New Japan Radio NJT8103 series User manual

NJT8103 series Instruction Manual Page 1
Copyright © 2017, New Japan Radio Co., Ltd. All rights reserved.
This instruction manual may not be reproduced, in part or in whole,
without the permission of New Japan Radio Co., Ltd.
The specifications and information regarding the products in this
instruction manual are subject to change without notice.
All statements, information, and recommendations in this
instruction manual are believed to be accurate but are presented
without warranty of any kind, express, or implied.
Users must take full responsibility for their application of any
products.
Instruction Manual
for
Document Part Number: IM-T8103
Revision: 01
IM-T8103 Rev.01
[NJT8103 series]
C-band 3W BUC
Issue Date: July 27, 2017

NJT8103 series Instruction Manual Page 2
1.
2.
3.
4.
5.
IM-T8103 Rev.01
NJRC strives to produce reliable and high quality microwave components.
NJRC's microwave components are intended for specific applications and
require proper maintenance and handling. To enhance the performance
and service of NJRC's microwave components, the devices, machinery or
equipment into which they are integrated should undergo preventative
maintenance and inspection at regularly scheduled intervals. Failure to
properly maintain equipment and machinery incorporating these products
can result in catastrophic system failures.
To ensure the highest levels of reliability, NJRC products must always be
properly handled. The introduction of external contaminants (e.g. dust, oil
or cosmetics) can result in failures of microwave components.
NJRC offers a variety of microwave components intended for particular
applications. It is important that you select the proper component for your
intended application. You may contact NJRC's sales office or sales
representatives, if you are uncertain about the products listed in the
catalog and the specification sheets.
General Caution
Special care is required in designing devices, machinery or equipment,
which demand high levels of reliability. This is particularly important when
designing critical components or systems whose foreseeable failure can
result in situations that could adversely affect health or safety. In
designing such critical devices, equipment or machinery, careful
consideration should be given to, amongst other things, their safety
design, fail-safe design, back-up and redundancy systems, and diffusion
design.
The products listed in the catalog and specification sheets may not be
appropriate for use in certain equipment where reliability is critical or
where the products may be subjected to extreme conditions. You should
consult our sales office or sales representatives before using the products
in any of the following types of equipment.
* Aerospace Equipment
* Equipment Used in the Deep Sea
* Power Generator Control Equipment (nuclear, steam, hydraulic)
* Life Maintenance Medical Equipment
* Fire Alarm/Intruder Detector
* Vehicle Control Equipment (automobile, airplane, railroad, ship, etc.)
* Various Safety Equipment

NJT8103 series Instruction Manual Page 3
6.
IM-T8103 Rev.01
General Caution (continued)
NJRC's products have been designed and tested to function within
controlled environmental conditions. Do not use products under conditions
that deviate from methods or applications specified in the catalog and
specification sheets. Failure to employ NJRC's products in the proper
applications can lead to deterioration, destruction or failure of the
products. NJRC shall not be responsible for any bodily injury, fires or
accidents, property damage or any consequential damages resulting from
the misuse or misapplication of its products. PRODUCTS ARE SOLD
WITHOUT WARRANTY OF ANY OF KIND, EITHER EXPRESS OR IMPLIED,
INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.

NJT8103 series Instruction Manual Page 4
7. Specification ………………………………………………………………………………
This instruction manual describes Standard / Full C-band 3W BUC (Model No.:
NJT8103N, NJT8103F, NJT8103WN, and NJT8103WF) herein referred to as "the
Unit".
This instruction manual provides information and instructions for installation and
operation of the Unit.
1. Introduction ………………………………………………………………………………
2. Safety Instructions ……………………………………………………………………
5
10
5. Physical Description …………………………………………………………………
Contents
This instruction manual is intended for use by trained field installers or system
engineers responsible for satellite networks.
20 - 21
6. Installing ……………………………………………………………………………………
6 - 9
Updated instruction manual may be available from NJRC's sales group
mcsal[email protected].
IM-T8103 Rev.01
4. Overview ……………………………………………………………………………………
16 - 19
11
12 - 15
About This Instruction Manual
3. Packing List ………………………………………………………………………………

NJT8103 series Instruction Manual Page 5
Numbering System
The Unit has the following line-up:
The Unit receives a reference signal (10 MHz) and an IF signal (L
‐
band: 950 to
1,525 MHz or 950 to 1,825 MHz) input and transmits an RF signal (C‐band: 5.850
to 6.425 GHz or 5.850 to 6.725 GHz) output.
The Unit comes in a single, weatherized housing rated for outdoor use. The Unit
has either an N-Type or a F-type female connector input, a WR75 waveguide
output. The Unit is operated by +24 V DC power (Range: +12 to +30 V) input.
This instruction manual is for Standard / Full C-band 3W BUC (Model No.:
NJT8103N, NJT8103F, NJT8103WN, and NJT8103WF).
1. Introduction
IM-T8103 Rev.01

NJT8103 series Instruction Manual Page 6
Symbol
Description
IM-T8103 Rev.01
2. Safety Instructions
CAUTION
Statement
NOTE is used to notify of
installation, operation, or
maintenance information that is
important, but not hazard-
related.
DANGER, WARNING, CAUTION, and NOTE Statements
Use the following safety guidelines to help protect the Unit from potential damage
and to help ensure your own personal safety.
WARNING indicates a potentially
hazardous situation which, if not
avoided, could result in death or
serious injury.
CAUTION indicates a potentially
hazardous situation which, if not
avoided, could result in minor or
moderate injury. CAUTION may
also be used to indicate other
unsafe practices or risks of
property damage.
NOTE
DANGER
DANGER indicates an imminently
hazardous situation which, if not
avoided, will result in death or
serious injury.
WARNING
DANGER, WARNING, CAUTION, and NOTE statements are used throughout
this instruction manual to emphasize important and critical information. You
must read these statements to help ensure safety and to prevent product
damage. The statement are defined below.

NJT8103 series Instruction Manual Page 7
2.1. Safety Statements
When installing the Unit, observe the following safety guidelines.
3. RF Radiation
1. Opening / Removing
2. Input Voltage
Only input a voltage within the range indicated in specified
voltage.
DO operate at the input voltage of +12 to +30 V DC power.
A radiation hazard exists if the BUC is operated with its RF
signal output unterminated.
DO NOT operate the BUC without a load or termination
attached to the RF signal output.
DO NOT dismantle this product.
Dismantlement may cause malfunction and electric shock.
ELECTRIC HAZARD
HOT SURFACE
Symbol
Description
GENERIC HAZARD
IM-T8103 Rev.01

NJT8103 series Instruction Manual Page 8
DO NOT block the fins.
Normally the Unit should be mounted with long fins face up.
2. Weatherproof
The Unit is mounted outdoors must be adequately
weatherproofed.
Ensure the waveguide joints are properly sealed with the
supplied o-ring (gasket).
Use self-amalgamating tape to seal connectors and cable entry
points from the connector to the cable sheath.
Operate the Unit within the ambient temperature range of -40
to +60 degree C.
2.2. Instruction Statements
1. Mounting
DO NOT input an IF signal over the range of +13 dBm
maximum and a reference signal within the range of -5 to +5
dBm.
DO NOT touch the body, especially fins, during operating the
Unit.
High touch temperatures may exist, depending on load
conditions.
4. High Temperatures
IM-T8103 Rev.01
6. Operating Temperature.
5. Input Level

NJT8103 series Instruction Manual Page 9
Opening or removing any component (e.g. label, and screws)
or sealed area will immediately void the warranty.
DO NOT remove the sealing tape on the waveguide. If the
sealing tape is removed, it may lose the performance of
waterproof.
4. Connecter
Connect the IF cable to the input connector of both N and F-
type with 0.68 to 1.13 N·m torque.
5. Warranty
3. Waveguide
IM-T8103 Rev.01

NJT8103 series Instruction Manual Page 10
NJT8103F
3. Packing List
No.
IM-T8103 Rev.01
The Unit is shipped in a single shipping container with the following content:
Qty(1), O-ring
Qty(1), Hexagon Wrench Key (M4)
NJT8103WN
Qty(8), Spring Washer
1 set
1 sheet
Qty
1 unit
Description
Qty(8), Hexagon Socket Head Bolt (#10-32UNF, L=0.5")
OR
NJT8103WF
NJT8103N
Date sheet
Accessory of BUC
1.
2.
3.
C-band 3W BUC

NJT8103 series Instruction Manual Page 11
IM-T8103 Rev.01
4. Overview
The unique features are
* High Efficiency Output Power
P1dB: +34.5 dBm min. over temperature
ACPR: -26 dBc @ Pout = +34.5 dBm
Power Consumption:
18 W typ. @ No IF Signal
21W typ. 25 W max. @ Pout = +34.5 dBm
* RF Frequency Line-up
Full C-band: 5.850 to 6.725 GHz
Standard C-band: 5.850 to 6.425 GHz
* DC Power Operation
+12 to +30 VDC
* Smaller Size & Lighter Weight
Dimension: 135.4 (L) x 85 (W) x 56 (H) mm
[5.33” (L) x 3.35” (W) x 2.20” (H)]
Weight: 800 g [1.8 lbs]
* LED Indicator
* RoHS Compliance
The Unit transmits an RF signal (C
‐
Band: 5.850 to 6.425 GHz or 5.85 to 6.725
GHz) output with up to 3W (+34.5 dBm) linear.
Block Diagram
The Unit has the following line-up:

NJT8103 series Instruction Manual Page 12
IM-T8103 Rev.01
5.1. Appearance
5. Physical Description
This section describes appearance and outline for the Unit.
Overall Picture
(Model No. NJT8103WF)

NJT8103 series Instruction Manual Page 13
5.2. Outline
5.2.1. Outline Drawing of NJT8103N / NJT8103WN
IM-T8103 Rev.01

NJT8103 series Instruction Manual Page 14
5.2.2. Outline Drawing of NJT8103F / NJT8103WF
IM-T8103 Rev.01

NJT8103 series Instruction Manual Page 15
Ground
Hole
M4 Threaded Hole
Common chassis ground
5.3. Description of Connectors, Switches, and LEDs
IM-T8103 Rev.01
Item
Description
IF / Reference
Input
and
DC Power Input
RF Output
The Unit receives an IF signal (950 to
1,525 MHz or 950 to 1,825 MHz) and a
reference signal (10 MHz) and is
required to supply +12 to +30 V DC
power via this connector.
The Unit transmits an RF signal (5.85
to 6.425 GHz or 5.85 to 6.725 GHz) via
this waveguide.
Purpose
WR-75
N-type
OR
F-type
Female
Connector

NJT8103 series Instruction Manual Page 16
The Unit can be mounted with OMT or the waveguide filter of the satellite
antenna.
When mounting on the OMT or the waveguide filter, follow the following
caution:
DO NOT block the fins.
Normally the Unit should be mounted with long fins face up.
IM-T8103 Rev.01
When mounting with the OMT or the waveguide filter, follow the following
steps:
Step 1:
Verify that the groove on the waveguide flange of the Unit for the
o-ring is clean.
Insert the supplied o-ring (gasket) the groove as shown in a figure
below.
Insaeting O-ring
6. Installing
This section describes basic installation for the Unit.
6.1. Mounting Configuration

NJT8103 series Instruction Manual Page 17
Insaeting O-ring
Table: Screw Length List
Flange Thickness of OMT or
Screw Length
2 - 5 mm [0.075" - 0.2"]
1/2"
The Unit must be adequately weatherproofed to place in
outdoor.
Ensure that the waveguide joint is properly sealed with the
supplied o-ring (gasket).
5 - 8.5 mm [0.2" - 0.325"]
5/8"
8.5 - 11.5 mm [0.325" -
3/4"
IM-T8103 Rev.01
Step 2:
Secure the OMT or the filter to the Unit using the enclosed hexagon
socket head bolts (#10-32UNF L=0.5") with 2.39 to 2.91 N·m
torque as shown, when the thickness of the flange of the OMT or
the filter is 2.0 to 5.0 mm.
When the thickness is not 3.5 to 5.0 mm, you should prepare the
appropriate length screws or bolts based on following table.
11.5 - 15 mm [0.45" -
7/8"

NJT8103 series Instruction Manual Page 18
Step 2:
Use self-amalgamating tape to seal connector and cable entry
points from the connector to the cable sheath.
Only input a voltage within the range indicated in specified
voltage.
DO operate at the input voltage of +12 to +30 V DC power at
the coaxial connecter on the Unit.
DO NOT input an IF signal over the range of +13 dBm
maximum and a reference signal within the range of -5 to +5
dBm.
6.2. Connecting Modem
The Unit is connected the modem.
6.2.1. Connecting Coaxical Cable.
The Unit receives the reference and the IF signal and is required to supply
+12 to +30 V DC power from the modem via coaxial cable.
IM-T8103 Rev.01
When connecting the coaxial cable from the modem, follow the following
steps:
Step 1:
Connect the coaxial cable with the N or F-type male connectors
to the coaxial connecter equipped with the Unit which is shown
in a figure below under 0.68 to 1.13 N・m torque.
Location of Coaxial Connector
Supplied the IF/Ref./DC Power
via Coaxial Cable

NJT8103 series Instruction Manual Page 19
Fix the ground wire from other equipments to the ground hole
near the coaxical connector with enclosed on the Unit which is
shown in a figure below.
Location of Ground Wire
To reduce the risk of damage or broken by lightning surge, the
Unit should be fixed with the ground wire.
Step 1:
6.2.2. Fixing Ground Wire
The Unit should be common with ground of other equipments (e.g.
antenna).
Fixing a ground wire from the common ground of other equipments for
grounding is proceed with the following step:
IM-T8103 Rev.01
Fixing the Ground Wire

NJT8103 series Instruction Manual Page 20
Output Frequency Range
<Full C-band> 5.850 to 6.725 GHz
<Standard C-band> 5.850 to 6.425 GHz
Input Frequency Range
<Full C-band> 950 to 1,825 MHz
<Standard C-band> 950 to 1,525 MHz
Maximum IF Input Level +13 dBm max.
(without damage)
Conversion Type
Single, fixed L.O.
L.O. Frequency 4.90 GHz
Frequency Sense
Positive
Output Power @ 1dB G.C.P. +34.5 dBm min. over temperature
Linear Gain 59 dB nom., 53 dB min.
-60 dBc/Hz max. @ 100 Hz
-70 dBc/Hz max. @ 1 kHz
-80 dBc/Hz max. @ 10 kHz
-90 dBc/Hz max. @ 100 kHz
-100 dBc/Hz max. @ 1MHz
<N-type Model>
50 ohms nom.
<F-type Model>
75 ohms nom.
12.
11.
Item
13.
Input VSWR
15.
9.
10.
Reference
[Phase Noise]
Input Impedance
Output VSWR
2 : 1 max.
14.
Infinite : 1
1.3 : 1 max.
[Recommendation]
-26 dBc typ.
-140 dBc/Hz max. @ 10 kHz
L.O. Phase Noise
8.
3.
2.
5.
6.
7.
7. Specification
No.
1.
4.
Specifications
ACPR
The Unit is in compliance with the following specifications:
[Non Damage]
2 : 1 max.
Output Load V.S.W.R.
-120 dBc/Hz max. @ 100 Hz
-130 dBc/Hz max. @ 1 kHz
IM-T8103 Rev.01
10 MHz (sine-wave)
-5 to +5 dBm @ Input port
@ Pout = +34.5 dBm
[Input Power]
[Frequency]
Requirement for External
7.1. Electrical Specifications