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Icom
Icom IC-M605 fixed-mount VHF marine radio with DSC on channel 70 and dual-channel AIS receive, rated 25W output.
Technical
| Frequency range TX | 156.025–161.600 MHz |
|---|---|
| Frequency range RX | 156.050–163.275 MHz |
| CH70 | 156.525 MHz |
| AIS1, 2 | 161.975, 162.025 MHz |
| Usable channels | USA, CAN, INT, WX channels |
| Type of emission | 16K0G3E (FM), 16K0G2B (DSC) |
| Power supply requirement | 13.8 V DC (11.7–15.9 V DC) |
| Current drain TX 25 W output | 6.0 A |
| Current drain RX Max. audio | 8.0 A |
| Operating temperature range | –20°C to +60°C; –4°F to +140°F |
| Antenna impedance | 50 Ω (SO-239) |
| Weight (approximately) | 1510 g; 3.3 lb |
| Output power (at 13.8 V DC) | 25 W, 1 W |
| Max. frequency deviation | ±5 kHz |
| Frequency tolerance | ±5 ppm |
| Spurious emissions | Less than –70 dBc (at 25 W) |
| Residual modulation | More than 40 dB |
| Adjacent channel power | More than 70 dB |
| Intermediate frequency | 30.15 MHz, 450 kHz (1st/2nd) |
| CH70 intermediate frequency | 21.70 MHz, 450 kHz (1st/2nd) |
| Sensitivity (at 12 dB SINAD) | 0.22 μV typical |
| CH70 sensitivity (1% BER) | 0.71 μV emf typical |
| Adjacent channel selectivity | More than 80 dB |
| CH70 adjacent channel selectivity (1% BER) | More than 80 dBμ emf |
| Spurious response | More than 77 dB |
| CH70 spurious response (1% BER) | More than 73 dBμ emf |
| Intermodulation | More than 80 dB |
| CH70 intermodulation (1% BER) | More than 73 dBμ emf |
| Hum and noise | More than 40 dB |
| Audio output power (at 10% distortion) | More than 15 W with 4Ω external speaker |
Overview
The IC-M605 is a fixed-mount VHF marine radio transmitting from 156.025 to 161.600MHz and receiving from 156.050 to 163.275MHz, with dedicated DSC on channel 70 (156.525MHz) and dual AIS receive channels (161.975/162.025MHz) for tracking nearby vessels. It switches between 25W and 1W RF output from a 13.8V DC supply, drawing up to 6.0A on transmit, and drives an external 4 ohm speaker at more than 15W audio output. The radio connects through a 50 ohm SO-239 antenna port, weighs 1510g, and operates across -20C to +60C.
Questions
The IC-M605 transmits at 25 W or 1 W at 13.8 V DC.
Yes. It has dedicated CH70 (DSC) on 156.525 MHz and receives both AIS channels at 161.975 MHz and 162.025 MHz.
Approximately 1510 g (3.3 lb).
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