Frequency Adjustment - Icom IC-F6021 Service Manual

6-2 FREQUENCY ADJUSTMENT

1) Select an adjustment item using cursor or [↑] / [↓] of the PC's keyboard.
2) Set or modify the adjustment value as specifi ed using [←] / [→] of the PC's keyboard, then push [ENTER].
ADJUSTMENT ADJUSTMENT CONDITION
PLL LOCK 1 • Channel
VOLTAGE • Receiving
-adjustment-
[RX LVA]
[TX LVA] 2 • Channel
• Transmitting
PLL LOCK 1 • Channel
VOLTAGE • Receiving
-verifi cation-
2 • Channel
• Transmitting
REFERENCE 1 • Channel
FREQUENCY • Connect an RF power meter to the
[REF] antenna connector.
• Transmitting
: 1-1
: 1-1
: 1-2
: 1-2
: 1-3
• I/O Check window
(The values shown in the above screen are example only.
Each transceiver has their own values.)
OPERATION
Select the item [RX LVA], then adjust the
voltage (LVIN) using [←] / [→] of the PC's
keyboard.
Select the item [TX LVA], then adjust the
voltage (LVIN) using [←] / [→] of the PC's
keyboard.
Click [Reload (F5)] button, then check the
"LVIN" item on the "I/O Check window."
Loosely couple a frequency counter to the
antenna connector.
6 - 4
VALUE
1.3 V
1.5 V
3.2–4.2 V
2.8–3.8 V
470.000000 MHz
[Low band]
520.000000 MHz
[High band]
Lock voltage