TECHNICAL PRODUCT DATA SHEETL1A
GPS Active Antenna

DESCRIPTION
The L1A is a high performance L1 GPS active antenna
suited for applications requiring low noise and excellent
gain. The product functions to specifications over theentire operational voltage and temperature range at aminimal current draw. The product includes highfrequency selectivity to avoid interference with othernearby transmitters.

FEATURES






Outstanding Noise Figure < 1dB
Excellent Typical Gain of 33dB
Wide Voltage Range of 3VDC to 16VDC
Tiny Current Draw < 20mA
Bottom or Pole Mount
Multiple Connector Options

OPTIONS
The L1A comes with many available options to meet
specific needs. Please contact GPS Source via phone,email, or visit the website for further information on
product options and specifications.

L1A Data Sheet
059-FAN-AAQ-XCX-RXZ-006
01/15/2020
www.gpssource.com

AS9100 and ISO 9001 Compliant Company

1

L1A Specifications
Table 1-1.

Electrical Specifications

Operating Temperature -40°C to 85°C
ParameterConditions

Min

TypMaxUnits

Frequency Range (Passband)

Ant: Output, VDC = 3V to 16V, Output = 50

1560

1575

1590

MHzOut Impedance
GainElement

Ant Element

LNA

LNA, VDC = 3V to 16V, Output = 50

Output SWR

VDC = 3V to 16V, Output = 50

Noise Figure

VDC = 3V to 16V, Output = 50

Required DC Input Voltage

DC Input on RF Output Center Conductor

LNA Current

Output = 50, 5V

Rejection+/-50MHz > 24dB+/-100MHz > 35dB

Polarization

33.5dBiC

3335dB

2.5:1—1dB

16

VDC

1720mA-22-24-25-34-35-37

32

0.8
3

Ant: Output, VDC = 3V to 16V, Output = 50
Right Hand Circular

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50

L1A Data Sheet
059-FAN-AAQ-XCX-RXZ-006
01/15/2020

dB

2

Performance Data

2.1

Far Field Patterns — 1575MHz
Figure 2-1.

Far Field Plots Rotating Linear
E Cut

Figure 2-2.

H Cut

Far Field Plots Azimuth Cuts

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L1A Data Sheet
059-FAN-AAQ-XCX-RXZ-006
01/15/2020

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2.2

LNA Frequency Response
Figure 2-3.

LNA Frequency Response

LNA Frequency Response
4030Ga in(dB)20100-1 0-2 0-3 01968

1914

1860

1806

17531699

1645

1591

1538

1484

1430

1376

1323

1269

1215

1161

1108

1054

1000

-4 0

Frequency(MHz)Note:

Frequency selectivity of antenna element adds additional out of band rejection.

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L1A Data Sheet
059-FAN-AAQ-XCX-RXZ-006
01/15/2020

3

Product Options
Table 3-1.

L1A Available Options

Available Options
Power Source Voltage

Voltage Input

TypeDC 3VDC to 16VDC

Input on Center pin of RF Connector.

TypeLimitations

NRF Connector

SMA
TNC

RF Mounting

Figure 3-1.

4FemaleFemaleMaleFemale

L Bracket Pole Mount Hardware

N/AN/AN/A
See Figure 3-1.

L Bracket Pole Mount Hardware

Product Code Decoder
L 1 A - PM - X XAntenna
L1A = Standard L1 GPS
Ampliﬁed Active AntennaBlank
PMNotes:

1.
2.
3.

Mount
= No Pole Mount= Pole Mount

Connector Option
NF = N ... Female
SF = SMA.... Female
SM = SMA .... Male
TNC = TNC .... Female

Contact GPS Source for additional connector options.
This product is available only in black.
To have product/part codes customized to meet exact needs, contact GPS Source at GPSS-Sales@gd-ms.com orvisit the website at www.gpssource.com.

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L1A Data Sheet
059-FAN-AAQ-XCX-RXZ-006
01/15/2020

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5Mechanical Drawing

5.1

L1A GPS Active Antenna

2.330
4X Ø.192 THRU
MOUNTING HOLE LOCATIONS
Ø1.5002.330

CUT OUT FOR CONNECTOR
AND CONNECTOR CABLE
CLEARANCEPATTERN FOR ANTENNA MOUNTING

R.820 TYP

3.450

0.649
4X Ø.192 THRU
Ø .406
82°

2.333

3.450

1.166

1.326

1.166
2.333

Notes 1. SHOWN WITH:► TYPE N -– FEMALE RF CONNECTOR
2. AVAILABLE CONNECTOR OPTIONS► SMA – FEMALE► TNC – FEMALE
8/12/2010 Revision 004
GPS Source Part No.

L1A
FAN-AAQ-XCX-RXZ
Description

L1A ANTENNAANTENNA SMA(F)
N(F)
L1A
G = 33dB, NF = 1.2 dB 3-16VDC

FinishSize

N/AC

Mass

Tolerances

0.25lbs

LinearAngular.X= ±0.100.XX = ±0.050.XXX = ±0.005

±1°
RADII
See Linear

3rd Angle Projection

Material

SEE BOM
Dimensions are in inches unless otherwise specified. IAW ASME Y14.5M - 1994

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L1A Data Sheet
059-FAN-AAQ-XCX-RXZ-006
01/15/2020

L1A Data Sheet
059-FAN-AAQ-XCX-RXZ-006
Page 7 of 7, 01/15/2020

2121 Executive Cir., Ste 100
Colorado Springs, CO 80906
Phone: (+1)(719) 421.7300
Toll Free: (+1)(866) 289.4777
GPSS-Sales@gd-ms.com
www.gpssource.com
AS9100 and ISO 9001 Compliant CompanyX X© 2014 GPS Source, Inc. All rights reserved.

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