Frequency Adjustments - Icom IC-M23 Service Manual

¤ ADJUSTMENT UTILITY SCREEN
ADJUSTMENT CONDITION
REFERENCE FREQUENCY
TX OUTPUT POWER
RX SENSITIVITY
SQUELCH

5-2 FREQUENCY ADJUSTMENTS

1) Select an adjustment item using [↑]/[↓] on the PC's keyboard.
2) Set or modify the adjustment value as specifi ed using [←]/[→] on the PC's keyboard, then push [ENTER].
TRANSCEIVER'S
ADJUSTMENT
PLL LOCK 1 • CH.
VOLTAGE • Receiving
VERIFICATION
2 • CH.
• Transmitting
REFERENCE 1 • CH.
FREQUENCY • Transmitting
CONDITION
: 16 1) Connect an RF power meter to the
antenna connector.
2) Click the [Update (F5)] button to check on
: 16
the "I/O Check screen" as below.
: 16 • Loosely couple a frequency counter to the
antenna connector.
• I/O Check screen
(The values shown above are exsample only.
Each transceiver has own values.)
OPERATION
5 - 2
ADJUSTMENT
VALUE
ITEM
1.95–2.95 V
[LVIN]
(On the "I/O
1.50–2.50 V
Check screen")
156.800000
[Ref. Freq.] MHz
(±500 Hz)
The Lock Voltage appears here