Date
January 18, 2021

Under Development

X-band GaN 40W/60W BUC
RF Frequency: 7.9 to 8.4 GHz(40W model) Model No. NJT5873 series(60W model) Model No. NJT5874 series
6.95 GHzLO Frequency:
IF Frequency:
950 to 1,450 MHz
Saturated Output Power:+46.0 dBm (40W) / +47.8 dBm (60W)
RF Input Interface:N-type, Female Connector
Power Requirement: DC +36-60V, MS Connector Input/ AC 100-240V, MS Connector Input
M&C Option:
Parallel I/O Interface
RS-422/485 Interface (OpenBMIP Protocol)
Ethernet Interface (OpenBMIP Protocol)

Copyright©
New Japan Radio Co., Ltd.
Microwave Division-Notice of Proprietary InformationThis document and its contents are proprietary to New Japan Radio Co., Ltd.
This publication and its contents may not be reproduced or distributed for any other purpose
without the written permission of New Japan Radio Co., Ltd.
Those specifications listed in this document are subject to change at any time, without notice.

New Japan Radio Co., Ltd.
Microwave Division

Title:
Preliminary Specification of NJT5873 & NJT5874 series
Reference No.:
PRD-NJT5873/74

Rev.:
00-05

Sheet:
1 / 13

Model Number Numbering System

Note: Ethernet M&C interface will be installed in pre-production and production units.

New Japan Radio Co., Ltd.
Microwave Division

Title:
Preliminary Specification of NJT5873 & NJT5874 series
Reference No.:
PRD-NJT5873/74

Rev.:
00-05

Sheet:
2

1. Electrical Specifications#ItemsSpecifications

1.1.

Output RF Frequency Range

7.9 to 8.4 GHz

1.2.

Input IF Frequency Range

950 to 1,450 MHz

1.3.

Maximum IF Input Level+13 dBm max.

(without damage)
1.4.

Conversion Type

Single, fixed L.O.

1.5.

L.O. Frequency

6.95 GHz

1.6.

Frequency Sense

Positive

1.7.

Output Power @ Saturation

1.8.

1.9.

(Psat)<60W Model>+47.8 dBm min. over temperature<40W Model>+46.0 dBm min. over temperature

Linear Gain
<60W Model>

74 dB nom., 70 dB min.

<40W Model>

72 dB nom., 68 dB min.

Gain Variation over Frequency

4 dBp-p max. over 500 MHz@ Fixed Temperature

2 dBp-p max. over 54 MHz

Gain Stability over Temperature

4 dBp-p max.

@ Fixed Frequency

2 dBp-p typ.

1.11.

ACPR

-30 dBc typ. @ Pout = Psat – 3dBm

1.12.

Requirement for External Reference

1.10.

[Frequency]

10 MHz (sine-wave)[Input Power]-5 to +5 dBm @ Input port

[Phase Noise]-120 dBc /Hz max. @ 100 Hz-130 dBc /Hz max. @ 1 kHz-140 dBc /Hz max. @ 10 kHz

1.13.

L.O. Phase Noise-63 dBc/Hz max. @ 100 Hz-73 dBc/Hz max. @ 1 kHz-83 dBc/Hz max. @ 10 kHz-93 dBc/Hz max. @ 100 kHz-103 dBc /Hz max. @ 1 MHz

1.14.

Spurious @ Pout = Psat – 3dBm[in band][in receive and][Out-of-band]-60 dBc max. @ 7.9 to 8.4 GHz *note1-20 dBm max. @ 7.25 to 7.75 GHz-60 dBc max.

1.15.

Receive Band Noise Density-85 dBm/Hz max. @ 7.25 to 7.75 GHz

1.16.

Transmit Band Noise Density-85 dBm/Hz max. @ 7.9 to 8.4 GHz

1.17.

Input Impedance

50 ohms nom

1.18.

Input V.S.W.R.

2 : 1 max.

Note1: Except AC and AC harmonics frequency spurious.

New Japan Radio Co., Ltd.
Microwave Division

Title:
Preliminary Specification of NJT5873 & NJT5874 series
Reference No.:
PRD-NJT5873/74

Rev.:
00-05

Sheet:
3

#Items

1.19.

Output V.S.W.R.

1.20.

Output Load V.S.W.R.

Specifications
1.5 : 1 max.

[Recommendation][Non Damage]

1.3 : 1 max.
2 : 1 max.
Caution: Not endure full reflection of output load

1.21.

Power Requirement
1. Voltage Range< DC Power Model>+48 VDC (+36 to +60 VDC)

< AC Power Model>

100 to 240 VAC- Target -2. Power Consumption

1.22.

< 60W / DC Power Model>

310 W max. @ Pout = +47.8 dBm< 60W / AC Power Model>

360 VA max. @ Pout = +47.8 dBm< 40W / DC Power Model>

220 W max. @ Pout = +46.0 dBm< 40W / AC Power Model>

260 VA max. @ Pout = +46.0 dBm

Mute

Shut off the HPA in case of L.O. unlocked, no 10 MHz
reference signal, or Over temperature.

1.23.

LED Indicator

GREEN: LO locked
RED: LO unlocked(or no 10 MHz reference signal)

1.24.

Power Requirement
1. Interface

RS-485/RS-422

Parallel I/O

Ethernet *note2

2. Functions< RS-422/485 Interface >[Protocol]

OpenBMIP[Monitor]

Tx Output Power / Temperature / Tx Status/ Alarm (Over temperature/ L.O. unlock/ Fan fault)[Control]Transmit On/Off / Step Attenuator< Parallel I/O Interface >[Monitor]

Summary Alarm (Normal: Close)[Control]Transmit On/Off (Close: On/ Open: Off)< Ethernet Interface >[Protocol]

OpenBMIP[Monitor]

Tx Output Power / Temperature / Tx Status/ Alarm (Over temperature/ L.O. unlock/ Fan fault)[Control]Transmit On/Off / Step Attenuator

Note2: Ethernet M&C interface will be installed in pre-production and production units.

New Japan Radio Co., Ltd.
Microwave Division

Title:
Preliminary Specification of NJT5873 & NJT5874 series
Reference No.:
PRD-NJT5873/74

Rev.:00-05

Sheet:42. Mechanical Specifications
#2.1.

Items

Specifications

Input Interface[IF / Ref. Input][DC/AC Power Input][M&C]

N-type female connector, 50 ohms
Circular Connector: YZ-20-C04SX-03-401A
Circular Connector: PT02E-14-19P (025)2.2.

Output Interface

Waveguide, WR-112 (with Groove)

2.3.

Cooling

Forced-air-cooled

2.4.

Dimension & Housing(W)150 x (L)215 x (H)138.5 mm

without interface connector and screws[(W)5.9” x (L)8.5” x (H)5.5”]

2.5.

2.6.

Weight< 60W / DC Power Model>

4.1kg [9 lbs]

< 60W / AC Power Model>

4.5kg [10 lbs]

< 40W / DC Power Model>

4.1kg [9 lbs]

< 40W / AC Power Model>

4.5kg [10 lbs]

Surface Finish[Protective & Conformal Coating][Finish Painting][Outer Color]

Trivalent Chromate Treatment or Equivalent
Acrylic Paint
Ivory

3. Environmental Specifications
#3.1.

Items

Specifications

Temperature Range (ambient)[Operating]-40 to +60 ºC[Storage]-40 to +75 ºC

3.2.

Humidity

0 to 100 % RH

3.3.

Altitude15,000 feet (4,572 m)

3.4.

Vibration

5 G [49.03 m/s2] (3 axis, 50 Hz to 2 kHz)
1 mm p-p (3 axis, 5 to 50 Hz)

3.5.

Shock

30 G [294.20 m/s2] (3 axis)

3.6.

Waterproof / Dustproof (IP Code)

IP 67

3.7.

Regulations

EU Directive (CE Marking)RE - 2014/53/EU
EMC - 2014/30/EU
RoHS - 2011/65/EU + (EU)2015/863
Safety: EN62368-1, EN60950-22

New Japan Radio Co., Ltd.
Microwave Division

Title:
Preliminary Specification of NJT5873 & NJT5874 series
Reference No.:
PRD-NJT5873/74

Rev.:
00-05

Sheet:
5#Items

3.8.

MIL-STD Compliance

Specifications

1. MIL-STD-810G (Environmental)[Non-operating Temperature][Operating Temperature][Relative Humidity]

TBD-30 to+60 °C, Method 501.5, Procedure I-40 to+60 °C, Method 505.6, Cycle A1, Procedure I
14 %RH at +60 °C, Method 507.6 Procedure II
100 %RH from -30 to +30°C, Method 507.6 Procedure II[Rain and Blowing Rain]

4 inch/hour, 40 mph winds, 30 min., Method 506.6,
Procedure I[Blowing Sand]

Sand Particles 0.01 to 1.0 mm diameter, 40 mph
winds,[Blowing Dust]

Dust Particles 0.0001 to 0.01 mm diameter, 15 mphwinds,[Salt Spray]

90 min., Method 510.6, Procedure II
90 min., Method 510.6, Procedure I

48 hour / 5 % concentration, Method 509.5[Non-operating Altitude]

40,000 feet, Method 500.6, Procedure I[Operating Altitude]

10,000 feet, Method 500.6, Procedure II[Transportation Vibration]

Method 514.7, Procedure III, Category 6[Transportation Shock][Fungus]

Method 516.7, Procedure IV
Not resulting in evidence of fungus growth oncomponent surface tested, Method 508.7

2. MIL-STD-461G (EMC/EMI/ESD)[Radio Emissions]

TBD
RE102, Radiated Emissions, Electric Field
RE103, Antenna Spurious and Harmonic Outputs[Conducted Emission]

CE102, Radio Frequency Potentials
CE106, Conducted Emissions, Antenna Port

[Conducted Susceptibility]

CS101, Low Frequency Susceptibility
CS114, Conducted Susceptibility, Bulk Cable Injection,
Curve #3 and Curve #4
CS115, Impulse Excitation
CS116, Damped Sinusoidal Transients
CS118, Electrostatic Discharge

3.9.

MTBF

New Japan Radio Co., Ltd.
Microwave Division

100,000 hours as Design Condition

Title:
Preliminary Specification of NJT5873 & NJT5874 series
Reference No.:
PRD-NJT5873/74

Rev.:
00-05

Sheet:
64. Outline Drawing
e.g. NJT5873NMXA

Caution:DO NOT remove the sealing tape on the waveguide. If the sealing tape is removed, it may
lose the performance of waterproof.

New Japan Radio Co., Ltd.
Microwave Division

Title:
Preliminary Specification of NJT5873 & NJT5874 series
Reference No.:
PRD-NJT5873/74

Rev.:
00-05

Sheet:
7

5. Label
5.1.

Label Outline

e.g. NJT5873NMXA

5.2.

Definitions

New Japan Radio Co., Ltd.
Microwave Division

Title:
Preliminary Specification of NJT5873 & NJT5874 series
Reference No.:
PRD-NJT5873/74

Rev.:
00-05

Sheet:
8

6. Package
6.1.

Individual / Shipment Package

New Japan Radio Co., Ltd.
Microwave Division

TBD

Title:
Preliminary Specification of NJT5873 & NJT5874 series
Reference No.:
PRD-NJT5873/74

Rev.:
00-05

Sheet:
96.2.

Enclosed Accessories
Gasket, Qty (1), Half Type, for waveguide flange

Wrench Key, Qty (1), #8-32UNC, Hexagon

Screws, Qty (8), #8-32UNC×1/2, Hexagon socket head, SUS, for waveguide flangeSpring Washers Qty(8), #8, SUS, for waveguide flange

Screws, Qty (1), M4 x 8, cross recessed head with spring washer and flat washer, SUS,
for frame ground

Washers Qty(8), M4, SUS, for bodyBolts, Qty (8), M4 x 10, cross recessed upset head with spring washer and flat washer, SUS,for bodyConnector, Qty (1), Mating connector: YZ-20-J04PE-03-001A (CNLinko)

Connector, Qty (1), Mating connector: PT06E-14-19S (470) (Amphenol)

New Japan Radio Co., Ltd.
Microwave Division

Title:
Preliminary Specification of NJT5873 & NJT5874 series
Reference No.:
PRD-NJT5873/74

Rev.:
00-05

Sheet:
107. Instructions Manual
7.1.

Descriptions
This section describes the information of Connectors and etc.

Items
LED Indicator

DescriptionPurpose

Red/Green Color

Local lock alarm indicator
GREEN: LO locked
RED: LO unlocked(or no 10 MHz reference signal)
The indicator can be turned off by M&C.

M&C

PT02E-14-19P (025)

M&C signal of RS-485/RS-422 and Parallel I/O

Input/Output[Amphenol / 19 pins, male]should be connected.

RF Output

Waveguide, WR-112

RF signal (7.9 to 8.4 GHz) will be transmitted.

(with Groove)
Ground HoleM4 Screw Hole

Common chassis ground / frame ground.

Power Input

YZ-20-C04SX-03-401A

DC power (+48V nominal) or AC power (100 to 240(CNLinko / 4pins, male]V) should be input, which are dependent on power
supply type.

IF/Ref Input

N-type Female Connector

IF signal (950 to 1,450 MHz) and 10MHz reference
signal should be input.

7.2.

Connector Pin Assignmenta) Power Input
Unit Connector: YZ-20-C04SX-03-401A [CNLinko / 4pins, receptacle, male]Mating Connector: YZ-20-J04PE-03-001 [CNLinko / 4pins plug, female]* Mating connector is enclosed in the shipping package

New Japan Radio Co., Ltd.
Microwave Division

Title:
Preliminary Specification of NJT5873 & NJT5874 series
Reference No.:
PRD-NJT5873/74

Rev.:
00-05

Sheet:11b) M&C Input/Output
Unit Connector: PT02E-14-19S(025)[ Amphenol / 19 pins, receptacle, male ]Mating Connector: PT06E-14-19P(470) [ Amphenol / 19 pins, female ]* Mating connector is enclosed in the shipping package

Note: Transmit On/Off Control can be set with “enable” or “disable”.
Default is “disable”, which is “Transmit On” regardless close / open setting.

Fig. 7.2.1 Schematic of M&C Parallel I/O

New Japan Radio Co., Ltd.
Microwave Division

Title:
Preliminary Specification of NJT5873 & NJT5874 series
Reference No.:
PRD-NJT5873/74

Rev.:
00-05

Sheet:
12

Caution
1. While New Japan Radio., Ltd,(NJR) continually strives to improve the quality and reliability of any products, failures would occur
in microwave products over time. For this reason, it is important that customers fulfill their responsibilities to ensure designed-in
safety – including failsafe functions, redundancy, and measures to prevent malfunctions and the spread of fire – in order to avoidinjuries, accidents, or social repercussions resulting from the failure of any product related to satellite communications on thisdocument (hereinafter, “the product”). Customers must pay careful attention to ensuring the safety of their equipment.
2. The product is designed and tested to function in accordance with its specifications. Do not use under conditions that deviate
from the product specifications included in the specifications. NJR assumes no responsibility and shall not be liable for any injuries,
accidents, or social repercussions resulting from the product being in a poor or damaged state because it was used underconditions that depart from the specifications.
3. The product is covered by a warranty for one year following delivery unless otherwise stipulated in the contract or delivery
conditions. In the event of a failure for which NJR are responsible occurring during the warranty period, NJR undertake to repair
or replace the product free of charge. Note, however, that the warranty does not cover failures such as those listed here (seebullets below), even if they occur within the warranty period. In addition, in the case of a product being repaired or replaced byus, the starting date for the warranty period is still the original delivery date of the product.
Failure due to the product being used in conditions other than those stipulated in the data sheet, specification sheet, etc.



Failure due to modifications or repairs carried out by some entity other than our company



Failure determined to be the result of unsuitable maintenance or replacement of a consumable item that requires due
maintenanceFailure due to circumstances that were unforeseeable given the scientific /technological standards at the time of shipment

Other failures due to external factors such as fire, earthquake, flood and power supply anomalies for which NJR are notresponsible

In addition, the product warranty is limited to the provision of repair services or replacement at no cost. It does not coversecondary damage (to equipment, business opportunities, profits, etc.) or any other damage that may have resulted from failureof the product.
4. The product must be handled appropriately to ensure its continued reliability. Since it can be damaged by the intrusion of water,dust, oil, chemicals, etc., it must be given appropriate protection. Even in the case of a product with an airtight construction,
avoid using it in an environment that exceeds the stated levels of waterproofing/dustproofing. Also, be sure to use connectors
and waveguides properly.
If replacement parts such as fans are included, proper maintenance is necessary. To maintain product performance andfunctionality, it is necessary to conduct inspections and maintenance at appropriate intervals and exchange replacement parts
when necessary. Improper inspections or maintenance may result in failure.
In addition, the warranty does not cover the use of the product in areas where salt damage can be expected or where there is a
substantial presence of corrosive gases such as Cl2, H2S, SO2, and NO2. If the product is to be used in such areas, at the timeof installation you must take appropriate steps to protect the product.
5. If the product is to be used with equipment/systems that must meet special quality and reliability standards (aerospace equipment,
medical equipment, power generation control equipment, automotive/railway transportation equipment, safety equipment,
disaster prevention and security equipment, etc.), please consult with our sales staff in advance.
6. This product contains gallium arsenide (GaAs), classified as a harmful substance. To avoid danger, do not incinerate, crush, or
chemically treat the product in such a way that gases or dust are released. When disposing of the product, comply with allapplicable laws and regulations and do not treat it as general industrial waste or household waste.
7. When exporting a product or technology, observe export laws and regulations such as those governing foreign exchange andforeign trade, and obtain any necessary licenses for export, service transactions, etc. NJR request that you do not use our products
or the technical data published on this document for developing weapons of mass destruction or for any other military purposes
or applications.
8. The product specifications on this document are subject to change without notice. If you are considering using a product, delivery
specifications must first be settled.

New Japan Radio Co., Ltd.
Microwave Division

Title:
Preliminary Specification of NJT5873 & NJT5874 series
Reference No.:
PRD-NJT5873/74

Rev.:
00-05

Sheet:
13