Frequency Adjustment; I/O Check Window - Icom ic-f5021 Service Manual

6-2 FREQUENCY ADJUSTMENT

1) Select an adjustment item using cursor or [↑] / [↓] keys of the PC's keyboard.
2) Set or modify the adjustment value as specifi ed using [←] / [→] keys of the PC's keyboard, then push the [ENTER] key.
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.)
OPERatio
Select the item [RX LVA], then adjust the
voltage (LVIN) using [←] / [→] keys of the
PC's keyboard.
Select the item [TX LVA], then adjust the
voltage (LVIN) using [←] / [→] keys 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
1.1 V
Other than
[F5026], [F5026H]
1.7 V
[F5026], [F5026H]
1.06 V
Other than
[F5026], [F5026H]
1.4 V
[F5026], [F5026H]
3.0–4.0 V
2.5–3.5 V
174.000000 MHz
Lock voltage