Frequency Adjustment - Icom IC-F3011 Service Manual Addendum

5-2 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
VOLTAGE
RX 2 • Channel
• Receiving
TX 3 • Channel
• Transmitting
LOCK 1
VOLTAGE
VERIFICATION
2 • Channel
• Receiving
RX
TX 3 • Channel
• Transmitting
REFERENCE 1
FREQUENCY
2 • Channel
• Transmitting
• Connect an RF power meter to the
–
antenna.
: CH.1 • Adjust the [RX LVA] using [←] / [→]
on the PC's keyboard until the "LVIN"
in the "ADJUSTMENT WINDOW"
shows the specifi ed value, then push
[ENTER].
• Set the [RX LVA] to "179", then
push [ENTER].
: CH.1 • Adjust the [TX LVA] using [←] / [→]
on the PC's keyboard until the "LVIN"
in the "ADJUSTMENT WINDOW"
shows the specifi ed value, then push
[ENTER].
• Set the [TX LVA] to "179", then push
[ENTER].
• Connect an RF power meter to the
–
antenna.
: CH.2 • Verify the lock voltage displayed at
the "LVIN" in the "ADJUSTMENT
WINDOW" (see the previous page).
: CH.2
• Loosely couple a frequency counter
–
to the antenna connector.
: CH.1 1) Adjust the frequency using [←] / [→]
on the PC's keyboard.
2) Push [ENTER] to store the adjust
value.
5 - 4
OPERATION
or
or
ADJUSTMENT
VALUE
ITEM
– –
[RX LVA]
3.5 V
(at the "LVIN"
item)
or
"179"
(at the [RX/TX
LVA])
[TX LVA]
– –
0.9–1.5 V
[LVIN]
(Verify)
– –
[REF] 174.0000 MHz