MLS MLSH041 Instrukcja Instalacji Strona 18

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LBI-38425A ALIGNMENT AND TROUBLESHOOTING PROCEDURES
18
5.2 TRANSMITTER
Alignment and troubleshooting procedures for Transmitter circuitry on the
Transmitter/Receiver board CMN-233 are as follows:
5.2.1 General Description of Adjustment
This manual is prepared for adjustments and confirmations of the Exciter/PA section and
covers the following items:
5.2.2 Measuring Instruments
AVR (DC Power Supply DC 0-20V, 20A)
Power Meter (usable at the value above 80 W)
Directional Coupler
Signal Generator
Spectrum Analyzer
Attenuator (30 dB, above 80 W)
Tester
STOP
START
Confirming the Voltage
Confirming the APC Section
Adjustment and Setting of the Transmitting Output
Initial Setting
1
2
3
4
DC power ON
SG, PTT ON
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