![background image](http://html.mh-extra.com/html/icom/ic-m23/ic-m23_service-manual_612746013.webp)
5 - 2
ADJUSTMENT CONDITION
REFERENCE FREQUENCY
TX OUTPUT POWER
RX SENSITIVITY
SQUELCH
¤
ADJUSTMENT UTILITY SCREEN
ADJUSTMENT
TRANSCEIVER’S
CONDITION
OPERATION
ADJUSTMENT
ITEM
VALUE
PLL LOCK
VOLTAGE
VERIFICATION
1
• CH.
: 16
• Receiving
1) Connect an RF power meter to the
antenna connector.
2) Click the [Update (F5)] button to check on
the "I/O Check screen" as below.
[LVIN]
(On the "I/O
Check screen")
1.95–2.95 V
2
• CH.
: 16
• Transmitting
1.50–2.50 V
REFERENCE
FREQUENCY
1
• CH.
: 16
• Transmitting
• Loosely couple a frequency counter to the
antenna connector.
[Ref. Freq.]
156.800000
MHz
(±500 Hz)
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].
• I/O Check screen
(The values shown above are exsample only.
Each transceiver has own values.)
The Lock Voltage appears here