Software Adjustment - Icom IC-M73 Service Manual

5-2 SOFTWARE ADJUSTMENT (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].
ADJUSTMENT
PLL LOCK 1 • Operating CH. : 16
VOLTAGE • Receiving
(Verify)
2 • Operating CH. : 16
• Connect a dummy load or RF power
meter to the antenna connector.
• Transmitting
REFERENCE 1 • Operating CH. : 16
• Connect the RF power meter or a 50 Ω
FREQUENCY
[Ref Freq] dummy load to the antenna connector.
• Transmitting
ADJUSTMENT CONDITION
• I/O Check window
(The values shown above are exsample only.
Each transceiver has own values.)
MEASUREMENT
UNIT OPERATION
PC Click the "I/O check button"
screen on the ADJ-M73's screen (see
page 5-3) to open the I/O check
window as below.
Top Loosely couple the frequency
Panel counter to the antenna conector.
* * *
Lock voltage
appears here
5 - 3
VALUE
1.55–2.65 V
(Verify)
156.8000 MHz