| Large LCD with dot-matrix characters The ICOM M504 has a 168-charactor, full-dot matrix display that allows you to easily view a variety of information, such as GPS data, DSC emergency data, etc. The large buttons and knobs provide user friendly operation. Position Request and Position Report Over and above the DSC, your own and other ships? position data can be exchanged with the position request or position report functions. The received position information can be transferred to external navigation equipment*. In addition, the polling (request/ reply) function checks whether a specific ship is within the communications range. * External GPS receiver and navigation equipments which accept NMEA 0183 format are required. Superior receiver performance The IC-M504 has excellent receive specifications of 80dB (typical) for intermodulation rejection, adjacent channel selectivity, and 0.22æV (typical) high sensitivity. The IC-M504?s superior receiver provides excellent resistance to intermodulation and allows you to catch a weak signal between strong stations. Excellent audio output power The extra large speaker is mounted into a wellspaced housing, producing greater sound than the specified 4.5W output power. You can get clear and loud reception without requiring repetition of the message, even over the engine or other background noise. 25W hailer/RX speaker and auto foghorn When connected to a hailer horn or external speaker on the deck or tower, you can make an announcement on-board from the microphone. The RX speaker function, ?receiver-repeater?, allows you to monitor the received audio. Four foghorn patterns are also available for the automatic foghorn. Other features - Dual/tri-watch function for monitoring Ch.16 and/or call channel
- Instant access to Ch. 16 and call channel
- 7 levels adjustable backlit display and keypad
- Convenient ?TAG? scanning function with simple add/delete
- Optional Voice Scrambler, UT-112 for private communication
- Supplied speaker microphone to draw the speaker to your ear
- Rear panel microphone version available
Ask your dealer for details - Black or gray color versions
| General | Frequency range ÿÿTx ÿÿRx | : | ÿ 156.025 - 157.425MHzÿ 156.050 - 163.275MHz | | Type of emission | : | 16K0G3E (FM), 16K0G2B (DSC) | | Usable channels | : | USA, INT, CAN, WX channels | | Power supply requirement | : | 13.8V DC ñ15% | Current drain (at 13.8V DC) ÿÿTransmit ÿÿReceive | : | ÿ 5.5A (25W output) 1.5A (Max. AF) | | Operating temperature range | : | ?20øC to +60øC; ?4øF to +140øF | | Antenna impedance | : | 50O (SO-239) | Dimensions (W?H?D) (projections not included) | : | 165 ? 110 ? 123.2 mm 61/2?411/32?427/32 in. | | Weight (approx.) | : | 1.45kg; 3.20 lb | NMEA formats ÿÿInput ÿÿOutput | : | ÿ RMC, CGA, GNS, GLL DSC, DSE | | Transmitter | | Output power | : | 25W or 1W (at 13.8V DC) | | Modulation system | : | Variable reactance | | Max. freq. deviation | : | ñ 5.0kHz | | Frequency error | : | ñ 10.0ppm | | Spurious emissions | : | 70dBc | | Residual modulation | : | 40dB | | Adjacent channel power | : | 70dB | | Receiver | Intermediate freq. ÿÿ1st ÿ ÿÿ2nd | : | ÿ 21.7MHz 31.05MHz (Ch 70) 450KHz | | Sensitivity | : | 0.22æV typical (at 12db SINAD) | | Squelch sensitivity | : | 0.32æV typical (threshold) | | Adjacent channel selectivity | : | 80dB typical (DSC 75dB) | | Spurious response | : | 80dB typical (DSC 75dB) | | Intermodulation rejection | : | 80dB typical (DSC 75dB) | | Hum and noise ratio | : | 40dB | | Audio output power | : | 4.5W typ. at 10% distortion with a 4O load | Measurement made in accordance with TIA/EIA-603. All stated specifications are subject to change without notice or obligation. |