Uniden GMR1035-2 Alignment Procedure

ALIGNMENT PROCEDURE FOR GMR1035‑2(ST DI) / UT024ZH
TRANSMITTER
STEP MODE CHANNEL
1 TX 1
2 TX 1
3 TX 1
RECEIVER
STEP MODE CHANNEL
1 RX 1
2 RX 1
FREQUENCY
462.5625MHz RF POWER METER TO ANTENNA
PATTERN (HOT AND GND) OF
THE PCB .
462.5625MHz CONNECT FREQUENCY COUNTER TO
THE ANTENNA PATTERN ON THE PCB
WITH AN APPROPRIATE ATTENUATOR.
462.5625MHz CONNECT MODULATION ANALYZER TO
THE ANTENNA PATTERN ON THE PCB.
HPF:OFF LPF:15KHz DE‑EMP:OFF
INJECT 1KHz 60mVp‑p SINE WAVE TO
MIC LAND FROM AUDIO GENERATOR.
FREQUENCY
462.5625MHz CONNECT DC VOLTMETER TO TP2
INJECT ‑47dBm RF SIGNAL WITHOUT
MODULATION FROM SSG TO THE ANTENNA
PATTERN ON THE PCB.
462.5625MHz CONNECT SINAD METER TO SPRED&SPBLK LAND
WITH 16Ω DUMMY LOAD.
INJECT RF SIGNAL FROM SSG AS FOLLOWING
CONDITION.
MAGNITUDE:AS LARGE AS THE RECEIVER OBTAINS
10dB SINAD SENSITIVITY.
DEVIATION:±1.5KHz
AF FREQUENCY:1KHz
CONDITION
CONDITION
ADJUST METHOD
‑ CHECK THE RF OUTPUT POWER
"LESS THAN 0.7W ".
RT102 KEY THE TRANSMITTER WITHOUT ANY
MODULATION. ADJUST TRANSMISSION
FREQUENCY TO 462.562500MHz±100Hz
RT101 KEY THE TRANSMITTER, AND ADJUST RT101
AS THE MODULATION ANALYZER INDICATES
±2.2KHz ±0.1KHz DEVIATION.
ADJUST METHOD
L109 ADJUST L109 AS THE VOLTMETER
INDICATES 1.6V±0.05V
RT103 TURN RT103 FULLY C.C.W., THEN
TURN SLOWLY TO C.W. AND SET IT
AT THE POINT WHERE WAVEFORM
APPEARS AT THE SPEAKER OUT.
AMWUT024