JRC GKP-2794 C-Band Weather Radar Radio Module User Manual
- June 5, 2024
- JRC
Table of Contents
JRC GKP-2794 C-Band Weather Radar Radio Module
PREFACE
BEFORE OPERATION
- GRAPHIC INDICATION
Various graphic indications are included in this manual and are shown on the
equipment so that it can be operated safely and correctly and prevent any
danger to the operator and/or to other persons and any damage to property
during operation. Such indications and their meanings are as follows.
Understand them before reading this manual.
WARNING
This indication is shown where it indicates that any person will be in
danger of seriously injured or loss of life if this indication is neglected
and the equipment are not operated correctly.
CAUTION
This indication is shown where it indicates that any person will be in
danger of seriously injured or loss of life if this indication is neglected
and the equipment are not operated correctly.
EXAMPLES OF GRAPHIC INDICATION
PRECAUTIONS
WARNING
- Do not touch TRX Unit.
- TRX Unit is a moving part, and it may cause injury.
- For internal inspection and repair work of equipment components, consult with our branch office, branch shop, sales office, or our distributor in your district.
- This transmitter must not be co-located or operated in conjunction with any other antenna or transmitter.
This device complies with Part 90 of the FCC rules.
General
GKP-2794 is sloid-state radio module of weather radar. It is composed with
STALO, DSP Unit, TRX Unit Module, and PA Unit. The source oscillation signal
is generated in Signal Processor. TRX Unit up-convert the source oscillation
to the transmission frequency by mixing it with the local signals generated by
STALO, and amplifies it at the PA Unit.
Since this is solid-state type, it does not require either pre-heat or tune-
up. Also, it is possible to keep stable transmission and low power consumption
for longer period of time.
Details of the components are shown in the next page.
Block Diagram of transmission
Specifications
Interface
| No| Port Name| Detail| Spec.| Remarks
---|---|---|---|---|---
STALO
| | RF OUT1| 1st Local Signal Output| SMA-J|
| REF OUT1| 2nd Local Signal Output| SMA-J|
Signal Processor
| J1| TX OUT| IF Signal Output| SMA-J|
TRX Unit
| J101| TX IF| TX IF Signal Input| SMA-J|
J102| TX OUT| TX RF Signal Output| SMA-J|
J401| 1st LO IN| 1stLO Input| SMA-J|
J402| 2nd LO IN| 2ndLO Input| SMA-J|
High Pass Filter
| | | | SMA-J|
PA Unit
| J1| RX TX| RF input signal| TNC-J|
J2| TX OUT| RF output signal| TNC-P|
Harmonic Filter
| | | | |
Performance
| No | Item | Specification | Remarks |
|---|
1
|
Transmission frequency
|
5600 MHz, 5800 MHz
|
2
| TRX Unit IF frequency|
60MHz
|
3| Duty| 10% or less|
4| OBW| 8MHz or less|
5| Transmit RF output| 400 W (Peak)|
6
| Operating temperature range| 0℃～+60℃|
7
| Storage temperature
range
| 0℃～+60℃|
8
|
Power Supply
| DC+12V: DSP Unit DC+12V: STALO DC+12V: TRX Unit DC+48V: PA Unit|
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