JRC NJT8304 Series User manual

NJT8306 series Instruction Manual Page 1
Instruction Manual
for
Document Part Number: IM-T8304
Revision: 01
Issue Date: March 27, 2017
Ku-band 4W BUC
[NJT8304 series]
IM-T8304 Rev.01
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.

NJT8306 series Instruction Manual Page 2
1.
2.
3.
4.
5.
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.
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
General Caution
IM-T8304 Rev.01

NJT8306 series Instruction Manual Page 3
6.
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.
IM-T8304 Rev.01

NJT8306 series Instruction Manual Page 4
Updated instruction manual may be available from NJRC's sales group
mcsal[email protected].
19 - 20
6. Installing ……………………………………………………………………………………
Contents
This instruction manual is intended for use by trained field installers or system
engineers responsible for satellite networks.
IM-T8304 Rev.01
6 - 9
About This Instruction Manual
This instruction manual describes Standard / Universal Ku-band 4W BUC (Model
No.: NJT8304N, NJT8304F, NJT8304UN, and NJT8304UF) herein referred to as
"the Unit".
This instruction manual provides information and instructions for installation and
operation of the Unit.
12 - 15
4. Overview ……………………………………………………………………………………
16 - 18
1. Introduction ………………………………………………………………………………
2. Safety Instructions ……………………………………………………………………
5
11
5. Physical Description …………………………………………………………………
3. Packing List ………………………………………………………………………………
10
7. Specification ………………………………………………………………………………

NJT8306 series Instruction Manual Page 5
Numbering System
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 / Universal Ku-band 4W BUC (Model No.:
NJT8304N, NJT8304F, NJT8304UN, and NJT8304UF).
1. Introduction
The Unit receives a reference signal (10 MHz) and an IF signal (L
‐
Band: 950 to
1,450 MHz or 950 to 1,700 MHz) input and transmits an RF signal (Ku‐Band: 14.0
to 14.5 GHz or 13.75 to 14.5 GHz) output.
IM-T8304 Rev.01
The Unit has the following line-up:

NJT8306 series Instruction Manual Page 6
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.
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.
DANGER
DANGER indicates an imminently
hazardous situation which, if not
avoided, will result in death or
serious injury.
WARNING
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
NOTE is used to notify of
installation, operation, or
maintenance information that is
important, but not hazard-
related.
IM-T8304 Rev.01
2. Safety Instructions
CAUTION
Statement
Symbol
Description

NJT8306 series Instruction Manual Page 7
IM-T8304 Rev.01
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.
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.
Symbol
Description
GENERIC HAZARD
DO NOT dismantle this product.
Dismantlement may cause malfunction and electric shock.
ELECTRIC HAZARD
HOT SURFACE
2.1. Safety Statements
When installing the Unit, observe the following safety guidelines.

NJT8306 series Instruction Manual Page 8
5. Input Level
IM-T8304 Rev.01
DO NOT touch the body, especially fins, during operating the
Unit.
High touch temperatures may exist, depending on load
conditions.
4. High Temperatures
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. Operating Temperature.
Operate the Unit within the ambient temperature range of -40
to +65 degree C.
2.2. Instruction Statements
1. Mounting
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.

NJT8306 series Instruction Manual Page 9
IM-T8304 Rev.01
3. Waveguide
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
Opening or removing any component (e.g. label, and screws)
or sealed area will immediately void the warranty.

NJT8306 series Instruction Manual Page 10
Description
Accessory of BUC
Ku-band 4W BUC
Qty
1 unit
1 set
Qty(1), Hexagon Wrench Key (M4)
NJT8304N
Qty(4), Hexagon Socket Head Bolt (M4x10)
OR
NJT8304UF
Date sheet
1 sheet
1.
2.
3.
Qty(1), O-ring
No.
IM-T8304 Rev.01
The Unit is shipped in a single shipping container with the following content:
3. Packing List
Qty(1), Cross-recessed Head Screw (M4x6)
NJT8304F
NJT8304UN

NJT8306 series Instruction Manual Page 11
The Unit has the following line-up:
The unique features are
* High Efficiency Output Power
P1dB: +36.0 dBm min. over temperature
ACPR: -26 dBc max. @ Pout = +35.5 dBm
Power Consumption:
20 W typ. @ No IF Signal
28 W typ. 32 W max. @ Pout = +36 dBm
* RF Frequency Line-up
Universal Ku-band: 13.75 to 14.5 GHz
Standard Ku-band: 14.0 to 14.5 GHz
* DC Power Operation
+12 to +30 VDC
* Smaller Size & Lighter Weight
Dimension: 98 (L) x 98 (W) x 42.5 (H) mm
[3.86” (L) x 3.86” (W) x 1.67” (H)]
Weight: 500 g [1.1 lbs]
* LED Indicator
* RoHS Compliance
The Unit transmits an RF signal (Ku
‐
Band: 14.0 to 14.5 GHz or 13.75 to 14.5
GHz) output with up to 4W (+36.0 dBm) linear.
Block Diagram
IM-T8304 Rev.01
4. Overview

NJT8306 series Instruction Manual Page 12
Overall Picture
(Model No. NJT8304UF)
This section describes appearance and outline for the Unit.
5.1. Appearance
5. Physical Description
IM-T8304 Rev.01

NJT8306 series Instruction Manual Page 13
IM-T8304 Rev.01
5.2.1. Outline Drawing of NJT8304N / NJT8304UN
5.2. Outline
Caution: DO NOT remove the sealing tape on the waveguide. If the sealing tape is
removed, it may lose the performance of waterproof.

NJT8306 series Instruction Manual Page 14
5.2.2. Outline Drawing of NJT8304F / NJT8304UF
IM-T8304 Rev.01
Caution: DO NOT remove the sealing tape on the waveguide. If the sealing tape is
removed, it may lose the performance of waterproof.

NJT8306 series Instruction Manual Page 15
Local Unlock Alarm
GREEN: L.O. locked
5.3. Description of Connectors, Switches, and LEDs
RED: L.O. unlocked (or no reference
signal)
LED
Indicator
Item
Description
IF / Reference
Input
and
DC Power Input
RF Output
The Unit receives an IF signal (950 to
1,450 MHz or 950 to 1,700 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 (14.0
to 14.5 GHz or 13.75 to 14.5 GHz) via
this waveguide.
N-type
OR
F-type
Female
Connector
WR-75
Purpose
IM-T8304 Rev.01
Ground
Hole
M4 Threaded Hole
Common chassis ground

NJT8306 series Instruction Manual Page 16
・
・
Secure the OMT or the filter to the Unit using the enclosed
hexagon socket head bolts (M4x10) with 1.15 to 1.4 N·m
torque as shown, when the thickness of the flange of the OMT
or the filter is 3.5 to 5.0 mm.
When the thickness is not 3.5 to 5.0 mm, you should prepare
the appropriate length screws or bolts.
The Unit can be mounted in the feed horn of the satellite antenna.
Step 1:
6.1.1. Guidelines for Attachment of OMT
IM-T8304 Rev.01
6.1. Mounting Configuration
6. Installing
This section describes basic installation for the Unit.
Step 2:
Normally the Unit should be mounted with long fins face up.
DO NOT block the fins.
When attaching the OMT or the filter, you should follow the following
steps:
Verify that the o-ring groove on the
waveguide flange of the Unit is clean.
Insert the enclosed o-ring (gasket)
the groove as shown.
6.1.2. Guidelines for Mounting
When mounting on the OMT or the filter, you should follow the following
cautions:

NJT8306 series Instruction Manual Page 17
Use self-amalgamating tape to seal connector and cable entry
points from the connector to the cable sheath.
6.2. Connecting System
6.2.1. Connecting Coaxial Cable
IM-T8304 Rev.01
The Unit is connected a coaxial cable and ground wire.
The Unit receives an IF signal and a reference signal via coaxial cable from
modem, and is required to supply +12 to +30 V DC power via coaxial
cable from modem.
Connecting the coaxial cable is proceeded with 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.
Step 2:
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.
Supplied the IF/Ref./DC Power via Coaxial Cable

NJT8306 series Instruction Manual Page 18
Fixing a ground wire from the common ground of other equipment for
grounding is proceed with the following step:
Fix the ground wire from other equipment to the ground hole
near the coaxial connector with enclosed on the Unit.
To reduce the risk of damage or broken by lightning surge, the
Unit should be fixed with the ground wire.
6.2.2. Fixing Ground Wire
The Unit should be common with ground of other equipment (e.g.
antenna).
Step 1:
IM-T8304 Rev.01
Fixing the Ground Wire

NJT8306 series Instruction Manual Page 19
Output Frequency Range
<Universal Ku-band> 13.75 to 14.5 GHz
<Standard Ku-band> 14.0 to 14.5 GHz
Input Frequency Range
<Universal Ku-band> 950 to 1,700 MHz
<Standard Ku-band> 950 to 1,450 MHz
Maximum IF Input Level +13 dBm max.
(without damage)
Conversion Type
Single, fixed L.O.
L.O. Frequency
<Universal Ku-band> 12.80 GHz
<Standard Ku-band> 13.05 GHz
Frequency Sense
Positive
Output Power @ 1dB G.C.P. +36.0 dBm min. over temperature
Linear Gain 62 dB nom., 56 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.
14.
Output VSWR
2 : 1 max.
Infinite : 1
1.3 : 1 max.
[Recommendation]
[Non Damage]
ACPR
2 : 1 max.
Output Load V.S.W.R.
-125 dBc/Hz max. @ 100 Hz
-135 dBc/Hz max. @ 1 kHz
10 MHz (sine-wave)
-5 to +5 dBm @ Input port
@ Pout = +36.0 dBm
7.1. Electrical Specifications
Requirement for External
IM-T8304 Rev.01
[Input Power]
[Frequency]
Input Impedance
L.O. Phase Noise
Item
-140 dBc/Hz max. @ 10 kHz
12.
11.
The Unit is in compliance with the following specifications:
Specifications
7. Specification
No.
1.
4.
3.
2.
5.
6.
7.
-26 dBc max.
8.
9.
10.
Reference
[Phase Noise]
Input VSWR
15.
13.

NJT8306 series Instruction Manual Page 20
<N-type Model>
<F-type Model>
2.
1 mm p-p (3 axis, 5 to 50 Hz)
EMC (2014/30/EU)
RoHS (2011/65/EU)
Safety: EN60950-1
*1: Conditioned on connection with waveguide.
0 to 100 %
98 mm [3.86"]
13.
Comply with RoHS (Restricting the use of Hazardous Substances)
directives
12.
Regulatory Compliance
EU Directive (CE Marking)
IP67 (IEC 60529) *1
6.
Temperature Range (ambient)
-40 to +75 °C
-40 to +60 ºC
7.2. Mechanical and Environmental Specification:
(H)
4.
98 mm [3.86"]
42.5 mm [1.67"]
No.
Item
Specifications
IF / Ref. / DC Power:
N-type female connector, 50 ohms
Input Interface
IM-T8304 Rev.01
11.
Dustproof / Waterproof
Dimension & Housing
Weight
5.
Cooling
Convection Cooling
(L)
10.
Shock
30 G [294.2 m/s2] (3 axis)
[Operating]
500 g [1.1 lbs]
7.
Humidity
1.
Waveguide, WR75 (with Groove)
9.
Vibration
5 G [49.03 m/s2]5 G [49.03 m/s2]
(3 axis, 50 Hz to 2 kHz)
Output Interface
3.
[Voltage Range]
+24 VDC (+12 to +30 VDC)
15,000 feet (4,572 m)
without Interface Connector
No.
Item
Specifications
16.
DC Power Requirement
F-type female connector, 75 ohms
8.
Altitude
[Storage]
(W)
20 W typ. @ No IF signal
28 W typ., 32 W max.
@ Pout = +36.0 dBm
2 W max. @ 10 MHz ref. off (Mute on)
17.
Mute
Shut off the HPA in case of L.O.
unlocked
[Power Consumption]