Alinco DJ-MX1
A 5 W marine VHF handheld, IPX7 waterproof, transmitting across 156.025-157.425 MHz and weighing 288 g with battery.
One stop shop for complete navigation & communication solutions.
Icom

An MF/HF marine radio with Class E DSC, a distress button, an integrated GPS receiver and a 4.3 inch TFT display, for long-range communication at sea.
Technical
| Frequency range (Receive) | 500 kHz–29.9999 MHz (Continuous) |
|---|---|
| Frequency range (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 Frequency | 2.1875, 4.2075, 6.3120, 8.4145, 12.5770, 16.8045 MHz |
| Mode (TX/RX) | J3E (USB, LSB), J2B (AFSK), F1B (FSK), A1A (CW), H3E (AM receive only) |
| DSC Mode | J2B |
| Antenna impedance | 50Ω (unbalanced) |
| Usable temperature range | –20°C to +55°C |
| Frequency stability (TX/RX) | ±10 Hz (below 29.999 MHz) |
| Frequency stability (DSC) | ±10 Hz |
| Power supply requirement | 13.6 V DC ±15% (Negative ground) |
| Current drain - Receive | Less than 3.0 A (Maximum audio output) |
| Current drain - Transmit | 30 A (Maximum output power) |
| Main unit dimensions | 240 × 94 × 238 mm (9.4 × 3.7 × 9.4 in) |
| Controller dimensions | 274 × 114 × 86 mm (10.8 × 4.5 × 3.4 in) |
| Main unit weight | 4.41 kg (9.7 lb) |
| Controller weight | 760 g (1.7 lb) |
| Output power | 150, 100, 60, 20 W PEP (selectable) |
| Spurious emissions | Less than –62 dB (Peak output power) |
| Spurious emissions (#21 only) | Less than –65 dB (Peak output power) |
| Carrier suppression | More than 40 dB (Peak output power) |
| Unwanted sideband suppression | More than 55 dB (Peak output power with 1500 Hz AF Input) |
| Microphone impedance | 600Ω |
| Audio output power | 4.0 W at 10% distortion with a 4 ω load |
| Clarity variable range | ±150 Hz |
| Water (IC-M803 controller unit) | IPX7 (1 m depth water for 30 minutes) |
Overview
The M803 is the long range digital communication radio for any cruiser. Reach both marine and ham frequencies with the Class E DSC MF/HF certification. It is packed with features to keep users safe such as a distress call button, audio replay, GPS and more. The intuitive interface of the color TFT display and the similarity of the user interface of the M605 allows for easy operation between the two radios. The M803 also includes an advanced RF direct simple sampling system that improves higher receiver sensitivity and higher quality audio.
Output Power: |
150W | |
Frequencies: |
0.5-29.99 MHz | |
Channels: |
830 (160 programmable, 72 ITU SSN duplex, 249 ITU SSB simplex, 193 ITU FSK duplex, 160 email) | |
Waterproof: |
IPX7 (controller only) | |
GPS: |
Built-in |
Users will like the large 4.3″ wide viewing angle color TFT display. Clearly see the high resolution display icons on the LCD screen from numerous positions with the nearly 180 degree wide viewing angle, which provides various installation placement possibilities. The night mode display offers readability in low-light conditions.
Smoothly operate and sail with the M803’s large main dial and keys to access functions such as accessing MMSI numbers, vessel numbers, and channels with the full alpha-numeric keypad. Assign one of the software key functions to the microphone’s programmable button for quick access. Additionally the head unit offers programmable keys for customizable access.
The M803’s big and easily identifiable emergency distress button is encased in a spring loaded cover. Once pressed a digital distress signal is sent with GPS coordinates and calls for help to other ships or coast stations. The GPS receiver offers GPS, GLONASS, SBAS, position data, speed and UTC data when using the supplied GPS antenna. Position data may be output from the NMEA 0183 port for use with other devices.
The dedicated DSC watch-keeping receiver continuously scans the six distress channels in rotation. If you are in process with a DSC call and receive another call, the M803 can switch between calls with the Multiple Task Mode function. 100 MMSI numbers (75 individual/25 group) for DSC calls can be stored with a 10-character name.
The Instant Replay Function allows users to replay up to two minutes of previous conversations or calls. The function constantly loops and records over older audio.
Questions
The IC-M803 receives continuously from 500 kHz to 29.9999 MHz and transmits across marine HF bands from 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 and 25.0-27.5000 MHz.
The IC-M803 offers selectable output power of 150, 100, 60 or 20 W PEP.
Yes. The IC-M803 controller unit carries an IPX7 rating, tested for 1 metre of water depth for 30 minutes.
The IC-M803 main unit weighs approximately 4.41 kg and measures 240 x 94 x 238 mm; the controller weighs approximately 760g and measures 274 x 114 x 86 mm.
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