Frequency Adjustment - Icom IC-F6220D Service Manual

6-2 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
CONDITION
PLL LOCK 1 • Channel
VOLTAGE • Receiving
(RX)
2 • Channel
• Receiving
(TX) 3 • Channel
• Transmitting
4 • Channel
• Transmitting
REFERENCE 1 • Channel
FREQUENCY • Transmitting
*; [Low band] versions.
**; [High band] versions.
***; [350 MHz band] versions.
OPERATION
: 1-1 • Connect an RF power meter to the
antenna connector.
: 1-2
: 1-1
: 1-2
: 1-2 • 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.)
6 - 5
ADJUSTMENT
ITEM
[RX LVA(Adjust)]
[RX LVA(Check)]
[TX LVA(Adjust)]
[TX LVA(Check)]
470.000000 MHz*
520.000000 MHz**
[REF]
400.000000 MHz***
Lock voltage
* * *
appears here
VALUE
1.0 V
3.95–4.05 V
1.0 V
3.95–4.05 V
(±100 Hz)