Icom IC-GM1600 Marine Radio User Manual


 
ADJUSTMENT ADJUSTMENT CONDITION
MEASUREMENT
VALUE
UNIT OPERATION
PLL LOCK
VOLTAGE
1 • Operating CH. : 16
• Receiving
PC
screen
Check the LVIN Data cell's
value in the I/O check
window.
Click the "I/O check button"
on the CS-M90/GM1600
ADJ's screen (see page
5-3) to open the I/O check
window as below.
1.5–3.0 V [USA]
1.85–3.35 V [Others]
(Verify)
2 • Operating CH. : 16
• RF power : Low
• Transmitting
1.4–2.9 V
(Verify)
REFERENCE
FREQUENCY
[Ref. Freq.]
1 • Operating CH. : 16
• Connect the RF power meter or a 50
dummy load to the antenna connector.
• RF power : Low
• Transmitting
Top
Panel
Loosely couple the frequency
counter to the antenna
conector.
156.8000 MHz
±500 Hz
PLL LOCK VOLTAGE
NOTE: The above screen is an example.
Each transceiver has its own specific values.
5-2 SOFTWARE ADJUSTMENT (FREQUENCY)
Select the adjustment item with [
] / [
] keys, then set the value with [
] / [
] keys on the connected PC.
5 - 4