Specifications

Specification and debugging Method
1 Debuging tools
1）Integrated tester 8921；2）PC and installed CPS software；3）AEROFLEX 3920；4）Spectrum Analyzer FSU
。
2 Debugging Method & Requirement For TX section (Frequency: 136-174
MHz)
Item
Instrument
Configuration
Measuring
Methods and tools
Specification Remarks
Test
Device
Test
Point
Assistant
tool
Steps
TX center
Frequency
Set 8921 to TX mode
HP8921
Connect
Repeater
Antenna
port to
RF
IN/OUT
port of
8921
PC
1) Open CPS software and enter testing
mode;
2) Double click Low Freq. Mod
Deviation;
3) Adjust the data value of software &
Observe the Frequency via 8921;
4) Adjust till Frequency reach
Nominal
Freq 155.7525MHz±1kHz;
5）Click OK to save data.
2.5ppm
Within ±1kHz
while in testing
mode
TX High Power
Set 8921 to TX mode
HP8921；
1) Open CPS software and enter testing
mode;
2) Double click TX High Power, Click
F1 to F6 separately;
3) Adjust the data value of software &
Observe the TX power via 8921;
4)
Make the power reach 60W;
5) Observe the Current flow;
6）Click OK to save data.
Power：60W
Power
requirement only
apply to
Manufacturing
Process