Icom IC-F4261DT - Frequency Adjustments

5 - 5
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, and then push [ENTER].
(The values shown above are exsample only.
Each transceiver has own values.)
Lock voltage will be displayed here.
• I/O Check window
ADJUSTMENT
TRANSCEIVER’S
CONDITION
OPERATION
ADJUSTMENT
ITEM
VALUE
PLL LOCK
VOLTAGE
1
–
1) Connect an RF power meter to the an-
tenna connector.
2) Set the preset adjustment value on the
adjustment utility window.
[LV (RX 1)]
[LV (RX 2)]
[LV (TX)]
"51"
(for each)
(RX band low) 2 • Channel : 1-1
• Receiving
• Select the item [RX LVA1], and then push
[ENTER].
[RX LVA1] 1.00 V
(RX band center) 3 • Channel : 1-2
• Receiving
• Select the item [RX LVA2], and then push
[ENTER].
[RX LVA2]
(TX) 4 • Channel : 1-3
• Transmitting
• Select the item [TX LVA], and then push
[ENTER].
[TX LVA]
(RX band center) 5 • Channel : 1-4
• Receiving
• Click the [Reload (F5)] button to check on
the "I/O Check window" as below.
[LVIN]
(On the "I/O
Check window")
3.2–4.4 V*
3.4–4.4 V**
3.5–4.5 V***
(Verify)
(RX band high) 6 • Channel : 1-5
• Receiving
3.2–4.4 V*
3.4–4.4 V**
3.5–4.5 V***
(Verify)
(TX) 7 • Channel : 1-6
• Transmitting
3.2–4.4 V*
2.5–3.5 V**
3.2–4.4 V***
(Verify)
REFERENCE
FREQUENCY
1 • Channel : 1-7
• Transmitting
• Loosely couple a frequency counter to the
antenna connector.
[REF]
470.000000
MHz*
520.000000
MHz**
400.000000
MHz***
(±50 Hz)
*; [Low band] **; [High band] ***; [350 MHz band]