Frequency Adjustments - Icom IC-M35 Service Manual

5-2 FREQUENCY ADJUSTMENTS

Select an adjustment item using [↑] / [↓] keys, then set to the specifi ed value using [←] / [→] keys on the connected PC's keyboard.
ADJUSTMENT
ADJUSTMENT
PLL LOCK 1
VOLTAGE
(VERIFICATION)
2
REFERENCE 1
FREQUENCY
[Ref. Freq.]
(Loose Coupling)
JIG cable
TRANSCEIVER'S
ITEM CONDITION
• CH.
• Receiving
[LVIN]
(I/O check
• CH.
window)
• TX power
• Transmitting
• CH.
• TX power
• Transmitting
FREQUENCY COUNTER
(0.1–300 MHz)
: 16 1) Connect an RF power meter (or a
Dummy load) to the antenna connector.
2) Verify that the lock voltage is in the
: 16
specified range on the "I/O check
: Low
window" (see the illust below).
: 16 1) Connect an RF power meter (or a
: Low
Dummy load) to the antenna connector.
2) Loose couple a Frequency counter to
the antenna connector.
3) Adjust the TX frequency.
RF POWER METER
(10 W/50 Ω)
I/O CHECK WINDOW
(The values shown in the above screen are example only.
Each transceiver has their own values.)
5 - 3
OPERATION VALUE
1.9–2.9 V
(Verify)
1.8–2.8 V
(Verify)
156.8000 MHz
LOCK VOLTAGE
Click to reload
the parameter