Alinco DJ-175 Service Manual page 22

1. Frequency adjustment
Select memory ch.1.
Press PTT on the unit to transmit and measure the TX frequency. One of digits 00-FF
should appear on the display where memory channel number was shown. Rotate the dial
on the unit to adjust the frequency to bring the value to the range specified below.
Specification value :±50Hz
Necessary instrument: (1). Frequency counter
2. TX output – High power
Select memory ch.2.
Press PTT on the unit to transmit. One of digits 00-FF should appear on the display
where memory channel number was shown. Rotate the dial on the unit to adjust the TX
power to meet the specification. Release the PTT to finish the adjustment. Be sure to
check the consuming current value after the adjustment is completed.
Specification:
TX-output power/High: 5.0 watts
Current consumption / 1.6A or less
Necessary instrument: (1). DC Ammeter
3. TX output – Middle power
Select memory ch.3.
Press PTT on the unit to transmit. One of digits 00-FF should appear on the display
where memory channel number was shown. Rotate the dial on the unit to adjust the TX
power to meet the specification. Release the PTT to finish the adjustment.
Specification: 2.0 watts
Necessary instrument: (1). Power meter
4. TX output – Low power
Select memory ch.4.
Press PTT on the unit to transmit. One of digits 0-F should appear on the display where
memory channel number was shown. Rotate the dial on the unit to adjust the TX power
to meet the specification. Release the PTT to finish the adjustment.
Specification: 0.5 watts
Necessary instrument: (1). Power meter
(2). Power meter