Icom
Icom IC-M804 MF/HF Marine SSB Transceiver
Pickup available at Mercury Yacht Harbour
Usually ready in 2-4 days
Description
The Icom IC-M804 is a long-range MF/HF Class E DSC marine SSB transceiver built for ocean-going sailors and commercial non-GMDSS operators who need dependable communications far beyond VHF range. It is based on the MED approved Class A GMDSS GM800, sharing almost identical functionality apart from its DSC class, and is CE marked for the European Radio Equipment Directive.
A large independent Distress button with a spring-loaded cover sends an automated digital distress call with GNSS coordinates, while a dedicated DSC watch-keeping receiver continuously scans the six distress channels. The 4.3 inch wide viewing angle colour TFT display, directional keypad and soft keys make day-to-day operation straightforward, and the integrated GNSS receiver, NMEA 2000 and NMEA 0183/-HS connectivity tie the radio into the wider vessel network. An IPX7 protected controller and corrosion-resistant construction suit it to harsh maritime conditions, and 12 V and 24 V versions are available.
PRODUCT DETAILS
- Class E DSC MF/HF SSB radio based on the MED approved GM800
- Independent Distress button with spring-loaded cover
- Built-in DSC watch-keeping receiver scanning six distress channels
- 4.3 inch wide viewing angle colour TFT display
- Integrated GNSS receiver, supplied with 5 m cable GNSS antenna
- NMEA 2000 and NMEA 0183/-HS connectivity
- Two minutes instant replay voice recorder
- 125 W (PEP) RF output at AT-141 tuner output
- IPX7 waterproof controller for harsh marine environments
- Hand microphone
- DC power cable
- GNSS antenna
- Remote controller and control cable
- Mounting plates for the main unit
- Mounting bracket kit for the remote controller
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General
| Frequency coverage (Receive) | 500 kHz - 29.9999 MHz (continuous) |
| Frequency coverage (Transmit) | 1.6-2.9999, 4.0-4.9999, 6.0-6.9999, 8.0-8.9999, 12.0-13.9999, 16.0-17.9999, 18.0-19.9999, 22.0-22.9999, 25.0-27.5000 MHz |
| DSC frequencies | 2.1875, 4.2075, 6.3120, 8.4145, 12.5770, 16.8045 MHz |
| Mode (TX/RX) | J3E (USB), J2B (AFSK), F1B (FSK) |
| Mode (RX only) | J3E (LSB), A1A (CW), H3E (AM) |
| Antenna impedance | 50 ohms (unbalanced) |
| Power supply requirement | 10.8-15.6 V (12 V DC), 21.6-31.2 V (24 V DC) (negative ground) |
| Current drain (Receive) | Less than 6 A (12 V) / 3 A (24 V) at max. audio output |
| Current drain (Transmit) | Less than 40 A (12 V) / 20 A (24 V) at max. output power |
| Usable temperature range | -15 C to 55 C |
| Dimensions (Main unit, W x H x D) | 367 x 95 x 260 mm |
| Dimensions (Controller, W x H x D) | 274 x 114 x 86 mm |
| Weight (Main unit) | 8.6 kg (approximate) |
| Weight (Controller) | 760 g (approximate) |
Transmitter
| Output power (1.6-3.9999 MHz) | 85 W pep at tuner output |
| Output power (4.0-27.5000 MHz) | 125 W pep at tuner output |
| Spurious emissions | Less than 50 dB peak output power (at max. power) |
| Carrier suppression | More than 40 dB peak output power (at max. power) |
| Unwanted sideband suppression | More than 55 dB peak output power (at max. power with 1500 Hz AF input) |
Receiver
| Audio output power | 4.0 W at 10% distortion with 4 ohm load |
| Clarity variable range | +/-150 Hz |
| DSC sensitivity | 0 dB microvolt emf (1% error rate) |
Environmental
| Waterproof rating (Controller) | IPX7 (1 m depth of water for 30 minutes) |
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