Lightweight and Compact Body
The IC-M25 is the lightest weight floating marine radio* (218 g; 7.7 oz). Its slim depth (30.5 mm, 1.2 in) can be comfortably operated with one hand. These features make it easier to equip, carry and operate for a long time.
*As of June 2022, researched by Icom.
Float’n Flash™
If you accidentally drop the IC-M25 into the water, it will float, flash and sound an alarm. The buoyancy, the flashing light, and the sound reduce the risk of loss at sea.
11 Hours of Battery Life
The built-in 1570 mAh (typical) Li-ion battery realizes 5 Watts (approx.) output power and 11 hours of operation*.
* Typical operation with Tx (Hi): Rx: Standby=5:5:90
700 mW Audio Output
The IC-M25 provides a powerful 700 mW (typical) audio output and received voice can be heard loud and clear.
Easy-to-Use
On the front panel, the function keys are good-sized and simply laid out. The large display features big channel numbers supporting 4-digit channels and automatic backlighting.
USB Charging (Micro-B USB type)
The IC-M25 adopts a micro-B USB charger connector* widely used on mobile devices. The built-in Li-ion battery pack can be charged quickly in three hours (approx.).
*The IC-M25 accepts 5 V/1 A (Max.) input. Use of third-party products is not guaranteed.
Optional Speaker-Microphone, HM-213
The optional waterproof speaker-microphone, HM-213, provides commercial grade convenience while mounting the radio on the waist. The radio floats even when the HM-213 is attached.
Other Features
- IPX7 waterproof construction
(1m depth of water for 30 minutes) - 4-step battery life indicator
- 2-step power save function
- Weather channel with weather alert
- Dual/Tri-watch functions
- Instant access to Ch 16 or programmable call channel
- Favorite channel function
- Monitor function opens noise squelch
- Auto scan function
- Display auto backlighting
- AquaQuake™ prevents audio degradation from a water-logged speaker
Frequency rangeTx
156.025–157.425 MHz
Rx
156.050–163.275 MHz
Usable channel groups
INT, USA, CAN, WX channels
Type of emission
16K0G3E (FM)
Power supply voltage
3.7 V DC nominal
Current drainTx
2.3 A
Rx (Internal SP/External SP)
400 mA/200 mA (Max. audio)
Operating temperature range
–20°C to +60°C; –4°F to +140°F
Antenna impedance
50 Ω
Dimensions (W×H×D)
(Projections not included)
56.6×134.2×30.5 mm;
2.2×5.3×1.2 in
Weight (approximately)
218 g; 7.7 oz (With antenna and MB-133）
Output power
5 W (approximate)/1 W
Max. frequency deviation
±5.0 kHz
Frequency stability
±10 ppm
Spurious emissions
–68 dBc typical
Adjacent channel power
70 dB
Residual modulation
40 dB
Sensitivity
0.25 μV typical (at 12 dB SINAD)
Squelch sensitivity
0.25 μV typical (at threshold)
Adjacent channel selectivity
70 dB typical
Spurious response
70 dB typical
Intermodulation
70 dB typical
Audio output power
(at 10% distortion)Internal SP
700 mW typical (8 Ω load)
External SP
300 mW typical (4 Ω load)
Ingress Protection Standard
Water
IPX7 (Waterproof protection)
