TX Adjustment
Condition Measurement Adjustment Specification/
Item Test equipmen Unit Terminal Unit Parts Method Remarks
VR1: max
Power:High
PTT: ON
High Power Frequency:145.00MHz 52w
Power:High *1 VR1 +/- 1.0W
PTT: ON Power Meter Back ANT Main Below 10.5A
Frequency:130.00MHz Above 5W
Power:High *2 Check (T.E.EZ)
PTT: ON
Frequency:174.00MHz Above 5W
or 155MHz Check (T.E.EZ)
Power:Low *3
PTT: ON
Frequency:130.00MHz
Low Power Power:Low *1 VR5 5.0w +/- 0.5W
PTT: ON (T.E.EZ)
Frequency:145.00MHz
DEV Power: Low *1 VR2 4.7kHz 4.7 +/-0.2kHz/Dev
AG:1KHz -30dBm /Dev
PTT: ON
Frequency:145.00MHz AG
MIC Gain Power: Low *1 Linear Detecto
Back ANT Main 4.0kHz 4.0 +/-0.2kHz/Dev
AG:1KHz -47dBm Power Meter /Dev
PTT: ON
Frequency:145.00MHz
CTCSS Ton
Power: Low *1 Check 0.60-0.85kHz/Dev
DEV AG: OFF
PTT: ON
ToneSW(88.5Hz):ON
Frequency:145.00MHz
Tone Burst Power: Low *1 Check 2.5-3.5kHz/Dev
DEV AG: OFF
PTT: ON
ToneSW:ON
*1 or bond-center of your radio version
*2 or bond lower limit of your radio version
*3 or bond upper limit of your radio version
If the logic boad EJ-21D or EJ21D exists ,first pull out the logic board
and re-connect W3,W4,W5, so that the radio comes back to conventional
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