ICOM IC-M504 Marine VHF Radio, 25/1 watts output, water proof, black casing
Icom Part Number: ic-m504 (black casing)
Additional ICOM IC-M504 Marine VHF Radio Information: - ICOM IC-M504 Marine VHF Radio Features and Benefits - ICOM IC-M504 Marine VHF Radio User Manual
Practical Sailor has selected the Icom COMMANDMICIII as a 2009 Editor's Choice product. IPX8 Submersible PLUS (1.5m depth for 30 minutes) The IC-M504 withstands submersion in up to 1.5m depth of water for 30 minutes. It is equivalent to the IPX8 standard. All products are rigorously checked to pass the quality test at the factory.
ICOM IC-M504 Marine VHF Radio has Large LCD with dot-matrix characters The IC-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. ICOM IC-M504 Marine VHF Radio is ITU Class D DSC The IC-M504 has built-in class D DSC, which enables you to constantly monitor channel 70. This functionality provides users at sea with the peace of mind that they can call for help by pressing the “Distress” button if the need arises.
ICOM IC-M504 Marine VHF Radio features 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. ICOM IC-M504 Marine VHF Radio Has Superior receiver performance The IC-M504 has excellent receive specifications of 80dB (typical) for intermodulation rejection, adjacent channel selectivity, and 0.22µV (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.
ICOM IC-M504 Marine VHF Radio Provides Excellent audio output power The extra large speaker is mounted into a well spaced 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.
Rear panel microphone version* With this version, the microphone connector is drawn from the rear panel and a 6.1m (20ft) microphone extension cable is supplied to allow you clean and neat panel installation. * Ask your dealer for details
Other ICOM IC-M504 Marine VHF Radio 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
- Weather channels with weather alert function
- Black or gray color versions
General ICOM IC-M504 Marine VHF Radio Specifications |
Frequency range Tx Rx |
156.025 - 157.425MHz 156.050 - 163.275MHz |
Type of emission |
16K0G3E, 16K0G2B |
Usable channels |
USA, INT, CAN, WX channels |
Power supply requirement |
13.8V DC ±15% |
Current drain (at 13.8V DC) Transmit Receive |
5.5A (25W output) 1.5A (Max. AF) |
Operating temperature range |
–20°C to +60°C;
–4°F to +140°F |
Antenna impedance |
50Ω (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 Input Output |
RMC, CGA, GNS, GLL DSC, DSE |
ICOM IC-M504 Marine VHF Radio Transmitter |
Output power |
25W or 1W (at 13.8V DC) |
Modulation system |
Variable reactance |
Max. freq. deviation |
± 5.0kHz |
Frequency error |
± 10.0ppm |
Spurious emissions |
Less than -70dBc (at 25W) |
Residual modulation |
More than 40dB |
Adjacent channel power |
More than 70dB |
ICOM IC-M504 Marine VHF Radio Receiver |
Intermediate freq. 1st 2nd |
21.7MHz 31.05MHz (Ch 70) 450KHz |
Sensitivity |
0.22µV typical (at 12db SINAD) |
Squelch sensitivity |
0.32µV typical (threshold) |
Adjacent Ch. selectivity |
80dB typical (DSC 75dB) |
Spurious response |
80dB typical (DSC 75dB) |
Intermodulation rejection |
80dB typical (DSC 75dB) |
Hum and noise ratio |
More than 40dB |
Audio output power |
4.5W typ. at 10% distortion with a 4Ω load |
Measurement made in accordance with TIA/EIA-603. All stated specifications are subject to change without notice or obligation.
Optional fully integrated COMMANDMICΙΙΙ™Full control 2nd station capability The COMMANDMICΙΙΙ is a remote control for the IC-M504 that may be positioned up to 18.3m (60ft) away from the IC-M504. All M504 functions, including distress call, DSC, and foghorn, are available. The COMMANDMICΙΙΙ may also be used as an intercom with the IC-M504. Multi function "Jog" dial A newly designed multi function Jog dial gives you quick and easy access to many M504 settings, including operating channel, volume, squelch, menu settings and more. Other ICOM IC-M504 Marine VHF Radio features
- Full dot-matrix LCD with 7-step
dimmer setting
- 2.8W (typical) external speaker terminal
- Submersible PLUS (1.5m depth
for 30 minutes)
- Extra large 45mm (d) speaker for superior audio
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