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Icom IC-M25 Service Manual

Icom IC-M25
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6-3
ADJUSTMENT
TRANSCEIVER’S
CONDITION
OPERATION
ADJUSTMENT
ITEM
VALUE
TX OUTPUT
POWER
(High)
1 • CH.: 16
Transmitting
Connect an RF power meter to the
antenna connector. [RF Power (High)]
4.5 W
(L_High)* 2 [RF Power (L_High)] 2.5 W
(Low) 3 [RF Power (Low)] 0.75 W
(E_Low)* 4 [RF Power (E_Low)] 0.45 W
*For only [FRG] version.
6-4 TRANSMIT 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
TRANSCEIVER’S
CONDITION
OPERATION
ADJUSTMENT
ITEM
VALUE
RX SENSITIVITY
1 NOTE: When "RX SENSITIVITY" is re-adjusted, "SQUELCH" must be re-adjusted too.
• CH.: 16
• Receiving
Connect an SSG to the antenna connector and
set it as;
Frequency: 156.800 MHz
Level
: +30 dBµ (–77 dBm)
Modulation: 1 kHz
Deviation: ±3.0 kHz
[BPF]
Push [ENTER]
on [BPF].
(Automatic
adjustment)
SQUELCH 1 NOTE: When "RX SENSITIVITY" must be adjusted before "SQUELCH." And when "RX SENSITIVITY" is
re-adjusted, "SQUELCH" must be re-adjusted too.
• CH.: 16
• Receiving
Connect an SSG to the antenna connector and
set it as;
Frequency: 156.800 MHz
Level
: –4 dBµ
(–111 dBm)
Modulation: 1 kHz
Deviation: ±3.0 kHz
[Noise]
Push [ENTER]
on [Noise].
(Automatic
adjustment)
The output level of the standard signal generator (SSG) is indicated as the SSG’s open circuit.
6-3 RECEIVE 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].

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Icom IC-M25 Specifications

General IconGeneral
Battery typeBP-282
Battery life (max)11 h
Battery low indicationYes
Number of batteries supported1
PurposeMarine Radio Service
Operating frequency156.025 - 157.425 MHz
Display typeLCD
USB connector typeMicro-USB B
Antenna connector typeFA-SC59V
Product colorBlack, White
Waterproof up to1 m
International Protection (IP) codeIPX7
Operating temperature (T-T)-20 - 60 °C
Number of batteries included1 pc(s)
Weight and Dimensions IconWeight and Dimensions
Depth30.5 mm
Width56.6 mm
Height134.2 mm
Weight220 g

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