ICOM IC-M25 Marine VHF Handheld Transceivers
The Icom IC-M25 is a VHF marine transceiver designed for use in harsh marine environments. Here are some key features of this handheld radio:
Lightweight and Compact: The IC-M25 weighs only 218 grams (7.7 ounces) and has a slim depth of 30.5 mm (1.2 inches), making it comfortable to operate with one hand. It’s easy to carry and use for extended periods.
Float’n Flash™: If accidentally dropped into the water, the IC-M25 will float, emit a flashing light, and sound an alarm. This feature reduces the risk of losing the radio at sea.
Battery Life: The built-in 1570 mAh Li-ion battery provides approximately 11 hours of operation with 5 watts of output power.
Audio Output: The IC-M25 delivers a powerful 700 mW (typical) audio output, ensuring clear reception of received voice.
User-Friendly Design: The front panel features large function keys and a big display with automatic backlighting. Channel numbers support 4-digit channels.
USB Charging: The micro-B USB charger connector allows quick charging in approximately three hours.
Optional Accessories: Consider using the waterproof speaker-microphone (HM-213) for added convenience while mounting the radio on your waist. Even with the accessory attached, the IC-M25 remains buoyant.
Other Features:
- IPX7 waterproof construction (submersible up to 1 meter for 30 minutes).
- Weather channel with weather alert.
- Dual/Tri-watch functions.
- Instant access to Channel 16 (emergency channel) or a programmable call channel.
- Favorite channel function.
- Monitor function to open noise squelch.
- AquaQuake™ to prevent audio degradation from water-logged speakers.
Remember, the IC-M25 is a reliable companion for maritime communication, whether you’re out at sea or on land.
Specifications
General
| Frequency range | TX | 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 drain | TX | 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) | |
Applicable IP Rating
| Ingress Protection Standard | |
|---|---|
| Water | IPX7 (Waterproof protection) |
・ AC adapter and USB cable*
・ Belt clip, MB-133
・ Antenna
・ Hand strap
* Not supplied or may differ, depending on version.
Datasheet IC-M25 Marine VHF Handheld Transceiver
