Superior receiver performance Submersible construction (1m depth for 30 minutes) The IC-M604A has excellent receive specifications* which allow a weak signal a better chance of being heard when louder signals are around it. The powerful 5.0W (typical) audio output from the front facing speaker further increases the audibility and quality of received calls. The IC-M604A, including the supplied microphone, withstands submersion in up to 1.0m depth of water for 30 minutes. It is equivalent to IPX7 waterproofing.* * More than 80dB for intermodulation rejection and adjacent channel selectivity, and...

Optional fully integrated COMMANDMICIII™ Front and rear panel microphone connection The speaker microphone can be detached from the front panel and can be connected to the rear panel without any modification. An optional 6.1m (20ft) microphone extension cable, OPC-1000, is available. The optional COMMANDMICIII™ provides a 2nd and/or 3rd station capability to operate the IC-M604A from up to 18.3m* (60ft) away such as the cabin and/or fly bridge. * Requires use of two optional OPC-1541 extension cables. Full control and intercom capability Transparent installation image RX speaker function The...

SPECIFICATIONS DIMENSIONS • Weight (approx.) : 1.4kg ; 3.09 lb • NMEA formats : Input RMC, GGA, GNS, GLL, VTG Output DSC, DSE : 25W or 1W (at 13.8V DC) : Variable reactance : ±5.0kHz : ±0.3kHz : Less than –70dBc : More than 40dB : More than 70dB RECEIVER • Intermediate freq. 30.15MHz 21.7MHz (Ch70) 2nd 450kHz • Sensitivity : 0.22μV typ. (at 12dB SINAD) • Squelch sensitivity : Less than 0.32μV (threshold) • Adjacent Ch. selectivity : More than 80dB • Spurious response : More than 80dB • Intermodulation : More than 80dB • Hum and noise : More than 40dB • Audio output power : 5.0W typ. at 10% distion...