Icom IC-M25 Service Manual

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SECTION 1 SPECIFICATIONS
M GENERAL
IC-M25 (Except [CHN]) D
• Frequency coverage (MHz):
TX 156.025–157.425
RX 156.050–163.275
• Mode: FM (16K0G3E)
• Power supply voltage : 3.7 V DC nominal (negative ground)
• Current drain (approximately):
TX (5 W/1.0 W) 2.3 A/0.9 A
Maximum audio (internal SP) 0.30 A
Maximum audio (external SP) 0.20 A
• Frequency stability: ±10 ppm
• Operating temperature:
–20°C to +60°C (–4°F to +140°F)
• Dimensions (projections not included):
56.6 (W) × 134.2 (H) × 30.5 (D) mm,
2.2 (W) × 5.3 (H) × 1.2 (D) inch
• Weight: 220 g, 7.8 oz (approximately)
(including the supplied antenna and belt clip)
IC-M25EURO/IC-M25 only [CHN] D
• Frequency coverage (MHz):
TX 156.000–161.450 [EUR], [FRG], [UK] and [CHN]
156.000–161.600 [HOL]
156.025–157.425 [AUS]
RX 156.000–163.425 [EUR], [FRG], [HOL], [UK] and [CHN]
156.300–162.025 [AUS]
• Mode:
FM (16K0G3E)
• Power supply voltage:
3.7 V DC nominal (negative ground)
• Current drain (approximately):
TX (5.0 W/1.0 W/0.5 W*) 2.3 A/0.9 A/0.7 A*
*For only [FRG]
Maximum audio (internal SP) 0.30 A
Maximum audio (external SP) 0.20 A
• Frequency stability:
±1.5 kHz [EUR], [FRG], [HOL], [UK] and [CHN]
±10 ppm [AUS]
• Operating temperature:
–15°C to +55°C [EUR], [FRG], [HOL], [UK] and [CHN]
–10°C to +55°C [AUS]
• Dimensions (projections not included):
56.6 (W) × 134.2 (H) × 30.5 (D) mm,
2.2 (W) × 5.3 (H) × 1.2 (D) inch
• Weight (approximately):
220 g, 7.8 oz (including the supplied antenna and belt clip)
M TRANSMITTER
IC-M25 (Except [CHN]) D
• Output power: 5 W (approximately)/1 W
• Modulation system: Variable reactance frequency modulation
• Maximum frequency deviation:
±5 kHz
• Adjacent channel power:
70 dB
• Spurious emissions: –68 dBc typical
• Residual modulation: 40 dB
• Audio frequency response:
+1 dB to –3 dB of 6 dB octave from 300–3000 Hz
IC-M25EURO/IC-M25 only [CHN] D
• Output power: 5 W (approximately)/1 W/0.5 W*
*For only [FRG]
• Modulation system: Variable reactance frequency modulation
• Maximum frequency deviation:
±5 kHz
• Adjacent channel power:
70 dB
• Spurious emissions:
0.25 µW [EUR], [FRG], [HOL], [UK] and [CHN]
0.25 µW typical [AUS]
• Residual modulation: 40 dB
• Audio frequency response:
+1 dB to –3 dB of 6 dB octave from 300–3000 Hz
M RECEIVER
IC-M25 (Except [CHN]) D
• Sensitivity : 0.25 µV (–12 dBµ) typical (at 12 dB SINAD)
• Squelch sensitivity: 0.25 µV (–12 dBµ) typical (at threshold)
• Intermodulation: 70 dB typical
• Spurious response: 70 dB typical
• Adjacent channel selectivity :
70 dB typical
• Audio output impedance:
12 Ω (internal speaker)
4 Ω (external speaker)
• Audio output power: Internal SP 0.55 W typical
(at 10% distortion) External SP 0.30 W typical
IC-M25EURO/IC-M25 only [CHN] D
• Sensitivity : –6 dBµ emf typical (at 20 dB SINAD)
• Squelch sensitivity: –6 dBµ emf typical (at threshold)
• Intermodulation: 68 dB [EUR], [FRG], [HOL], [UK] and [CHN]
65 dB [AUS]
• Spurious response: 70 dB [EUR], [FRG], [HOL], [UK] and [CHN]
65 dB [AUS]
• Adjacent channel selectivity :
70 dB [EUR], [FRG], [HOL], [UK] and [CHN]
65 dB [AUS]
• Audio output impedance:
12 Ω (internal speaker)
4 Ω (external speaker)
• Audio output power: Internal SP 0.55 W typical (at 1 kHz)
(at 10% distortion) External SP 0.20 W

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