Wide Area Augmentation System

Procurement Specification

Preplanned Product Improvements for

Full Operational Capability

![](media/image1.wmf){width="1.8395833333333333in" height="1.80625in"}

Prepared by: AND-730

Approved by: AFS-430

Federal Aviation Administration

800 Independence Avenue, SW

Washington, DC 20591

**TABLE OF CONTENTS**

[1.0 Scope 1](#scope)

[1.1 Identification 1](#identification)

[1.2 System Overview 1](#system-overview)

[1.3 Document Overview 2](#document-overview)

[2.0 Applicable Documents 3](#applicable-documents)

[2.1 Government Documents 3](#government-documents)

[2.1.1 Specifications 3](#specifications)

[2.1.1.1 FAA 3](#faa)

[2.1.1.2 Military 3](#military)

[2.1.2 Standards 3](#standards)

[2.1.2.1 FAA Standards 3](#faa-standards)

[2.1.2.2 FAA Orders 3](#faa-orders)

[2.2 Non-Government Documents 4](#non-government-documents)

[3.0 Requirements 5](#requirements)

[3.1 WAAS FOC Definition 5](#waas-foc-definition)

[3.1.1 WAAS Objectives 5](#waas-objectives)

[3.1.3 WAAS Functions 5](#waas-functions)

[3.1.3.1 WAAS Message Broadcast and Ranging
5](#waas-message-broadcast-and-ranging)

[3.1.3.1.1 Message Format 6](#message-format)

[3.1.3.1.2 Repetition of GPS/WAAS SIS Alarm Messages
6](#repetition-of-gpswaas-sis-alarm-messages)

[3.1.3.1.3 Message Broadcast and Ranging
6](#message-broadcast-and-ranging)

[3.1.3.1.4 Monitor WAAS Signal Quality 6](#monitor-waas-signal-quality)

[3.1.3.1.5 Update Intervals 6](#update-intervals)

[3.1.3.1.5.1 PRN and IGP Mask Update 6](#prn-and-igp-mask-update)

[3.1.3.1.6
Test............................................................................................
6](#test)

[3.1.3.2 WAAS Operations and Maintenance (O&M)
6](#waas-operations-and-maintenance-om)

[3.1.3.2.1 Operations and Maintenance Data Collection
7](#operations-and-maintenance-data-collection)

[3.1.3.2.1.1 WAAS Configuration Data 7](#waas-configuration-data)

[3.1.3.2.1.2 WAAS Status Data 7](#waas-status-data)

[3.1.3.2.1.3 WAAS Performance Data 7](#waas-performance-data)

[3.1.3.2.1.4 Manual Inputs 7](#manual-inputs)

[3.1.3.2.2 System Monitor and Control 7](#system-monitor-and-control)

[3.1.3.2.2.1 Off-Line Monitoring 7](#off-line-monitoring)

[3.1.3.2.2.2 Processing 8](#processing)

[3.1.3.2.3 Corrective Maintenance 8](#corrective-maintenance)

[3.2 System Characteristics 9](#system-characteristics)

[3.2.1 User Service Performance Requirements
9](#user-service-performance-requirements)

[3.2.1.1 LNAV Service 9](#lnav-service)

[3.2.1.1.1 LNAV Service Areas 9](#lnav-service-areas)

[3.2.1.1.1.1 LNAV CONUS Service Volume 10](#lnav-conus-service-volume)

[3.2.1.1.1.2 LNAV Alaska Service Volume 10](#lnav-alaska-service-volume)

[3.2.1.1.1.3 En Route Outside of CONUS (OCONUS) Service Volume
10](#en-route-outside-of-conus-oconus-service-volume)

[3.2.1.1.2 LNAV Accuracy 10](#lnav-accuracy)

[3.2.1.1.3 LNAV Availability 10](#lnav-availability)

[3.2.1.1.3.1 LNAV CONUS Availability 10](#lnav-conus-availability)

[3.2.1.1.3.2 LNAV Alaska Availability 11](#lnav-alaska-availability)

[3.2.1.1.3.3 En Route OCONUS Availability
11](#en-route-oconus-availability)

[3.2.1.1.5 LNAV Integrity 11](#lnav-integrity)

[3.2.1.1.5.1 LNAV Probability of Hazardously Misleading Information
(P(HMI))
11](#lnav-probability-of-hazardously-misleading-information-phmi)

[3.2.1.1.5.2 LNAV WAAS Corrected Accuracy
11](#lnav-waas-corrected-accuracy)

[3.2.1.1.5.3 GEO User Range Accuracy (URA)
11](#geo-user-range-accuracy-ura)

[3.2.1.1.5.4 WAAS Network Time to GPS Network Time Maximum Offset
11](#waas-network-time-to-gps-network-time-maximum-offset)

[3.2.1.2 LPV Service 12](#lpv-service)

[3.2.1.2.1 LPV Service Areas 12](#lpv-service-areas)

[3.2.1.2.1.1 LPV CONUS Service Volume 12](#lpv-conus-service-volume)

[3.2.1.2.1.2 LPV Alaska Service Volume 12](#lpv-alaska-service-volume)

[3.2.1.2.2 LPV Accuracy 12](#lpv-accuracy)

[3.2.1.2.2.1 CONUS LPV Horizontal Accuracy
12](#conus-lpv-horizontal-accuracy)

[3.2.1.2.2.2 CONUS LPV Vertical Accuracy
12](#conus-lpv-vertical-accuracy)

[3.2.1.2.3 LPV Availability 12](#lpv-availability)

[3.2.1.2.3.1 LPV CONUS Availability 12](#lpv-conus-availability)

[3.2.1.2.3.2 LPV Alaska Availability 12](#lpv-alaska-availability)

[3.2.1.2.5 LPV Integrity 12](#lpv-integrity)

[3.2.1.2.5.1 LPV Probability of Hazardously Misleading Information
(P(HMI))
13](#lpv-probability-of-hazardously-misleading-information-phmi)

[3.2.1.3 Time to Alarm 13](#time-to-alarm)

[3.2.1.3.1 LPV Time to Alarm 13](#lpv-time-to-alarm)

[3.2.1.3.2 LNAV Time to Alarm 13](#lnav-time-to-alarm)

[3.2.2 Processing Requirements 13](#processing-requirements)

[3.2.2.1 System Capacity 13](#system-capacity)

[3.2.2.1.1 WAAS 13](#waas)

[3.2.2.2 Software Development 13](#software-development)

[3.2.2.2.1 Computer Resource Reserve Capacity
13](#computer-resource-reserve-capacity)

[3.2.2.2.2 Computer Memory 14](#computer-memory)

[3.2.2.2.2.1 Volatile Memory 14](#volatile-memory)

[3.2.2.2.2.2 Non-Volatile Memory 14](#non-volatile-memory)

[3.2.2.2.3 Processing Speed 14](#processing-speed)

[3.2.2.3 Antenna Phase Center Location Requirements
14](#antenna-phase-center-location-requirements)

[3.2.2.3.1 Local Monument Location Requirements
14](#local-monument-location-requirements)

[3.2.2.4 Signal Processing Requirements
15](#signal-processing-requirements)

[3.2.2.4.1 Sensitivity and Dynamic Range
15](#sensitivity-and-dynamic-range)

[3.2.2.4.1.1 L1-C/A Signal Processing Requirements
15](#l1-ca-signal-processing-requirements)

[3.2.2.4.1.2 L2-P(Y) Signal Processing Requirements
15](#l2-py-signal-processing-requirements)

[3.2.2.4.2 RF Interference Rejection 15](#rf-interference-rejection)

[3.2.2.4.2.1 In-Band 15](#in-band)

[3.2.2.4.2.2 Out-Of-Band 16](#out-of-band)

[3.2.2.4.2.3 GEO Uplink Protection 17](#geo-uplink-protection)

[3.2.3 Interface Requirements 17](#interface-requirements)

[3.2.3.1 External Interface Requirements
17](#external-interface-requirements)

[3.2.3.1.1 GPS Satellites to the WAAS 18](#gps-satellites-to-the-waas)

[3.2.3.1.2 WAAS to User 18](#waas-to-user)

[3.2.3.1.3 WAAS External Interface 18](#waas-external-interface)

[3.2.3.1.4 NAS to WAAS 18](#nas-to-waas)

[3.2.3.2 Internal Interface Requirements
18](#internal-interface-requirements)

[3.2.4 Ground Based Electronic Equipment
18](#ground-based-electronic-equipment)

[3.2.4.1 Electrical 18](#electrical)

[3.2.4.1.1 Power Factor 18](#power-factor)

[3.2.4.1.2 Inrush Current 19](#inrush-current)

[3.2.4.1.3 Harmonics 21](#harmonics)

[3.2.4.1.4 Grounding and Bonding 21](#grounding-and-bonding)

[3.2.4.2 Transformer Isolation of Non-Switching DC Power Supplies
22](#transformer-isolation-of-non-switching-dc-power-supplies)

[3.2.4.3 Mechanical Installation 22](#mechanical-installation)

[3.2.4.3.1 Equipment Racks 22](#equipment-racks)

[3.2.4.3.1.1 Pullout Drawers 22](#pullout-drawers)

[3.2.4.3.1.2 Rack Panels 22](#rack-panels)

[3.2.4.4 Moisture 22](#moisture)

[3.2.4.5 Accessibility 22](#accessibility)

[3.2.4.5.1 General 22](#general)

[3.2.4.5.2 Line Replaceable Units (LRUs)
23](#line-replaceable-units-lrus)

[3.2.4.6 Interior Equipment Design Ranges
23](#interior-equipment-design-ranges)

[3.2.4.6.1 Indoor Operating Environments
23](#indoor-operating-environments)

[3.2.4.7 Exterior Equipment Design Ranges
23](#exterior-equipment-design-ranges)

[3.2.4.7.1 Outdoor Operating Environmental Conditions
23](#outdoor-operating-environmental-conditions)

[3.2.4.8 Seismic Zone Design 23](#seismic-zone-design)

[3.2.4.9 Bar Coding 23](#bar-coding)

[3.2.5 System Quality Factors 23](#system-quality-factors)

[3.2.5.1 Reliability 24](#reliability)

[3.2.5.1.1 WAAS Reliability and Redundancy
24](#waas-reliability-and-redundancy)

[3.2.5.1.2 Mean Time Between Failure (MTBF)
24](#mean-time-between-failure-mtbf)

[3.2.5.1.3 WAAS Reliability and Availability
24](#waas-reliability-and-availability)

[3.2.5.2 Maintainability 24](#maintainability)

[3.2.5.2.1 Periodic Maintenance Interval
24](#periodic-maintenance-interval)

[3.2.5.2.2 Periodic Maintenance Service Interruptions
24](#periodic-maintenance-service-interruptions)

[3.2.5.2.3 Corrective Maintenance Service Interruptions
24](#corrective-maintenance-service-interruptions)

[3.2.5.2.4 Redundant Equipment Switching
24](#redundant-equipment-switching)

[3.2.5.2.5 Fail-Safe, Fail-Soft Operation
24](#fail-safe-fail-soft-operation)

[3.2.6 Human Engineering 24](#human-engineering)

[3.2.7 System Security 24](#system-security)

[3.2.7.1 Physical Security 25](#physical-security)

[3.2.7.1.1 Physical Access Security 25](#physical-access-security)

[3.2.7.1.2 Physical Access Security of Leased GEO Uplink Facilities
25](#physical-access-security-of-leased-geo-uplink-facilities)

[3.2.7.1.3 Physical Access Security of International WAAS Reference
Stations
25](#physical-access-security-of-international-waas-reference-stations)

[3.2.7.2 Computer Security 25](#computer-security)

[3.2.7.2.1 Isolation of Critical WAAS Assets From Non-WAAS Subsystems
25](#isolation-of-critical-waas-assets-from-non-waas-subsystems)

[3.2.7.2.1.1 WAAS Only Use 25](#waas-only-use)

[3.2.7.2.1.2 Critical Subsystem Interface Isolation
25](#critical-subsystem-interface-isolation)

[3.2.7.2.2 Boot Only To WAAS Application
26](#boot-only-to-waas-application)

[3.2.7.2.2.1 Baseline Configuration of WAAS Workstations
26](#baseline-configuration-of-waas-workstations)

[3.2.7.2.3 Login Only Via WAAS Application
26](#login-only-via-waas-application)

[3.2.7.2.3.1 Access to Operating System 26](#access-to-operating-system)

[3.2.7.2.3.2 Login Accounts 26](#login-accounts)

[3.2.7.2.3.3 Passwords 26](#passwords)

[3.2.7.2.3.4 Password Expiration 26](#password-expiration)

[3.2.7.2.3.5 Unsuccessful Login 27](#unsuccessful-login)

[3.2.7.2.3.6 Logoff 27](#logoff)

[3.2.7.2.3.7 Encrypted Password Storage and Transmittal
27](#encrypted-password-storage-and-transmittal)

[3.2.7.2.3.8 Account Privilege Restrictions
27](#account-privilege-restrictions)

[3.2.7.2.4 Copying, Moving, Loading, and Downloading of Files
27](#copying-moving-loading-and-downloading-of-files)

[3.2.7.2.4.1 Loading and Downloading of WAAS Application Software
27](#loading-and-downloading-of-waas-application-software)

[3.2.7.2.4.2 Application Software File Integrity Checks at Start up
27](#application-software-file-integrity-checks-at-start-up)

[3.2.7.2.4.3 O&M External File Integrity Checks
27](#om-external-file-integrity-checks)

[3.2.7.2.4.4 Updating of Software Versions
28](#updating-of-software-versions)

[3.2.7.2.4.5 O&M Software Version Displays
28](#om-software-version-displays)

[3.2.7.2.5 Operator Inadvertent Action Safeguards
28](#operator-inadvertent-action-safeguards)

[3.2.7.2.5.1 Redundancy of System Status Alerts and Displays
28](#redundancy-of-system-status-alerts-and-displays)

[3.2.7.2.6 Message Center Processor (MCP) Security
28](#message-center-processor-mcp-security)

[3.2.7.3 Network Security 28](#network-security)

[3.2.7.3.1 Independent Networks 28](#independent-networks)

[3.2.7.3.2 Point-to-Point Connectivity 28](#point-to-point-connectivity)

[3.2.7.3.3 FOC Backbone Network Intrusion Detection & Firewalls
28](#foc-backbone-network-intrusion-detection-firewalls)

[3.2.7.3.4 Encryption of the FOC Backbone Networks
29](#encryption-of-the-foc-backbone-networks)

[3.2.7.3.5 Backbone Router Security Configuration Protection
29](#backbone-router-security-configuration-protection)

[3.2.7.3.5.1 Encryption Key Distribution Fail-Soft Capability
29](#encryption-key-distribution-fail-soft-capability)

[3.2.7.3.6 WAAS Application Communication Protocol
29](#waas-application-communication-protocol)

[3.2.7.3.6.1 WAAS Communication Protocol Message Validation
29](#waas-communication-protocol-message-validation)

[3.2.7.3.6.2 Notification of Failed Commands
29](#notification-of-failed-commands)

[3.2.7.3.7 WAAS External Interface External Security Requirements
29](#waas-external-interface-external-security-requirements)

[3.2.7.4 Collection of Security Audit Data
29](#collection-of-security-audit-data)

[3.2.7.4.1 Logon and Logoff Records 30](#logon-and-logoff-records)

[3.2.7.4.2 Account Changes 30](#account-changes)

[3.2.7.4.3 Intrusion Detection Records 30](#intrusion-detection-records)

[3.2.7.4.4 Configuration Change Records
30](#configuration-change-records)

[3.2.7.4.5 Periodic Configuration Check Records (need to verify)
30](#periodic-configuration-check-records)

[3.2.7.4.6 Consolidation of Attack Data into Recording Events
30](#consolidation-of-attack-data-into-recording-events)

[3.2.7.4.7 Download of Audit Records 30](#download-of-audit-records)

[4.0 Quality Assurance 31](#quality-assurance)

[4.1 Test Program 31](#test-program)

[4.1.1 WAAS Test Program 31](#waas-test-program)

[4.1.1.1 Software Qualification 31](#software-qualification)

[4.1.1.2 Hardware Quality Assurance 31](#hardware-quality-assurance)

[4.1.1.3 Verification Requirements Traceability Matrix (VRTM)
31](#verification-requirements-traceability-matrix-vrtm)

[4.1.1.4 Types of Testing 31](#types-of-testing)

[4.1.1.4.1 Development Test and Evaluation (DT&E)
31](#development-test-and-evaluation-dte)

[4.1.1.4.1.1 Engineering Evaluation and Test Requirements
31](#engineering-evaluation-and-test-requirements)

[4.1.1.4.1.2 Qualification Testing 32](#qualification-testing)

[4.1.1.4.1.3 Formal Test Verification of Performance
32](#formal-test-verification-of-performance)

[4.1.1.4.2 Production Acceptance Test and Evaluation (PAT&E)
32](#production-acceptance-test-and-evaluation-pate)

[4.2 General Testing Requirements 32](#general-testing-requirements)

[4.2.1 FAA Witnessing of Testing 32](#faa-witnessing-of-testing)

[4.2.2 Quality Assurance Program 32](#quality-assurance-program)

[4.2.2.1 Quality Assurance Program Guidance
32](#quality-assurance-program-guidance)

[4.2.2.2 Hardware and Software Quality Control Systems
32](#hardware-and-software-quality-control-systems)

[4.2.2.3 Test Conduct 32](#test-conduct)

[4.2.3 Configuration Management 32](#configuration-management)

[4.2.4 Regression Testing 33](#regression-testing)

[4.3 Special Tests and Examination Requirements
33](#special-tests-and-examination-requirements)

[4.3.1 Use of Simulation 33](#use-of-simulation)

[4.3.2 Test Samples 33](#test-samples)

[4.3.3 Interruption of Tests 33](#interruption-of-tests)

[4.3.4 Failure Reporting and Tracking
33](#failure-reporting-and-tracking)

[4.3.5 Qualification of Test Environment
33](#qualification-of-test-environment)

[4.4 User Service Performance Testing and Analysis
33](#user-service-performance-testing-and-analysis)

[4.4.1 P(HMI) Analysis 33](#phmi-analysis)

[Appendix A. FOC Verification Requirements Test Matrix
34](#__RefHeading___Toc55813870)

**LIST OF FIGURES**

[Figure 3‑1. Out-of-Band Rejection Characteristics for CW Interference
17](#__RefHeading___Toc55813872)

[Figure 3‑3. Inrush Current Limit Ratios
20](#__RefHeading___Toc55813873)

**LIST OF TABLES**

[Table 1‑1. WAAS Wide-area Reference Station (WRS) Sites
2](#__RefHeading___Toc44838279)

[Table 3‑1. In-Band Pulsed Interference 15](#__RefHeading___Toc44838280)

[Table 3‑3. Out-of-Band Rejection Characteristics
16](#__RefHeading___Toc44838281)

[Table 3‑5. Limits of Individual Harmonics Distortion
21](#__RefHeading___Toc44838282)

#  Scope

## Identification

This Specification establishes the functional and performance
requirements for the Wide Area Augmentation System (WAAS) Full
Operational Capability (FOC).

## System Overview

The WAAS is a safety-critical system consisting of the equipment and
software that augments the Department of Defense (DOD) Global
Positioning System (GPS) Standard Positioning Service (SPS). The WAAS
provides a signal-in-space to WAAS Users to support all phases of
flight. WAAS Users include all aircraft with approved WAAS avionics
using the WAAS for any approved phase of flight. The broadcast
signal-in-space provides two functions: (1) messaging (data on GPS and
GEO satellites); and, (2) a ranging capability. Background information
regarding the GPS can be found the GPS SPS Performance Standard.

Data from the GPS satellites are received and processed at widely
dispersed sites, referred to as Wide-area Reference Stations (WRSs) (See
Table 1-1). These data are forwarded to data processing sites, referred
to as Wide-area Master Stations (WMSs), which process the data to
determine the integrity, differential corrections, residual errors, and
ionospheric information for each monitored satellite and generate
Geostationary Earth Orbit (GEO) Satellite navigation parameters. This
WAAS-generated information is sent to a Ground Earth Station (GES) and
uplinked to GEO satellites. These GEO satellites then broadcast this
WAAS signal-in-space on the GPS L1 frequency with a modulation similar
to that used by GPS.

The WAAS User receiver processes the following information: (1)
integrity data to ensure that the satellites being used are providing
in-tolerance navigation data, (2) differential correction and
ionospheric data to improve the accuracy of the User\'s position
solution, and (3) ranging data from one or more of the GEO satellites
for use in position determination.

In addition to providing GPS integrity, WAAS verifies its own integrity
and takes any necessary action to ensure that the system meets the WAAS
performance requirements. WAAS also has a system operations and
maintenance (O&M) function that provides information to FAA Airway
Facilities (AF) National Airspace System (NAS) personnel.

The WAAS Training and Maintenance System (WTMS) is used to train system
operators and maintainers. The WTMS is comprised of two WMSs, two WRSs,
two O&M consoles, two backbone concentrator nodes (BCNs), and a
communications network simulator. It is designed to provide high
fidelity WAAS operations without impact to WAAS operation. The WTMS
provides a representation of WAAS behavior for software and hardware
maintenance activities for initial, refresher, update, and attrition
training as required. Further, the WTMS supports training development
for Full Operational Capability (FOC) enhancements,
commercial-off-the-shelf (COTS) equipment upgrades, Technical
Instruction Book (TIB) maintenance and validation, limited Second Level
Engineering Support (SLES) and limited Depot Maintenance screening for
No Fault Found assets.

[]{#__RefHeading___Toc44838279 .anchor}**Table 1‑1.** **WAAS Wide-area
Reference Station (WRS) Sites**

  --------------------------------- -------------------------------------
  **CURRENT WAAS**                  

  Albuquerque                       Juneau

  Anchorage                         Kansas City

  Atlanta                           Los Angeles

  Billings                          Memphis

  Boston                            Miami

  Chicago                           Minneapolis

  Cleveland                         New York

  Cold Bay                          Oakland

  Denver                            Puerto Rico

  Fort Worth                        Salt Lake

  Honolulu                          Seattle

  Houston                           Washington

  Jacksonville                      

                                    

  **Additions for FOC WAAS**        

  Mexico                            Mexico City, Merida, Tapachula,
                                    Puerto Vallarta, La Paz

  Canada                            Gander, Goose Bay, Winnipeg, Moncton

  Alaska                            Kotzebue, Bethel, Barrow, Fairbanks
  --------------------------------- -------------------------------------

## Document Overview

Section 2 lists the specifications, standards, and orders referred to in
this document. Section 3 provides the WAAS functional and performance
requirements. Section 4 identifies requirements for verification that
WAAS must meet to be compliant with this Specification.

#  Applicable Documents 

The following documents of the exact issue shown form a part of this
Specification and are applicable to the extent specified herein. In the
event of conflict between documents referenced herein and the contents
of this Specification, the contents of this Specification shall be
considered a superseding requirement.

## Government Documents

### Specifications

#### FAA

a\. FAA-BCATS-96-001, Automatic Data Collection Program Bar Code Asset
Serial Number Symbology, Quality, and Format Specification, March 1998

#### Military

a\. Global Positioning System Standard Positioning Service Performance
Standard, October 2001

b\. ICD-GPS-200, Revision C, NAVSTAR GPS Space Segment/Navigation User
Interfaces, with Interface Revision Notice 4 (IRN-200C-004), April 2000

c\. NIMA TR-8350.2. DoD World Geodetic Survey 1984, version 2 , January
2000 *(need to double check the date and the 8350.2)*

### Standards

#### FAA Standards

a\. FAA-STD-026A, NAS Software Development, June 2001

b\. FAA-STD-024B, Content and Format Requirements for the Preparation of
Test and Evaluation Documentation, August 1994

c\. Human Factors Design Standard, May 2003

#### FAA Orders 

a.  FAA TSO C145a, "Airborne Navigation Sensors Using the Global
    Positioning System (GPS) Augmented by the Wide Area Augmentation
    System (WAAS)," September 2002

b.  FAA TSO C146a, "Stand-Alone Airborne Navigation Equipment Using the
    Global Positioning System (GPS) Augmented by the Wide Area
    Augmentation System (WAAS)," September 2002

c.  FAA Order 1800.66, Configuration Management Policy, December 2000

d.  FAA Order 1810.4B, FAA NAS Test and Evaluation Policy, October 1992

e.  FAA Order 6000.15C, General Maintenance Handbook for Airway
    Facilities, August 2000

f.  FAA Order 6000.30C, NAS Maintenance Policy, January 2001

## Non-Government Documents

a\. RTCA/DO-178B, Software Considerations in Airborne Systems and
Equipment Certification, December 1992

b\. RTCA/DO-229C, Minimum Operational Performance Standards (MOPS) for
Global Positioning System/Wide Area Augmentation System Airborne
Equipment, November 2001

c\. Errata to RTCA/DO-229C, August 2002

d\. ANSI/ISO/ASQ Q9001-2000, Quality Management Systems -- Requirements,
December 2000

e\. NFPA-70

f\. IEEE 1100-1999

g\. ANSI/EIA 310D

#  Requirements

This section specifies the functional, performance, interface, and
design requirements as well as the quality factors and characteristics
of the WAAS FOC.

As a note, within this Specification points for clarification will be
made and highlighted in italics. Further, items still needing
review/confirmation are noted in \[brackets\]. These will later be
converted to hidden text.

## WAAS FOC Definition

WAAS FOC is defined in the sections below.

### WAAS Objectives

The objectives of the WAAS are to provide improved: (1) integrity, (2)
accuracy, (3) availability, and (4) continuity of service to the Global
Positioning System (GPS) Standard Positioning Service (SPS). The WAAS
Full Operational Capability (FOC) objective is to provide a navigation
system for all phases of flight.

### Reserved

#### Reserved

####  Reserved

### WAAS Functions

In order to accomplish the four objectives in paragraph 3.1.1 and meet
the signal-in-space performance requirements in paragraph 3.2.1, WAAS
includes two primary functions: (1) message broadcast and ranging; and
(2) operations and maintenance.

The WAAS functional requirements will be accomplished through a
combination of software and firmware development, Non-Development Item
(NDI) and Commercial-Off-The-Shelf (COTS) hardware, and communications.
Unless specifically designated as independent, common processing for
different functions can be performed by the same equipment.

#### WAAS Message Broadcast and Ranging 

WAAS shall provide a GPS-like ranging source, and integrity and
correction data to the WAAS User equipment. WAAS shall use GEO
satellites to broadcast the WAAS messages to the User equipment and
provide ranging sources.

##### Message Format

WAAS shall format the corrections and integrity data into a 500
symbols-per-second data stream in accordance with the formats in the
WAAS MOPS, RTCA/DO-229C.

##### Repetition of GPS/WAAS SIS Alarm Messages

WAAS shall repeat information sent in response to alarm conditions (as
defined in this Specification) in the 500 symbols-per-second data stream
three additional times within the next three seconds for a total of four
consecutive times.

*Information sent in response to an alarm condition could be any of the
following: a revised correction, UDRE, GIVE, "Not Monitored," or a
"Don't Use" message. The message ensures that post-correction errors are
bounded adequately as characterized by error bounds (protection levels)
defined in RTCA/DO-229C Appendix J. In order to meet continuity
requirements, "Don't Use" messages may need to be avoided except when
required to ensure integrity.*

##### Message Broadcast and Ranging

WAAS shall transmit data to each GEO satellite. *Data is defined to be
data that pertains to the WAAS Users within a defined GEO satellite
footprint and data which pertains to a specific GEO satellite.* WAAS
shall modulo-2 add, as described in the WAAS MOPS, the 500
symbols-per-second data stream to the unique 1.023 MHz 1023-bit Gold
Code assigned to each GEO satellite.

##### Monitor WAAS Signal Quality

WAAS shall monitor the signal quality of each GEO satellite transmission
and the SIS time-to-alarm performance achieved by the WAAS.

##### Update Intervals

WAAS shall broadcast all necessary WAAS messages such that 99.99% of the
data meets the maximum update intervals described in Table A-25 of
DO-229C. High priority data may preempt lower priority data as long as
all messages are broadcast at least once within the precision approach
time-out intervals specified in Table A-25.

###### PRN and IGP Mask Update

When the PRN or IGP mask is changed, WAAS shall control the
applicability of the new mask through the use of Issue Of Data (IOD)
information as defined in the WAAS MOPS. *These message broadcasts will
ensure that all User equipment recognizes the new mask before it is
applied.*

##### Test

WAAS shall broadcast a Type 0 message with Type 2 message contents when
a WAAS GEO is in Test mode.

#### WAAS Operations and Maintenance (O&M)

To accomplish system operations and maintenance, WAAS shall control,
monitor, and support maintenance to ensure system functionality and
performance in support of the objectives in paragraph 3.1.1, and the
WAAS signal-in-space requirements specified in paragraph 3.2.1. The WAAS
Operations and Maintenance function shall be comprised of: (1)
operations and maintenance data collection; (2) monitor and control; (3)
corrective maintenance; and (4) periodic maintenance.

Three terms are used to describe the WAAS Operations and Maintenance
function and they are defined as follows:

*a.* *system - the entire WAAS;*

*b. component - individual part of the WAAS, such as a WRE, or another
part of the WAAS that is in the final architecture; and*

*c. equipment - the individual items of equipment within a WAAS
component, such as a receiver or a processor.*

##### Operations and Maintenance Data Collection

To accomplish the System Operations and Maintenance function, data shall
be gathered from the WAAS components and equipment.

###### WAAS Configuration Data

The WAAS shall receive component and equipment configuration data from
each of the system components.

###### WAAS Status Data

The status of WAAS equipment and components shall be provided to the
system Operations and Maintenance function. *The type of configuration
status data required is design dependent, i.e., it is a function of the
degree of redundancy in the design of each component, and how backup
components and equipment are provided for failed components and
equipment. Typical status items include: processor configuration status,
transmitter configuration status, receiver configuration status, and any
applicable self-generated status reports produced by WAAS equipment and
components.*

###### WAAS Performance Data 

The WAAS shall gather performance data on the operation of each WAAS
component and equipment within that component. These data include, but
are not limited to: (1) CPU utilization, (2) RAM reserves, (3) computer
system throughput, and (4) signal strength at GPS receivers.

###### Manual Inputs

The WAAS shall accept manual inputs such as, but not limited to: (1)
list of GPS/WAAS satellites PRN mask, (2) GEO satellite information, and
(3) WAAS mode change commands.

##### System Monitor and Control 

The WAAS shall: (1) ensure that the system hardware and software operate
within specified tolerances, (2) monitor system configuration, and (3)
detect out-of-tolerance conditions.

###### Off-Line Monitoring

The WAAS shall provide data for off-line monitoring of functional and
performance trends to assist in identifying and correcting potential
faults before they impact WAAS operations.

###### Processing

The WAAS monitor and control shall occur continuously. The O&M function
shall manage and control the operational configuration of the WAAS such
that functional and performance requirements are satisfied.

####### Data Presentation

The WAAS shall generate data and graphical displays of GPS/WAAS
configuration and performance information for use by FAA personnel.
Displays of GPS/WAAS data shall include, as a minimum:

1\. graphical representation of the status and configuration of all WAAS
components and equipment within 2 seconds of arrival at the O&M function
of status change data,

2\. graphical geographic representation of coverage and service being
provided to the coverage region, *(This is to be accomplished by the
SMS)*

3\. status of GPS and GEO satellites, and

4\. status of WAAS communications network.

###### Reserved 

###### Reserved

#######  Reserved

####### Reserved

#######  Reserved

###### Reserved

##### Corrective Maintenance

The WAAS shall: (1) verify anomalous conditions detected during nominal
system operation, (2) support isolation of faults to the line
replaceable unit (LRU), (3) support replacement of defective/faulty
LRUs, (4) restore the component or equipment to full capability
(including proper levels of redundancy), and (5) support performance of
required maintenance administration activities in accordance with FAA
Order 6000.30C.

###### Reserved

###### Reserved

###### Reserved

###### Reserved

######  Reserved

###### Reserved

######  Reserved

####### Reserved

#######  Reserved

#####  Reserved

######  Reserved

## System Characteristics

### User Service Performance Requirements

The WAAS-provided User service shall meet the performance requirements
specified in this section of this Specification for properly functioning
User equipment. Properly functioning User equipment is defined to be
equipment that meets the all-in-view requirements of TSO-C146a and
airborne accuracy designator B from RTCA/DO-229C.

#### LNAV Service

The WAAS LNAV service level is that level of WAAS performance necessary
to support the LNAV, Terminal, En route Domestic, and En route Oceanic
modes of operation.

##### LNAV Service Areas

WAAS LNAV performance is defined individually for the following service
areas.

###### LNAV CONUS Service Volume

The WAAS LNAV CONUS service volume is defined as the volume from the
earth surface up to 100,000 feet above the surface of the 48
conterminous U.S. states (CONUS), extended to 30 nautical miles (nm)
beyond the exterior borders.

###### LNAV Alaska Service Volume

The WAAS Alaska service volume is defined as the volume from the earth
surface up to 100,000 feet above the surface of Alaska extended to 30
nautical miles (nm) beyond the Alaska exterior border within the
broadcast coverage area of a WAAS GEO satellite. *The broadcast coverage
area of a GEO satellite is defined to be the area where the received
signal strength is at least -161 dBW and where the GEO is at an
elevation angle of at least 5 degrees.*

###### En Route Outside of CONUS (OCONUS) Service Volume

The GPS/WAAS OCONUS En Route service volume is defined as the volume
from the earth surface up to 100,000 feet above the surface surrounded
by a polygon formed from the following points of latitude and longitude.
*Note the OCONUS service volume requirements do not supersede the LNAV
requirements applicable to the CONUS and Alaska service areas. The term
"GPS/WAAS" indicates that use of RAIM is allowed.*

  -----------------------------------------------------------------------
  **LATITUDE**                        **LONGITUDE**
  ----------------------------------- -----------------------------------
  50º N                               61º W

  50º N                               122º W

  70º N                               140º W

  70º N                               165º W

  68º N                               169º W

  20º N                               164º W

  17º N                               160º W

  17º N                               155º W

  30º N                               120º W

  16º N                               75º W

  16º N                               61º W

  50º N                               61º W
  -----------------------------------------------------------------------

##### LNAV Accuracy

The LNAV horizontal accuracy shall not exceed 36 meters, 95% when
GPS/WAAS-provided LNAV service is available within the LNAV service
volumes defined in 3.2.1.1.1.1 and 3.2.1.1.1.2. *The term "GPS/WAAS"
indicates that use of RAIM is allowed.*

##### LNAV Availability

The availability of GPS/WAAS-provided LNAV service is specified by
service volume.

###### LNAV CONUS Availability

GPS/WAAS-provided LNAV CONUS service shall have an availability of
0.9999. *GPS/WAAS-provided LNAV service is available when a properly
functioning User receiver computes a HPL of less than or equal to 0.3
nmi (556m), and service is predicted to be available.*

###### LNAV Alaska Availability

GPS/WAAS-provided LNAV Alaska service shall have an availability of
0.999. *GPS/WAAS-provided LNAV service is available when a properly
functioning User receiver computes a HPL of less than or equal to 0.3
nmi (556m), and service is predicted to be available.*

###### En Route OCONUS Availability

GPS/WAAS-provided En Route OCOUNUS service shall have an availability of
0.999. *GPS/WAAS-provided En Route service is available when a properly
functioning User receiver computes a HPL of less than or equal to 2.0
nmi, and service is predicted to be available.*

##### Reserved

##### LNAV Integrity

*The LNAV integrity requirements are defined as a horizontal position
domain requirement anywhere a WAAS-provided horizontal protection level
can be computed*

###### LNAV Probability of Hazardously Misleading Information (P(HMI))

The LNAV P(HMI) shall be less than 10^-7^ per hour*. LNAV hazardously
misleading information is defined to exist any time a properly
functioning User receiver\'s horizontal error exceeds the HPL and the
problem is not corrected within the WAAS time to alarm requirement.*

###### LNAV WAAS Corrected Accuracy

In the WAAS Network Time domain, the probability that the post
correction range error due to residual clock and ephemeris exceeds
4.42×σ~flt~ shall be less than 1.4E-5 per satellite in any given hour.
The definition of σ~flt~ is given in eq 1. The terms in eq. 1 are
described in section A.4.5.1 of RTCA DO-229C.

$$\sigma_{\text{flt}}^{2} = \left\{ \begin{matrix}
\text{min}\left( \left( \delta_{\text{UDRE}}\sigma_{\text{UDRE}} + 8m \right)^{2},\left( \delta_{\text{UDRE}}\sigma_{\text{UDRE}} + \varepsilon_{\text{FC}} + \varepsilon_{\text{rrc}} + \varepsilon_{\text{ltc}} + \varepsilon_{\text{er}} \right)^{2} \right)\text{if}\ \text{RSS}_{\text{UDRE}} = 0\ \text{and}\ \text{UDREI} < \text{14} \\
\text{min}\left( \left( \delta_{\text{UDRE}}\sigma_{\text{UDRE}} + 8m \right)^{2},\delta_{\text{UDRE}}^{2}\sigma_{\text{UDRE}}^{2} + \varepsilon_{\text{FC}}^{2} + \varepsilon_{\text{rrc}}^{2} + \varepsilon_{\text{ltc}}^{2} + \varepsilon_{\text{er}}^{2} \right)\text{if}\ \text{RSS}_{\text{UDRE}} = 1\ \text{and}\ \text{UDREI} < \text{14}
\end{matrix}\ \text{eq}\text{.}1 \right.\ $$

###### GEO User Range Accuracy (URA)

For GEO satellites, in the WAAS Network Time domain, the probability
that the range component of the uncorrected clock and orbit error
exceeds 4.42×URA shall be less than 1.4E-5 per satellite in any given
hour. The definition of URA is given in section A.4.4.11 of RTCA
DO-229C.

###### WAAS Network Time to GPS Network Time Maximum Offset

The offset between WNT and WAAS observed GPS Network Time (GNT) shall
not exceed 50 nanoseconds (nsec). *The limit on the WAAS Network Time to
GPS Network Time offset is provided to protect User receiver equipment
that combines WAAS corrected and uncorrected satellite range
measurements.*

#### LPV Service

The WAAS LPV service level is that level of WAAS performance necessary
to support the LPV and LNAV/VNAV levels of WAAS-provided horizontal and
vertical navigation services.

##### LPV Service Areas

###### LPV CONUS Service Volume

The WAAS LPV CONUS service volume is defined as the volume from the
earth surface up to 10,000 feet above the surface of CONUS, extended to
30 nautical miles (nm) beyond the exterior borders.

###### LPV Alaska Service Volume

The WAAS Alaska service volume is defined as the volume from the earth
surface up to 10,000 feet above the surface of Alaska extended to 30
nautical miles (nm) beyond its border and within the coverage area of a
WAAS GEO.

##### LPV Accuracy

*The LPV accuracy is defined in terms of 95% horizontal accuracy and 95%
vertical accuracy using an all-available LPV satellite solution*.

###### CONUS LPV Horizontal Accuracy

The horizontal accuracy, averaged over time and space, shall not exceed
1.5 meters, 95% when WAAS-provided LPV service is available within any
of the LPV service areas.

###### CONUS LPV Vertical Accuracy

The vertical accuracy, averaged over time and space, shall not exceed 2
meters, 95% when WAAS-provided LPV service is available within either of
the LPV service areas.

##### LPV Availability 

WAAS-provided LPV service is available when a properly functioning User
receiver computes a HPL of less than or equal to 40 meters and a VPL of
less than or equal to 50 meters, and service is predicted to be
available.

###### LPV CONUS Availability

WAAS-provided LPV CONUS service shall have an availability of 0.99.

###### LPV Alaska Availability

WAAS-provided LPV Alaska service shall have an availability of 0.95 for
at least 75% of the LPV Alaska Service Volume.

##### Reserved

##### LPV Integrity

The LPV integrity requirements are defined as a position domain
requirement for WAAS-provided LPV service anywhere a WAAS-provided
horizontal protection level and WAAS-provided vertical protection level
can be computed.

###### LPV Probability of Hazardously Misleading Information (P(HMI))

The LPV P(HMI) shall be less than 10^-7^ per approach. *LPV hazardously
misleading information is defined to exist anytime a properly
functioning User receiver\'s horizontal error exceeds the HPL or the
vertical error exceeds the VPL and the problem persists but is not
corrected within the time to alarm requirement.*

#### Time to Alarm

*The WAAS time to alarm is defined as the time starting when an alarm
condition occurs to the time that the last bit of the first alarm
message (\"Don\'t Use\" message or another WAAS SIS message that removes
the alarm condition) arrives at the User's antenna or the condition is
corrected*.

##### LPV Time to Alarm

The WAAS LPV time to alarm shall be 6.2 seconds or less.

##### LNAV Time to Alarm

The WAAS LNAV time to alarm shall be 10 seconds or less.

### Processing Requirements

#### System Capacity

The WAAS shall have a modular design so that expansion can be
accomplished by the addition of hardware and software.

##### WAAS

The WAAS FOC shall be capable of:

a\. processing inputs from at least 45 geographically dispersed WRSs
that comply with the established WRS/WMS interface;

b\. networking of at least three WMSs such that any one of the three can
provide the total WAAS service for the defined service volumes;

c\. switching between WMSs automatically with no interruption in
service; and

d\. providing WAAS signal-in-space from each WMS for up to four GEO
satellites at the same time.

#### Software Development 

Software shall be developed in accordance with FAA-STD-026 in
conjunction with RTCA/DO-178B. *Software is defined as computer
programs, procedures, rules, and associated documentation and data
pertaining to the operation of the WAAS.*

##### Computer Resource Reserve Capacity

Processing resource requirements for each element of the WAAS shall be
in accordance with FAA-STD-026.

##### Computer Memory

All WAAS memory shall incorporate error sensing, error reporting, and
normal status reporting, which will be consistent with meeting the
overall system performance requirements in paragraph 3.2.1.

###### Volatile Memory

Under worst case loading conditions, no more than 50% of the total
addressable, populated memory locations shall be used during execution
of any program to hold instructions or data.

###### Non-Volatile Memory

Non-volatile memory includes such items as programmable read-only
memory, electrically programmable read-only memory, and non-volatile
random access memory. Non-volatile memory embedded in any WAAS component
or equipment shall be capable of expansion with no effect on form, fit,
or interface factors.

##### Processing Speed

Each processor, including input/output subsystems, in the WAAS System
that executes software in support of system performance requirements
shall use no more than 70% of the processor\'s throughput capability
under worst-case conditions.

#### Antenna Phase Center Location Requirements

The phase center of each antenna used to receive the GPS and GEO signals
shall be located with the following accuracies in accordance with NIMA
WGS84 Specification TR-8350.2:

a\. Horizontal: 1 cm 95% GPS; and

b\. Vertical: 2 cm 95% GPS.

##### Local Monument Location Requirements

The local monument used for locating WAAS receive antennas shall be a U.
S. Geodetic Survey Federal Base Network Point or equivalent. The local
monument shall be a National Geodetic Survey Quality Code A, or Code B
where Code A is impractical, for Horizontal and Ellipsoidal Height and
National Geodetic Reference System for Orthometric Height at the
following accuracy levels in accord with NIMA WGS84 Specification
TR-8350.2:

a\. Horizontal: 5 cm 95% GPS;

b\. Ellipsoidal Height: 10 cm 95% GPS; and

c.  Orthometric Height: 10 cm NAVD 88.

#### Signal Processing Requirements 

##### Sensitivity and Dynamic Range

###### L1-C/A Signal Processing Requirements

GPS L1-C/A signal measurements shall be met with an input signal (GPS or
WAAS) between -161 dBW and -153 dBW (dB relative to 1 watt at the output
of a 3 dBi linearly polarized antenna) with an elevation angle between
5° and 90° and a sky temperature of 100K.

###### L2-P(Y) Signal Processing Requirements

GPS L2-P(Y) signal measurements shall be provided without knowledge of
the Y-Code with an input signal between -166 dBW and -154 dBW incident
on the antenna as stated above.

##### RF Interference Rejection

The requirements stated below assume an RF environment in which
unintentional interference above the stated rejection levels is absent
due to: (1) appropriate antenna site selection, (2) suitable filtering
of emissions by offending interference sources, and/or (3) regulatory
mandates to curtail offending interference sources.

###### In-Band

*In-band is defined to include all frequencies between 1217.6 MHz and
1237.6 MHz for the GPS L2-P(Y) signal, between 1565.42 MHz and 1585.42
MHz for the GPS/WAAS L1-C/A signals, and between 1166.45 MHz and 1186.45
MHz for the GPS/WAAS L5 signals*.

####### In-Band Rejection for CW and Noise Interference

After initial signal acquisition and steady-state operation has
commenced, a GPS/WAAS receiver shall operate in the presence of a single
CW or noise interferer with an interference to signal power ratio of 30
dB for GPS and 24 dB for WAAS. For purposes of verification, the
interference signal shall be relative to the minimum GPS/WAAS signal
levels.

####### In-Band Rejection for Pulsed Interference

After initial signal acquisition and steady-state operation has
commenced, a GPS/WAAS receiver shall operate in the presence of a single
pulsed interferer with characteristics identified in Table 3-2.

[]{#__RefHeading___Toc44838280 .anchor}Table 3‑2. In-Band Pulsed
Interference

  ------------------ --------------------------- -------------------------
  **Signal**         **GPS/WAAS**                **GPS Only**

  Peak Power         +10 dBm                     +10 dBm

  Pulse Width        125 μsec                    1 ms

  Pulse Duty Cycle   10%                         10%
  ------------------ --------------------------- -------------------------

###### Out-Of-Band

*Out-of-band is defined to include all frequencies less than 1166.4 MHz,
all frequencies between 1237.6 MHz and 1565.42 MHz, and all frequencies
greater than 1585.42 MHz*.

####### Out-Of-Band Rejection for CW Interference

After initial signal acquisition and steady-state operation has
commenced, a GPS/WAAS antenna/receiver shall operate in the presence of
a single CW interferer that does not exceed the interference to signal
power ratio by more than the levels shown in Table 3-2 (see Figure 3-1
also). The interference signal shall be relative to the minimum GPS/WAAS
signal levels. *The signal suppression allocations are as follows: 80 dB
for the antenna filter, 50 dB for CRR out of band, and 24 dB for the
GPS/WAAS receiver in-band processing gain.*

[]{#__RefHeading___Toc44838281 .anchor}**Table 3‑3. Out-of-Band
Rejection Characteristics**

  -------------------------------- --------------------------------------
  **Interference Frequency, f      **Interference to Signal Power** Ratio
  (MHz)**                          (dB)

  f ≤ 1106.45                      ≥150 dB

  1106.45 \< f ≤1166.45            +150 -- 2\*(f-1106.45) dB

  1237.6 \< f ≤ 1297.6             +30 + 2\*(f - 1237.6) dB

  1297.6 \< f ≤ 1505.42            ≥150 dB

  1505.42 \< f ≤ 1565.42           +150 - 2\*(f-1505.42) dB

  1585.42 \< f ≤ 1645.42           +30 + 2\*(f - 1585.42) dB

  1645.42 \< f                     ≥150 dB
  -------------------------------- --------------------------------------

![](media/image2.wmf){width="5.998611111111111in"
height="2.9569444444444444in"}

[]{#__RefHeading___Toc55813872 .anchor}Figure 3‑1. Out-of-Band Rejection
Characteristics for CW Interference

###### GEO Uplink Protection

The WAAS shall protect the GEO uplink from interference and HMI.

####### Interference Protection

The WAAS shall ensure that the signal transmitted to the GEO satellite
will be protected from interference up to 10 dB above the established
normal radiated signal power.

####### HMI Protection

The WAAS shall not increase the probability that HMI is broadcast to a
User in the presence of unintentional interfering signals up to 10 dB
above established normal radiated signal power.

### Interface Requirements

#### External Interface Requirements

The WAAS shall have the external interfaces listed below:

a\. The GPS to the WAAS

b\. WAAS to the Navigation Service User

c\. WAAS External Interface (WEI) / O&M External Interface (OEI)

d.  NAS to WAAS

##### GPS Satellites to the WAAS

The WAAS shall receive GPS signal data from the GPS Standard Positioning
Service (SPS) on the Link 1 (L1) and Link 2 (L2) frequencies in
accordance with the Global Positioning System SPS Performance Standard
and GPS-ICD-200.

##### WAAS to User

The WAAS shall transmit all of the WAAS messages identified in DO-229C
necessary to meet the performance requirements in Section 3.2.1.

##### WAAS External Interface 

WAAS shall provide data, including status and performance data, through
a one-way interface(s)*.*

##### NAS to WAAS

WAAS shall provide for manual entry of data and control commands or
requests. *All of the manual entry of data and control commands will be
entered at the OCC or the WMS by airway Facilities (AF) NAS systems
operations personnel.*

#### Internal Interface Requirements

The internal interfaces of the WAAS shall conform to industry standard
interfaces.

### Ground Based Electronic Equipment

The general electronic equipment requirements are tailored in the
following subparagraphs and all equipment shall meet the following
requirements unless explicitly approved by the FAA.

#### Electrical

The Alternating Current (AC) supply line will be provided by the
Government facility that houses the WAAS component(s).

##### Power Factor

The power factor shall be within the ranges specified for the following
ranges of facility source KVA capacity measured at the rack power input
location.

  --------------------------------- -------------------------------------
  Watts (W)                         PF (power Factor)

  W\<2000                           0.7 (lag) to -0.7 (lead)

  2000 \<= W \<=5000                0.8 (lag) to -0.9 (lead)

  5000 \< W                         0.9 (lag) to 1.0
  --------------------------------- -------------------------------------

(values from FAA-G-2100F, November 15 1993, para 3.1.2.4.2 because the
values in the current version of 2100 appear to be typos. If they are
not typos, then what we are putting in 2976 is slightly tighter and is
also what we already exceed.)

Power factor (PF) is defined as the absolute value of the product of the
displacement component of power factor and the distortion component of
power factor.

PF = \|PFdisp x PFdist\|

The displacement component of the power factor, PFdisp, is equal to the
cosine of the angle between voltage and current which can be calculated
by dividing the power dissipation in watts by the apparent power in
volt-amperes (VA).

PFdisp = COS(theta) = Watts/VA

The distortion component of the power factor, PFdist , is equal to the
reciprocal of the square root of one plus the square of the total
harmonic distortion of the equipment (THD) as defined in IEEE STD 519
(Harmonic Control and Reactive Compensation of Static Power Converters,
Guide for).

![](media/image3.png){width="1.875in" height="0.6145833333333334in"}

##### Inrush Current

*Inrush current is defined as the peak amount of current that a load or
device draws when first energized*.

a.  The steady state values of root mean square (rms) current shall be
    measured.

b.  The test voltage source shall have at least five (5) times the full
    load or steady state rms current rating of the load or device under
    test at the point of connection of the device or load under test.
    Total voltage distortion of the source shall not exceed three
    percent (3%).

c.  Cord connected equipment shall be connected to the test voltage
    source with the same size, type and length of cord to be furnished
    with the load or device under test. All other devices or loads shall
    be connected to the test voltage source with four (4) foot long
    conductors sized for their rms current in accordance with NFPA-70.
    All cords and conductors shall be directly connected to the test
    voltage source.

d.  The ratio of peak inrush current to rms current for loads or devices
    up to 40A, measured on the phase conductor with highest current,
    shall be equal to or less than the ratio defined by Figure 3-2.

![](media/image4.png){width="4.239583333333333in" height="3.40625in"}

[]{#__RefHeading___Toc55813873 .anchor}Figure 3‑2. Inrush Current Limit
Ratios

e.  *The Inrush Current Limit Ratio curves in Figure 3-2 are based on
    the following factors.*

    1.  *The actual time current curves and tolerances of several
        manufacturers standard molded case circuit breakers spanning
        ratings of 15 to 100+A.*

    2.  *The actual current inrush, (as defined by the IEEE, see page 9
        of IEEE-Std 1100-1999), of transformers, capacitors, motors,
        light bulbs, and switch mode power supplies.*

    3.  *Many standard molded case breakers can respond in 5 ms
        (milliseconds).*

    4.  *Amperes determine the size of circuit breakers and distribution
        systems. The responsibility for facility distribution system
        design to support the load requirements is the FAA's. The
        voltage drop created by energizing the load, at any supply
        voltage, is minimal and tolerable when the facility distribution
        system is properly designed.*

    5.  *All standard molded case breakers have common trip curve
        characteristics in the ampere ranges defined. The shape/slope is
        common, but the actual values are not common.*

    6.  *Cardinal points of manufacturers curves were used to create
        these composite curves. It is conservative, but recognizes, and
        allows, true inrush of most devices.*

    7.  *There will be a small number of special load applications that
        will require either special circuit breaker applications or load
        inrush modifications. A heavily loaded, high inertia motor, or a
        large HVAC fan for example, may require reduced voltage starting
        or a facility distribution special circuit breaker application*.

##### Harmonics

The individual current harmonic distortion produced at the interface to
the facility shall be less than the limits listed in Table 3-4 measured
at the input side of the power distribution where the rack is attached.
The total current harmonic distortion (THD) for equipment or subsystems
requiring power of 40 kilowatts or more shall be limited to 10 percent.
*THD is defined in IEEE STD 519.*

[]{#__RefHeading___Toc44838282 .anchor}Table 3‑4. Limits of Individual
Harmonics Distortion

![](media/image5.png){width="5.666666666666667in" height="4.34375in"}

##### Grounding and Bonding 

a)  Bonds shall be made using compatible materials. Where this is
    impractical, the bonds shall be protected from moisture. Outdoor
    bonds shall be protected against weather, corrosive atmospheres, and
    mechanical damage. All bonds shall exhibit a resistance of 1
    milliohm or less when measured between the bonded members with a
    4-terminal milliohm meter, except for bonding types delineated in
    item (c).

b)  For FOC site installations that are the responsibility of the
    contractor, the contractor shall protect WAAS antennas from
    Lightning (air terminals, down conductors).

c)  The individual sections of cable tray systems for electronic
    conductors shall be bonded together, and each support bracket or
    hanger shall be bonded to the cable trays that they support. The
    resistance of each of these electronic connections shall not exceed
    5 milliohms. All tray assemblies for electronic conductors shall be
    connected, either directly or indirectly, to the electronic
    multipoint ground system.

#### Transformer Isolation of Non-Switching DC Power Supplies 

All non-switching DC power supplies energized from the facility AC line
power source shall be isolated from the AC line through a power
transformer with separate primary and secondary windings.

Where connected to facility power, the DC resistance from each input
line terminal (with fuses in place and AC line control contacts closed)
to the signal or chassis ground shall be greater than 1 megohm.

#### Mechanical Installation

The equipment shall be designed for installation, removal and
reinstallation without special tools unless approved by the FAA.

##### Equipment Racks

###### Pullout Drawers

All equipment pullout drawers shall be of a full-suspension roller type
with latching stops. Friction-slide construction shall be prohibited.
Slides shall be of sufficient rigidity to prevent bowing and/or having
rollers jump their track when the drawer is fully extended and
components are being replaced/maintained.

Drawers shall be equipped with handles to permit withdrawing the drawer
into the open position and latches on active panel fasteners to secure
the drawer in the closed position. The rack cabinet shall not tip over
during normal operation and all maintenance activities.

###### Rack Panels

Where rack panels are used, they shall be in accordance with ANSI/EIA
310-D (Cabinets, Racks, Panels, and Associated Equipment). The panel
slot/hole pattern shall be the universal hole spacing pattern for 1U,
2U, and 3U panels and the wide hole spacing for panels 4U and higher.

#### Moisture

Equipment in its operational environment shall not collect moisture.

#### Accessibility

##### General

Equipment shall be designed for accessibility, operating compatibility,
maintenance, electromagnetic compatibility, and enclosure requirements.

##### Line Replaceable Units (LRUs)

Line Replaceable Units (LRUs) shall be removable and replaceable. LRU
mounting devices shall provide the capability of the LRU to be
repeatedly installed and removed without degrading performance.

#### Interior Equipment Design Ranges

The parts of the WAAS components that will be operated within FAA
facilities shall meet the specified attended interior equipment design
ranges..

##### Indoor Operating Environments

The WAAS equipments that will be operated within FAA facilities shall
operate at elevation from sea level in feet: 0 to +6,000.

The WAAS equipments that will be operated within FAA facilities shall
operate in manned or attended facilities where the temperature range is
+61°F to +85ºF with relative humidity of 30% to 80%, non-condensing.

#### Exterior Equipment Design Ranges

The WAAS equipment that will be operated on the outside of FAA
facilities, such as antennas, shall meet the environmental conditions
specified.

##### Outdoor Operating Environmental Conditions

The WAAS equipments shall operate at elevation from sea level to +6,000
feet, with temperature from -50 to +70C, relative humidity from 5
to100%, with wind velocity, any direction between 0 to 100 miles per
hour. The WAAS equipment shall also continue to operate when encased
in1/2 inch radial thickness clear ice

#### Seismic Zone Design

Full height equipment enclosures shall have the capacity to support the
weight of all installed components and equipment without exhibiting
immediate or catastrophic failure under Seismic Zone conditions as
specified in Uniform Building Code 1994. Enclosures and mounted LRUs
shall remain upright and in place, and all access panels, doors, and
drawers shall also remain secured under these conditions.

#### Bar Coding

WAAS line replaceable units and associated spares acquired for FOC shall
be labeled in accordance with FAA-BCATS-96-001, Bar Code Location Label
Symbology, Quality and Format Specification. *Current WAAS equipments
will also be bar coded but that will be accomplished as part of the
depot cycle*.

### System Quality Factors 

#### Reliability

##### WAAS Reliability and Redundancy

The WAAS shall have sufficient reliability and redundancy to meet the
overall system performance requirements in paragraph 3.2.1 with no
single point of failure.

##### Mean Time Between Failure (MTBF)

Each WAAS component shall have a minimum mean-time-between-failure
(MTBF) of 2,190 hours.

##### WAAS Reliability and Availability

The WAAS design shall satisfy the reliability and availability
requirements specified in FAA Order 6000.30C.

#### Maintainability

The maintainability of the WAAS shall be calculated with the following
considerations.

##### Periodic Maintenance Interval

The minimum interval for periodic maintenance for each component in the
WAAS shall not be less than 2,190 hours (quarterly) and be limited to
cleaning, inspecting, adjusting and replacing parts in accordance with
their service life expectancy or as found necessary during inspection.

##### Periodic Maintenance Service Interruptions

Periodic maintenance shall not require WAAS service interruption.
Periodic maintenance shall not require WAAS service interruption or
degradation for more than 8 hours per year for the GUS.

##### Corrective Maintenance Service Interruptions

Corrective maintenance shall not interrupt or degrade the performance of
any WAAS function.

##### Redundant Equipment Switching

Where redundant equipment is incorporated to provide required
availability, switching to the back-up element shall be automatic and be
accomplished in time to maintain GPS/WAAS signal-in-space performance.

##### Fail-Safe, Fail-Soft Operation

WAAS equipment shall be designed such that any failure in the equipment
will not degrade the safety of the NAS.

### Human Engineering 

In the selection of hardware and the design of software, all WAAS
components shall conform to the applicable human engineering
requirements of HF Standard 001. COTS equipment not meeting this
standard shall be subject to approval by the FAA.

### System Security

WAAS system security shall be provided by a combination of physical,
computer, procedural, and network security mechanisms as stated in this
section of this specification.

#### Physical Security

*The term \"will\" is used in the following subsections to distinguish
physical security mechanisms that are part of the WAAS design from the
physical security mechanisms that are part of the hosting facilities.
The \"wills\" also indicate a distinction between WAAS NAS level
requirements and the requirements that the WAAS FOC upgrades procured
under this specification need to be designed to meet. \"Shall\" is used
for actual procurement specification requirements. The \"will\"
requirements are provided as a reference to the WAAS developer so that
security mechanisms will not be duplicated and as a references to FAA
personnel reviewing this specification from a security perspective.*

##### Physical Access Security

FAA facilities hosting WAAS subsystems will provide physical security
meeting the requirements of FAA Order 1600.69 or the applicable orders
for that particular FAA facility.

##### Physical Access Security of Leased GEO Uplink Facilities

The leased GEO uplink system providers will provide physical security of
the WAAS uplink systems in accordance with the contract for those leased
services and only to personnel with the appropriate level background
check. ***\]***

##### Physical Access Security of International WAAS Reference Stations

The owners/operators of the WAAS Canadian and Mexican International WRSs
will provide physical security of those WRSs in accordance with the
security provisions of the Memo of Understanding (MOU) or other
agreement between the FAA and the applicable foreign government (i.e.,
Canada or Mexico).

#### Computer Security

##### Isolation of Critical WAAS Assets From Non-WAAS Subsystems

The WAAS security critical computer based subsystems that are essential
to the performance of the WAAS user service shall meet the isolation
requirements of the following subparagraphs. The critical WAAS
subsystems are defined to be the correction and verification (C&V)
subsystems, the WAAS receiving equipment (WRE) subsystems, the
operations and maintenance (O&M) subsystems, the GEO uplink subsystems
(GUS), and the WAAS terrestrial communications subsystem (TCS). *No
change intended. The GEO payload was left off the list on purpose.*

###### WAAS Only Use

All WAAS critical subsystems assets shall be 100% dedicated to the WAAS
system, and shall never be shared for use by any non-WAAS system. *No
change intended.*

###### Critical Subsystem Interface Isolation 

All WAAS critical subsystems shall only directly interact with other
WAAS critical subsystems and/or the WAAS operations and maintenance
personnel with the exception of the GUS M&C interface. *No change
intended, the word \"interact\" was used to avoid confusing the issue by
having to exclude power, ground, and heating/cooling interfaces that are
N/A as security issues.*

####### GUS M&C Interface Isolation

The GUS shall control access to the WAAS from the M&C by only accepting
from, or sending to, the M&C interface authenticated data which meets
the specification for that interface. *No change, included M&C for
completeness since it is the only interface to a non-critical subsystem
that is not an air gap. The intent is to isolate the electrical and data
interface.*

##### Boot Only To WAAS Application

All WAAS critical subsystem workstations shall pass control directly to
the WAAS application software as soon as the boot process has been
completed after; 1) a power on, or 2) a restart or reset. *Minor change,
backdoor for 2^nd^ level maintenance needs to be removed. We may want to
consider having the startup script attempt to kill the kernel or power
off the CPU upon an unsuccessful boot after the error logs are written
to ensure a unit that doesn\'t start properly isn\'t left with a working
command prompt. The assumption would be that the kill attempt would be
successful or that everything would be sufficiently hosed that no
security damage could occur.*

###### Baseline Configuration of WAAS Workstations

If a WAAS critical subsystem workstation is booted using the
AOS-certified WAAS baseline distribution CD-ROM, the control of the
workstation shall be passed automatically to the WAAS configuration
scripts from that CD-ROM. *No change intended.*

##### Login Only Via WAAS Application

All WAAS critical subsystem workstations shall control login access via
the WAAS application software. *No change intended.*

###### Access to Operating System

Direct login access to the operating system command prompt shall be
prohibited on any WAAS critical subsystem workstation. *No change
intended.*

###### Login Accounts

All WAAS critical subsystem workstations shall only permit login after
an authorized administrator has established a unique account on that
subsystem workstation. *No change intended.*

###### Passwords

WAAS critical subsystems shall require user passwords to be at least
eight to twelve characters. Passwords must contain at least three of the
following four characteristics: two or more numeric characters, two or
more upper-case non-numeric characters, two or more lower-case
non-numeric characters, and one or more special characters.

###### Password Expiration

WAAS critical subsystem workstation passwords shall expire periodically
*(between one to 6 months)* and a local administrator will be required
to select a new password prior to obtaining access. The subsystem
workstation shall maintain a password history file that precludes repeat
of individual passwords for at least five generations of password
selections. A maximum of five grace logins shall be permitted for
maintenance or operator privilege with expired passwords to prevent the
password expiration feature from impairing WAAS maintenance or
operation. A maximum of three grace logins shall be permitted for
administrator privilege users with expired logins. *The period is
expected to be determined by OSPs. The HFWG will determine the OSP
settings.*

###### Unsuccessful Login

WAAS critical subsystem workstations shall automatically block login to
a particular account for a minimum of 20 minutes after a maximum of
three consecutive unsuccessful login attempts and shall provide
notification to the WAAS O&M.

###### Logoff

WAAS critical subsystem workstations shall automatically logoff
maintainers, administrators, or O&M operators after predetermined
intervals of inactivity. WAAS critical subsystem workstations shall
require re-authentication after a minimum period terminal inactivity.
WAAS critical subsystem workstations shall automatically logoff the user
after a maximum period of inactivity and shall provide notification to
the O&M workstation. *(The periods will be determined by OSPs. The HFWG
will determine the OSP settings.)*

###### Encrypted Password Storage and Transmittal

WAAS critical subsystem workstation passwords shall only be stored or
transmitted on the network in an encrypted format. *No change intended,
WAAS currently uses the AIX password encryption to perform this
function. AIX password encryption is considered sufficient.*

###### Account Privilege Restrictions

Account privileges shall be limited to only those functions provided by
the WAAS application software. *No change intended.*

##### Copying, Moving, Loading, and Downloading of Files

All copying, moving, altering, loading, or downloading of files on all
WAAS critical subsystem workstations shall be restricted to only those
functions performed under the control of the WAAS application software.
*No change intended.*

###### Loading and Downloading of WAAS Application Software

Loading of application software or any other type of file for WAAS
critical subsystem workstations shall only be permitted by downloads
from the O&M under the control of the WAAS application software or
directly from the AOS-certified WAAS baseline & software distribution
CD-ROM under the control of the boot scripts on those CD-ROMs. *No
change intended.*

###### Application Software File Integrity Checks at Start up

The initialization software on WAAS critical subsystem workstations
shall verify the integrity of the application software files by
computing and validating CRCs for each of the necessary files prior to
starting the remaining application software. *No change intended.*

###### O&M External File Integrity Checks

The O&M subsystems shall perform file CRC integrity checks on all files
loaded onto the O&M. No other mechanisms shall be provided to introduce
new files onto the WAAS O&M. *No change intended. Application to
application file transfers are not considered external files.*

###### Updating of Software Versions

All WAAS subsystem workstations shall pass through verification mode
prior to being returned to operational service after a new executable
software version has been activated. *No change intended. Updating
immediate parameter files does not require verification.*

###### O&M Software Version Displays

The O&M subsystems shall display the software version information for
all critical WAAS subsystems to the WAAS operators. *The WAAS operators
will use the version information to ensure the proper version of
software is executing on a subsystem prior to returning the subsystem to
service. No change intended.*

##### Operator Inadvertent Action Safeguards 

The O&M subsystems shall require the controlling operator to complete
confirmation dialogs acknowledging potential system degradation prior to
performing operator actions that could potentially degrade WAAS user
service. *No change intended.*

###### Redundancy of System Status Alerts and Displays

Status displays and alerts shall be provided at both the controlling O&M
and at the monitoring O&Ms. *No change intended.*

##### Message Center Processor (MCP) Security

MCP computer security will be in accordance with AOS-TBD MCP Security
Requirements. *No change intended.*

#### Network Security

*WAAS uses network security mechanisms to prevent unauthorized access to
the WAAS network*.

##### Independent Networks

The WAAS shall use two physically independent wide area networks for
communication between the WAAS critical subsystems. All critical data
shall be sent on both networks. Independence is defined to mean; 1) two
complete sets of WAAS TCS equipment, 2) no connections between those
networks, and 3) the diversity and independence that is achieved by the
FAA-provided point-to-point telecommunications circuits. *No change
intended.*

##### Point-to-Point Connectivity

The WAAS critical subsystem routers shall only be configured to utilize
dedicated point-to-point connections. *No change intended. Security
reviewers need to be aware of this very important security feature
without specifying PPP at the A-spec level.*

##### FOC Backbone Network Intrusion Detection & Firewalls

The FOC WAAS shall provide network intrusion detection and firewall
capabilities at the backbone interface. The WAAS shall detect
unauthorized attempts to access the WAAS networks and shall only permit
authorized WAAS traffic to pass through the backbone routers. The WAAS
O&M shall be notified of all unauthorized attempts to access the WAAS
backbone network at the event level. Authorized traffic is defined to be
packets with the expected source IP subnet address for that particular
communications circuit.

##### Encryption of the FOC Backbone Networks

The FOC WAAS shall encrypt the message traffic sent via the backbone
network communications lines. *This is the FOC requirement to encrypt
the backbone. The preferred alternative for encrypting the WAAS backbone
network is to have secure virtual private service used on all
point-to-point connections provided via the FAA FTI contract.*

##### Backbone Router Security Configuration Protection

The FOC WAAS backbone router security configuration shall be protected
from unauthorized configuration changes. The WAAS O&M shall be notified
for all access to the WAAS backbone routers. *This is a new FOC
requirement if we are putting a lot of security into the routers then
the routers themselves must have good security*

###### Encryption Key Distribution Fail-Soft Capability

The encryption implementation for the WAAS networks shall be designed
such that problems with the distribution of the encryption keys do not
result in the loss of communications between critical WAAS subsystems.

##### WAAS Application Communication Protocol

All WAAS software application level communications between the WAAS
critical subsystem workstations shall be accomplished using a private
application level real time communication protocol. *WAAS software
application level communications does not apply to the traffic using
standard protocols such as Network Time Protocol (NTP) and Simple
Network Management Protocol (SNMP)*. *Intent is to replace RPC with WAAS
application O&M commands. This may result in the loss of occasional
remote maintenance via RPC in place for IOC.*

###### WAAS Communication Protocol Message Validation

All WAAS communications protocol messages shall be protected by a time
stamp and a 32-bit message CRC inclusive of the time stamp computed
using a 32-bit seed value that is not part of the message contents. *No
change intended.*

###### Notification of Failed Commands

The WAAS O&M shall be notified of unsuccessful completion of operator
commands. *No change intended*

##### WAAS External Interface External Security Requirements

The WAAS External Interface (WEI) and O&M External Interface (OEI) shall
use a one-way cable to prevent any access into the WAAS network from the
external interface. The switches and or routers of the WAAS WEI
equipment shall have a data filtering capability to prevent unintended
data from being sent to unauthorized users. *No change intended.*

#### Collection of Security Audit Data

The WAAS shall collect security log data. The data files shall be stored
on the hard drive for not less than six months. The old files shall be
written to the WAAS recording device whenever a new file is created.

##### Logon and Logoff Records

The security audit data shall contain records of all WAAS logins,
logouts, and functional assignment changes. The records shall contain
account name, subsystem name, time, and the login, logout, or functional
change assignment. *New audit data requirement.*

##### Account Changes

The security audit data shall contain records of all WAAS workstation
account changes. The account records shall contain the account name,
subsystem name, administrator name, time, and account change type, i.e.,
account created, deleted, password updated, privileges changes. *New
requirement.*

##### Intrusion Detection Records

The security audit data shall contain records of any detected network
intrusions, failed login attempts for WAAS critical subsystem
workstations, or backbone router access. *WEI and OEI equipment outside
of the one-way cable protection device are not covered by this
requirement*. *New requirement.*

##### Configuration Change Records

The security audit data shall contain records of all O&M-initiated
critical subsystem workstation software version downloads, immediate
parameter downloads, or router configuration downloads. *New
requirement.*

##### Periodic Configuration Check Records 

The security audit data shall contain periodic records of the current
running version information for all critical WAAS subsystems software
version, immediate parameter versions, and router configuration
versions. The periodicity of the checking and recording of this
information shall not be less than daily. *New requirement.*

##### Consolidation of Attack Data into Recording Events

Security audit data resulting from a flooding type of attack shall be
recorded as a small number events and durations to avoid flooding of the
audit recording capability from being overwhelmed. *New requirement.*

##### Download of Audit Records 

The WAAS O&M shall provide the capability to download individual or
groups of audit record files from the local O&M workstation. *New
requirement.*

#  Quality Assurance

## Test Program 

*The WAAS will utilize developed software with NDI hardware. Quality
assurance provisions apply to hardware and to software designated as a
Computer Software Configuration Item (CSCI) and non-Computer Software
(firmware) embedded in hardware*.

### WAAS Test Program

A WAAS test program, conducted in accordance with the FAA Acquisition
Management System. Details for FAA Test and Evaluation can be found on
the internet at fast.faa.gov. The test program for Developmental Test
and Evaluation (DT&E) and Production Acceptance Test and Evaluation
(PAT&E), covering both the development and productions phases, shall
verify that the requirements of Section 3 of this Specification have
been satisfied. All requirements in section 3 of the specification shall
be included in the VRTM. *Requirements satisfied during the IOC phase of
the program do not need to be reverified.* *The contractor will provide
analysis indicating which requirements must be verified for FOC in the
MITP.*

#### Software Qualification

Software qualification requirements shall be in accord with FAA-STD-026
and RTCA/DO-178B.

#### Hardware Quality Assurance

Hardware quality assurance provisions shall be in accord with
ANSI/ISO/ASQ Q9001-2000, Quality Management Systems Requirements and
DID-FAA-QA-002, Quality System Plan***.***

#### Verification Requirements Traceability Matrix (VRTM)

The VRTM in the Master Integrated Test Plan (MITP) shall specify the
WAAS testing requirements. The MITP VRTM shall be based on the VRTM in
this Specification (Appendix A), the contract, and subordinate
requirements. The MITP VRTM shall also include the test ID for each
requirement and a column showing whether each requirement was satisfied
during the LNAV/VNAV phase of WAAS and/or whether it will be verified
during FOC WAAS.

#### Types of Testing

*Two types of testing, DT&E and PAT&E, will be used to verify that the
WAAS has satisfied the requirements of this specification*.

##### Development Test and Evaluation (DT&E)

###### Engineering Evaluation and Test Requirements

The Engineering Evaluation and Test Requirements Program shall include:
DT&E at the contractor\'s facilities, DT&E on a specified portion of the
WAAS, and DT&E testing on the complete WAAS.

###### Qualification Testing

Design Qualification Testing (DQT) shall be conducted as part of DT&E
testing to establish software qualification and to verify that the
performance and functional requirements of Section 3 have been
satisfied. *Hardware qualification testing is not required for NDI
hardware*.

###### Formal Test Verification of Performance

Formal verification of performance requirements shall be conducted as
part of qualification testing to validate the performance requirements
of Section 3.2 by testing and demonstration of the integrity and
accuracy requirements, and by demonstration and analysis of the
availability requirements.

##### Production Acceptance Test and Evaluation (PAT&E)

PAT&E shall consist of Factory Acceptance Testing (FAT) and Site
Acceptance Testing (SAT) used to verify that the manufacture,
installation and checkout of the WAAS components satisfies the Section
3.0 requirement of this Specification.

## General Testing Requirements

The formal test and evaluation program shall satisfy the following
general requirements. *Formal testing is defined to be any testing for
which there is a deliverable.*

### FAA Witnessing of Testing 

The FAA shall have the right to witness and approve all formal testing.

### Quality Assurance Program

#### Quality Assurance Program Guidance

The quality assurance program shall meet the requirements of
ANSI/ISO/ASQ Q9001-2000, Quality Management Systems Requirements,
DID-FAA-QA-002, Quality System Plan, FAA-STD-026a, Software Development
for the NAS, and DID-FAA-026-023(SQAP). However, the contractor may
include the content of FAA-STD-026a/DID-FAA-026-023 in the QSP as a
separate section or appendix.

#### Hardware and Software Quality Control Systems

The quality program shall include a hardware quality control system to
monitor all materials and equipment and a software quality control
system to monitor all software including non-CSCIs (firmware).

#### Test Conduct

All formal testing shall be conducted in accordance with the quality
assurance program.

### Configuration Management 

All formal testing shall be performed under the configuration management
requirements of FAA-STD-021, Configuration Management, MIL-STD-973,
Notice 1, Configuration Management, and FAA Order 1800.8F, NAS
Configuration Management.

### Regression Testing

Regression testing shall be performed as required by individual test
plans and the configuration management requirements.

## Special Tests and Examination Requirements

### Use of Simulation

All formal testing shall be performed using WAAS hardware and software
except where simulation is required during DT&E testing. Any testing
using simulation will be justified in the MITP and confirmed during DT&E
on the WAAS.

### Test Samples

No special selection or pre-screening of hardware shall be allowed
unless it is formally a part of the hardware\'s specification and is
also approved by the government.

### Interruption of Tests

Formal tests shall not be interrupted once a test has started except
where noted in the approved test procedures.

### Failure Reporting and Tracking

All failures that occur during formal testing shall be documented,
tracked, and resolved.

### Qualification of Test Environment

All simulations, operating systems, test scripts, configuration
management tools, test hardware, analysis tools, Computer Aided Software
Engineering (CASE) tools, and any other support software and hardware
used to support formal testing shall undergo qualification testing and
be under formal configuration management. The qualification will
establish that the support item reliably meets the requirements of its
intended function, that it is installed properly, that it is properly
documented, and that it is under configuration control.

## User Service Performance Testing and Analysis

The following analyses are required to establish the levels of User
service performance for the interim deliveries and to show satisfaction
of the FOC WAAS service performance requirements. These tests and
analyses are in addition to or in conjunction with the normal test and
integration program required by the SOW.

### P(HMI) Analysis

The WAAS P(HMI) Analyses shall be updated as appropriate using the
established WIPP processes.

### Reserved

A.  []{#__RefHeading___Toc55813870 .anchor}FOC Verification Requirements
    Test Matrix

The following VRTM provides the method of test, the level of testing and
the test category. Every requirement in section 3 of FAA-E-2976 is
included in this matrix. However, some requirements have been verified
during the LNAV/VNAV phase of WAAS and do not need to be reverified.
*The WAAS Contractor will provide analysis showing which FOC
requirements must be verified.*

<table>
<colgroup>
<col style="width: 46%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 5%" />
</colgroup>
<thead>
<tr class="header">
<th colspan="11"><strong>Verification Requirements Traceability Matrix
(VRTM)</strong></th>
</tr>
<tr class="odd">
<th></th>
<th colspan="5"><strong>Method</strong></th>
<th colspan="3"><strong>Level</strong></th>
<th colspan="2"><strong>Category</strong></th>
</tr>
<tr class="header">
<th><strong>Paragraph</strong></th>
<th><blockquote>
<p><strong>N/A</strong></p>
</blockquote></th>
<th><blockquote>
<p><strong>Inspection</strong></p>
</blockquote></th>
<th><blockquote>
<p><strong>Analysis / Simulation</strong></p>
</blockquote></th>
<th><blockquote>
<p><strong>Demonst.</strong></p>
</blockquote></th>
<th><blockquote>
<p><strong>Test</strong></p>
</blockquote></th>
<th><blockquote>
<p><strong>Unit</strong></p>
</blockquote></th>
<th><blockquote>
<p><strong>Subsys</strong></p>
</blockquote></th>
<th><blockquote>
<p><strong>WAAS</strong></p>
</blockquote></th>
<th><blockquote>
<p><strong>DT&amp;E</strong></p>
</blockquote></th>
<th><blockquote>
<p><strong>PAT&amp;E</strong></p>
</blockquote></th>
</tr>
</thead>
<tbody>
<tr class="odd">
<td>3 Requirements</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td>3.1 WAAS Definition</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="odd">
<td>3.1.1 WAAS Objectives</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td>3.1.2 Reserved</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="odd">
<td>3.1.2.1 Continuous Service Mode</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td>3.1.2.2 Military Emergency Mode</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="odd">
<td>3.1.3 WAAS Functions</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td>3.1.3.1 WAAS Message Broadcast and Ranging</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
<tr class="odd">
<td>3.1.3.1.1 Message Format</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
<tr class="even">
<td>3.1.3.1.2 Repetition of GPS/WAAS SIS Alarm Messages</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
<tr class="odd">
<td>3.1.3.1.3 Message Broadcast and Ranging</td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
<tr class="even">
<td>3.1.3.1.4 Monitor WAAS Signal Quality</td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
<tr class="odd">
<td>3.1.3.1.5 Update Intervals</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
<tr class="even">
<td>3.1.3.1.5.1 PRN and IGP Mask Update</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
<tr class="odd">
<td>3.1.3.1.6 Test</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
<tr class="even">
<td>3.1.3.2 WAAS Operations and Maintenance (O&amp;M)</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td>X</td>
<td>X</td>
</tr>
<tr class="odd">
<td>3.1.3.2.1 Operations and Maintenance Data Collection</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
</tr>
<tr class="even">
<td>3.1.3.2.1.1 WAAS Configuration Data</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td>X</td>
<td>X</td>
</tr>
<tr class="odd">
<td>3.1.3.2.1.2 WAAS Status Data</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td>X</td>
<td>X</td>
</tr>
<tr class="even">
<td>3.1.3.2.1.3 WAAS Performance Data</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td>X</td>
<td>X</td>
</tr>
<tr class="odd">
<td>3.1.3.2.1.4 Manual Inputs</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td>X</td>
<td>X</td>
<td>X</td>
</tr>
<tr class="even">
<td>3.1.3.2.2 System Monitor and Control</td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
<tr class="odd">
<td>3.1.3.2.2.1 Off-Line Monitoring</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
<tr class="even">
<td>3.1.3.2.2.2 Processing</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td>X</td>
<td>X</td>
<td>X</td>
<td>X</td>
</tr>
<tr class="odd">
<td>3.1.3.2.2.2.1 Data Presentation</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td>X</td>
<td>X</td>
<td>X</td>
<td>X</td>
</tr>
<tr class="even">
<td>3.1.3.2.2.3 Reserved</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="odd">
<td>3.1.3.2.2.4 Reserved</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td>3.1.3.2.2.4.1 Reserved</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="odd">
<td>3.1.3.2.2.4.2 Reserved</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td>3.1.3.2.2.4.3 Reserved</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="odd">
<td>3.1.3.2.2.5 Reserved</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td>3.1.3.2.3 Corrective Maintenance</td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
<tr class="odd">
<td>3.1.3.2.3.1 Reserved</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td>3.1.3.2.3.2 Reserved</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="odd">
<td>3.1.3.2.3.3 Reserved</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td>3.1.3.2.3.4 Reserved</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="odd">
<td>3.1.3.2.3.5 Reserved</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td>3.1.3.2.3.6 Reserved</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="odd">
<td>3.1.3.2.3.7 Reserved</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td>3.1.3.2.3.7.1 Reserved</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="odd">
<td>3.1.3.2.3.7.2 Reserved</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td>3.1.3.2.4 Reserved</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="odd">
<td>3.1.3.2.4.1 Reserved</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td>3.2 System Characteristics</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="odd">
<td>3.2.1 User Service Performance Requirements</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
<tr class="even">
<td>3.2.1.1 LNAV Service</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="odd">
<td>3.2.1.1.1 LNAV Service Areas</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td>3.2.1.1.1.1 LNAV CONUS Service Volume</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="odd">
<td>3.2.1.1.1.2 LNAV Alaska Service Volume</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td>3.2.1.1.1.3 En Route Outside of CONUS (OCONUS) Service Volume</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="odd">
<td>3.2.1.1.2 LNAV Accuracy</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
<tr class="even">
<td>3.2.1.1.3 LNAV Availability</td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
<tr class="odd">
<td>3.2.1.1.3.1 LNAV CONUS Availability</td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
<tr class="even">
<td>3.2.1.1.3.2 LNAV Alaska Availability</td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
<tr class="odd">
<td>3.2.1.1.3.3 En Route OCONUS Availability</td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
<tr class="even">
<td>3.2.1.1.4 Reserved</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="odd">
<td>3.2.1.1.5 LNAV Integrity</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td>3.2.1.1.5.1 LNAV Probability of Hazardously Misleading Information
(P(HMI))</td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
<tr class="odd">
<td>3.2.1.1.5.2 LNAV WAAS Corrected Accuracy</td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
<tr class="even">
<td>3.2.1.1.5.3 GEO User Range Accuracy (URA)</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
<tr class="odd">
<td>3.2.1.1.5.4 WAAS Network Time to GPS Network Time Maximum
Offset</td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
<tr class="even">
<td>3.2.1.2 LPV Service</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="odd">
<td>3.2.1.2.1 LPV Service Areas</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td>3.2.1.2.1.1 LPV CONUS Service Volume</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="odd">
<td>3.2.1.2.1.2 LPV Alaska Service Volume</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td>3.2.1.2.2 LPV Accuracy</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="odd">
<td>3.2.1.2.2.1 CONUS LPV Horizontal Accuracy</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
<tr class="even">
<td>3.2.1.2.2.2 CONUS LPV Vertical Accuracy</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
<tr class="odd">
<td>3.2.1.2.3 LPV Availability</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td>3.2.1.2.3.1 LPV CONUS Availability</td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
<tr class="odd">
<td>3.2.1.2.3.2 LPV Alaska Availability</td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
<tr class="even">
<td>3.2.1.2.4 Reserved</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="odd">
<td>3.2.1.2.5 LPV Integrity</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td>3.2.1.2.5.1 LPV Probability of Hazardously Misleading Information
(P(HMI))</td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
<tr class="odd">
<td>3.2.1.3 Time to Alarm</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td>3.2.1.3.1 LPV Time to Alarm</td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
<tr class="odd">
<td>3.2.1.3.2 LNAV Time to Alarm</td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
<tr class="even">
<td>3.2.2 Processing Requirements</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="odd">
<td>3.2.2.1 System Capacity</td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td>X</td>
<td>X</td>
<td>X</td>
</tr>
<tr class="even">
<td>3.2.2.1.1 WAAS</td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td>X</td>
<td>X</td>
<td>X</td>
</tr>
<tr class="odd">
<td>3.2.2.2 Software Development</td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
<td></td>
</tr>
<tr class="even">
<td>3.2.2.2.1 Computer Resource Reserve Capacity</td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
<td></td>
</tr>
<tr class="odd">
<td>3.2.2.2.2 Computer Memory</td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
<td></td>
</tr>
<tr class="even">
<td>3.2.2.2.2.1 Volatile Memory</td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
<td></td>
</tr>
<tr class="odd">
<td>3.2.2.2.2.2 Non-Volatile Memory</td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
<td></td>
</tr>
<tr class="even">
<td>3.2.2.2.3 Processing Speed</td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
<td></td>
</tr>
<tr class="odd">
<td>3.2.2.3 Antenna Phase Center Location Requirements</td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
</tr>
<tr class="even">
<td>3.2.2.3.1 Local Monument Location Requirements</td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
</tr>
<tr class="odd">
<td>3.2.2.4 Signal Processing Requirements</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td>3.2.2.4.1 Sensitivity and Dynamic Range</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="odd">
<td>3.2.2.4.1.1 L1-C/A Signal Processing Requirements</td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
</tr>
<tr class="even">
<td>3.2.2.4.1.2 L2-P(Y) Signal Processing Requirements</td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
</tr>
<tr class="odd">
<td>3.2.2.4.2 RF Interference Rejection</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td>3.2.2.4.2.1 In-Band</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="odd">
<td>3.2.2.4.2.1.1 In-Band Rejection for CW and Noise Interference</td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
</tr>
<tr class="even">
<td>3.2.2.4.2.1.2 In-Band Rejection for Pulsed Interference</td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
</tr>
<tr class="odd">
<td>3.2.2.4.2.2 Out-Of-Band</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td>3.2.2.4.2.2.1 Out-Of-Band Rejection for CW Interference</td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
</tr>
<tr class="odd">
<td>3.2.2.4.2.3 GEO Uplink Protection</td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td></td>
</tr>
<tr class="even">
<td>3.2.2.4.2.3.1 Interference Protection</td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td></td>
</tr>
<tr class="odd">
<td>3.2.2.4.2.3.2 HMI Protection</td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td></td>
</tr>
<tr class="even">
<td>3.2.3 Interface Requirements</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="odd">
<td>3.2.3.1 External Interface Requirements</td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td>X</td>
<td>X</td>
</tr>
<tr class="even">
<td>3.2.3.1.1 GPS Satellites to the WAAS</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
</tr>
<tr class="odd">
<td>3.2.3.1.2 WAAS to User</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
<tr class="even">
<td>3.2.3.1.3 WAAS External Interface</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td></td>
</tr>
<tr class="odd">
<td>3.2.3.1.4 NAS to WAAS</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td>X</td>
<td>X</td>
</tr>
<tr class="even">
<td>3.2.3.2 Internal Interface Requirements</td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
</tr>
<tr class="odd">
<td>3.2.4 Ground Based Electronic Equipment</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td>3.2.4.1 Electrical</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="odd">
<td>3.2.4.1.1 Power Factor</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
</tr>
<tr class="even">
<td>3.2.4.1.2 Inrush Current</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
</tr>
<tr class="odd">
<td>3.2.4.1.3 Harmonics</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
</tr>
<tr class="even">
<td>3.2.4.1.4 Grounding and Bonding</td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
</tr>
<tr class="odd">
<td>3.2.4.2 Transformer Isolation of Non-Switching DC Power
Supplies</td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
</tr>
<tr class="even">
<td>3.2.4.3 Mechanical Installation</td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
</tr>
<tr class="odd">
<td>3.2.4.3.1 Equipment Racks</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td>3.2.4.3.1.1 Pullout Drawers</td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
</tr>
<tr class="odd">
<td>3.2.4.3.1.2 Rack Panels</td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
</tr>
<tr class="even">
<td>3.2.4.4 Moisture</td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
</tr>
<tr class="odd">
<td>3.2.4.5 Accessibility</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td>3.2.4.5.1 General</td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
</tr>
<tr class="odd">
<td>3.2.4.5.2 Line Replaceable Units (LRUs)</td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
</tr>
<tr class="even">
<td>3.2.4.6 Interior Equipment Design Ranges</td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
</tr>
<tr class="odd">
<td>3.2.4.6.1 Indoor Operating Environments</td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
</tr>
<tr class="even">
<td>3.2.4.7 Exterior Equipment Design Ranges</td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
</tr>
<tr class="odd">
<td>3.2.4.7.1 Outdoor Operating Environmental Conditions</td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
</tr>
<tr class="even">
<td>3.2.4.8 Seismic Zone Design</td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
</tr>
<tr class="odd">
<td>3.2.4.9 Bar Coding</td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
</tr>
<tr class="even">
<td>3.2.5 System Quality Factors</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="odd">
<td>3.2.5.1 Reliability</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td>3.2.5.1.1 WAAS Reliability and Redundancy</td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td>X</td>
<td>X</td>
<td>X</td>
</tr>
<tr class="odd">
<td>3.2.5.1.2 Mean Time Between Failure (MTBF)</td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
</tr>
<tr class="even">
<td>3.2.5.1.3 WAAS Reliability and Availability</td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td>X</td>
<td></td>
<td>X</td>
</tr>
<tr class="odd">
<td>3.2.5.2 Maintainability</td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
</tr>
<tr class="even">
<td>3.2.5.2.1 Periodic Maintenance Interval</td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td>X</td>
<td></td>
<td>X</td>
</tr>
<tr class="odd">
<td>3.2.5.2.2 Periodic Maintenance Service Interruptions</td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td>X</td>
<td></td>
<td>X</td>
</tr>
<tr class="even">
<td>3.2.5.2.3 Corrective Maintenance Service Interruptions</td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td>X</td>
<td></td>
<td>X</td>
</tr>
<tr class="odd">
<td>3.2.5.2.4 Redundant Equipment Switching</td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td>X</td>
<td></td>
<td>X</td>
</tr>
<tr class="even">
<td>3.2.5.2.5 Fail-Safe, Fail-Soft Operation</td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td>X</td>
<td>X</td>
<td>X</td>
</tr>
<tr class="odd">
<td>3.2.6 Human Engineering</td>
<td></td>
<td></td>
<td>x</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
<td>X</td>
</tr>
<tr class="even">
<td>3.2.7 System Security</td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td>X</td>
<td>X</td>
<td>X</td>
</tr>
<tr class="odd">
<td>3.2.7.1 Physical Security</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td>3.2.7.1.1 Physical Access Security</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
<td>X</td>
</tr>
<tr class="odd">
<td>3.2.7.1.2 Physical Access Security of Leased GEO<br />
Uplink Facilities</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
</tr>
<tr class="even">
<td>3.2.7.1.3 Physical Access Security of International WAAS Reference
Stations</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
</tr>
<tr class="odd">
<td>3.2.7.2 Computer Security</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td>3.2.7.2.1 Isolation of Critical WAAS Assets From<br />
Non-WAAS Subsystems</td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
</tr>
<tr class="odd">
<td>3.2.7.2.1.1 WAAS Only Use</td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td>X</td>
<td>X</td>
</tr>
<tr class="even">
<td>3.2.7.2.1.2 Critical Subsystem Interface Isolation</td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td>X</td>
<td>X</td>
</tr>
<tr class="odd">
<td>3.2.7.2.1.2.1 GUS M&amp;C Interface Isolation</td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td>X</td>
</tr>
<tr class="even">
<td>3.2.7.2.2 Boot Only To WAAS Application</td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
<tr class="odd">
<td>3.2.7.2.2.1 Baseline Configuration of WAAS Workstations</td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
<tr class="even">
<td>3.2.7.2.3 Login Only Via WAAS Application</td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
<tr class="odd">
<td>3.2.7.2.3.1 Access to Operating System</td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
<tr class="even">
<td>3.2.7.2.3.2 Login Accounts</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td>X</td>
<td>X</td>
</tr>
<tr class="odd">
<td>3.2.7.2.3.3 Passwords</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td>X</td>
<td>X</td>
</tr>
<tr class="even">
<td>3.2.7.2.3.4 Password Expiration</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
<tr class="odd">
<td>3.2.7.2.3.5 Unsuccessful Login</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
<tr class="even">
<td>3.2.7.2.3.5.1 Logoff</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
<tr class="odd">
<td>3.2.7.2.3.6 Encrypted Password Storage and Transmittal</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
<tr class="even">
<td>3.2.7.2.3.7 Account Privilege Restrictions</td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
<tr class="odd">
<td>3.2.7.2.4 Copying, Moving, Loading, and Downloading of Files</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
<tr class="even">
<td>3.2.7.2.4.1 Loading and Downloading of WAAS Application
Software</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
<tr class="odd">
<td>3.2.7.2.4.2 Application Software File Integrity Checks<br />
at Start up</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
<tr class="even">
<td>3.2.7.2.4.3 O&amp;M External File Integrity Checks</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
<tr class="odd">
<td>3.2.7.2.4.4 Updating of Software Versions</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
<tr class="even">
<td>3.2.7.2.4.5 O&amp;M Software Version Displays</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
<tr class="odd">
<td>3.2.7.2.5 Operator Inadvertent Action Safeguards</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
<tr class="even">
<td>3.2.7.2.5.1 Redundancy of System Status Alerts and Displays</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
<tr class="odd">
<td>3.2.7.2.6 Message Center Processor<br />
(MCP) Security</td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
</tr>
<tr class="even">
<td>3.2.7.3 Network Security</td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="odd">
<td>3.2.7.3.1 Independent Networks</td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td>X</td>
</tr>
<tr class="even">
<td>3.2.7.3.2 Point to Point Connectivity</td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
</tr>
<tr class="odd">
<td>3.2.7.3.3 FOC Backbone Network Intrusion<br />
Detection &amp; Firewalls</td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
<tr class="even">
<td>3.2.7.3.4 Encryption of the FOC Backbone Networks</td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
<tr class="odd">
<td>3.2.7.3.5 Backbone Router Security Configuration Protection</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td>X</td>
<td>X</td>
</tr>
<tr class="even">
<td>3.2.7.3.5.1 Encryption Key Distribution Fail-Soft Capability</td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td>X</td>
<td>X</td>
</tr>
<tr class="odd">
<td>3.2.7.3.6 WAAS Application Communication Protocol</td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
<tr class="even">
<td>3.2.7.3.6.1 WAAS Communication Protocol Message Validation</td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
<tr class="odd">
<td>3.2.7.3.6.2 Notification of Failed Commands</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
<tr class="even">
<td>3.2.7.3.7 WAAS External Interface External Security
Requirements</td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
</tr>
<tr class="odd">
<td>3.2.7.4 Collection of Security Audit Data</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
<tr class="even">
<td>3.2.7.4.1 Logon and Logoff Records</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
<tr class="odd">
<td>3.2.7.4.2 Account Changes</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
<tr class="even">
<td>3.2.7.4.3 Intrusion Detection Records</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
<tr class="odd">
<td>3.2.7.4.4 Configuration Change Records</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
<tr class="even">
<td>3.2.7.4.5 Periodic Configuration Check Records</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
<tr class="odd">
<td>3.2.7.4.6 Consolidation of Attack Data Into Recording Events</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
<tr class="even">
<td>3.2.7.4.7 Download of Audit Records</td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td>X</td>
<td></td>
</tr>
</tbody>
</table>