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RP3000 Adjustment Description
-18 -
VCO
Measurement
Adjustment
Item
Condition
Test
Instrument
Terminal
Part
Method
Specification/
Remarks
1. Setting
Power supply 7.5V
1.Turn to CH1. Press
PTT. TX High
Check
3.1V±0.2V
2.Transmit
VCO lock
voltage
2. Press PTT again.
TX Low
Check
1.0V±0.2V
1. Turn to CH2. Press
PTT. TX High
Check
3.1V±0.2V
3. Receiving
VCO lock
voltage
2. Press PTT again.
TX Low
Digital
Voltmeter
CV
TC350
TC351
Check
1.0V±0.2V
Transmitter
Measurement
Adjustment
Item
Condition
Test Instrument
Terminal
Part
Method
Specification/
Remarks
1. CTCSS
balance
2. Transmit
frequency
Turn to CH3.
Press PTT.
Turn to CH4.
Press PTT.
Oscillograph
Radio
Communication
Test Set
ANT
ANT
VR601
[B] (up)
[C] (down)
Adjust variable
resistor to rectify the
waveform to balance.
Press [A] to save.
Adjust to center
frequency. Press [A]
to save.
Error
≤
150Hz