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Icom M803 SSB Radio
The Icom 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.
Icom M803 Recreational SSB Radio
The Icom 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.
Model: M803
- Large Color Display
- Intuitive User Interface
- Emergency Distress Button
- Dedicated DSC Scanning
- Two Minute Memory Instant Replay Memory
- NMEA 0183 Version 4.10 data input/output (4800-38400 bps)
| Item | Specification |
|---|---|
| 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 |
| Frequency Range (DSC) | 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) (* H3E receive only) |
| Mode (DSC) | J2B |
| Antenna Impedance | 50Ω (unbalanced) |
| Usable Temperature Range | –20°C to +55°C; –4°F to +131°F |
| 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) |
| Dimensions (Main Unit) | 240 × 94 × 238 mm, 9.4 × 3.7 × 9.4 in (W × H × D) |
| Dimensions (Controller) | 274 × 114 × 86 mm, 10.8 × 4.5 × 3.4 in (W × H × D) |
| Weight (Main Unit) | 4.41 kg, 9.7 lb (approximate) |
| Weight (Controller) | 760 g, 1.7 lb (approximate) |
HF email operation with frequency, mode and bandwidth memorization*
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.
| Transmitter | Specifications |
|---|---|
| Output power | 150, 100, 60, 20 W PEP (selectable) |
| Spurious emissions | Less than –62 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 |
| Receiver | Frequency Range | at 20 dB SINAD | at 10 dB S/N |
|---|---|---|---|
| J3E, A1A | 0.5–1.5999 MHz | 30 dBμV emf | 16 dBμV |
| 1.6–1.7999 MHz | 13 dBμV emf | –1 dBμV | |
| 1.8–29.9999 MHz | 8 dBμV emf | –6 dBμV | |
| J2B, F1B | 1.6–1.7999 MHz | 4 dBμV emf | –10 dBμV |
| 1.8–29.9999 MHz | –1 dBμV emf | –15 dBμV | |
| H3E | 0.5–1.5999 MHz | 44 dBμV emf | 30 dBμV |
| 1.6–1.7999 MHz | 30 dBμV emf | 16 dBμV | |
| 1.8–3.9999 MHz | 24 dBμV emf | 10 dBμV | |
| DSC Sensitivity (J2B) | 6 dBμV emf (at 20 dB SINAD) –8 dBμV (at 10 dB S/N) –6 dBμV emf (at 1% BER) |
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| Spurious Response | TX/RX: More than 70 dB (0.5–29.9999 MHz) DSC: More than 70 dB |
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| Audio Output Power | 4.0 W at 10% distortion with a 4 Ω load | ||
| Clarity Variable Range | ±150 Hz |
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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.
What is SSB Radio?
SSB, short for Single Sideband, is a radio communication method that transmits information using only one sideband of a radio frequency signal, along with the carrier wave suppressed. This makes it more efficient than traditional AM (Amplitude Modulation) which transmits both sidebands and the carrier. SSB radio is commonly used for long-distance communication, especially in marine radio applications.