Icom IC-M25 Service Manual

6-2
ADJUSTMENT CONDITION
REFERENCE FREQUENCY
TX OUTPUT POWER
FM MODULATION
RX SENSITIVITY
• I/O Check screen
(The values shown above are exsample only.
Each transceiver has own values.)
The Lock Voltage is displayed here.
SQUELCH
M ADJUSTMENT UTILITY SCREEN
ADJUSTMENT
TRANSCEIVER’S
CONDITION
OPERATION
ADJUSTMENT
ITEM
VALUE
PLL LOCK
VOLTAGE
VERIFICATION
1 • CH.: 16
• Receiving
1) Connect an RF power meter to the
antenna connector.
2) Click the [Update (F5)] button to check on
the "I/O Check screen" as below.
[LVIN]
(On the "I/O
Check screen")
1.65 V ±0.5 V
2 • CH.: 16
• Transmitting
1.70 V ±0.5 V
REFERENCE
FREQUENCY
1 • CH.: 16
• Transmitting
• Loosely couple a frequency counter to the
antenna connector. [Ref. Freq.]
156.800000
MHz
(±500 Hz)
6-2 FREQUENCY ADJUSTMENTS
1) Select an adjustment item using [
↑
]/[
↓
] on the PC's keyboard.
2) Set or modify the adjustment value as specified using [
←
]/[
→
] on the PC's keyboard, and then push [ENTER].
ADJUSTMENT CONDITION
REFERENCE FREQUENCY
TX OUTPUT POWER
FM MODULATION
RX SENSITIVITY
• I/O Check screen
(The values shown above are exsample only.
Each transceiver has own values.)
The Lock Voltage is displayed here.
SQUELCH

Icom IC-M25 Specifications

General

Battery type	BP-282
Battery life (max)	11 h
Battery low indication	Yes
Number of batteries supported	1
Purpose	Marine Radio Service
Operating frequency	156.025 - 157.425 MHz
Display type	LCD
USB connector type	Micro-USB B
Antenna connector type	FA-SC59V
Product color	Black, White
Waterproof up to	1 m
International Protection (IP) code	IPX7
Operating temperature (T-T)	-20 - 60 °C
Number of batteries included	1 pc(s)

Weight and Dimensions

Depth	30.5 mm
Width	56.6 mm
Height	134.2 mm
Weight	220 g