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Class E DSC MF/HF Radio wtih Wide Viewing Angle Color TFT LCD
Reliable Distant Communication Beyond the Horizon
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

Features:

4.3 inch Wide Viewing Angle Color TFT Display
The 4.3 inch color TFT display provides an almost 180 degree very wide viewing angle and displays high resolution characters and function icons. Even when the radio is installed on the instrumental panel, the operator can clearly see the display information from various viewing angles. The night mode display ensures good readability in low light conditions.  Integrated speaker eliminates need to install a separate speaker.

Distress Button for Emergency
If in an emergency situation, the large independent Distress button enables you to immediately send
an automated digital Distress signal, with GPS coordinates, to call for help from other ships or coast stations.

Built-in DSC Watch-Keeping Receiver (Class-E DSC)
The dedicated DSC watch-keeping receiver continuously scans the six distress channels in rotation. A total of 100 MMSI num- bers (75 Individual and 25 Group) for DSC calls can be stored with a 10-character ID name. When you receive a DSC call, while you are in process with another DSC call, the IC-M803 can hold both DSC procedures to switch between the DSC calls with the Multiple Task Mode function.

Two Minutes Instant Replay Memory
The Instant Replay function automatically saves the received audio. You can replay the received audio, and not miss any incoming calls.

Advanced RF Direct Sampling System
Received RF signals are directly converted to digital signals and processed in the Field-Programmable Gate Array (FPGA), mak- ing it possible to simplify circuit construction. It also improves receiver sensitivity, and audio clarity over conventional radio systems.

Integrated GPS Receiver

The GPS receiver is integrated into the IC-M803. Your position data, course, speed and UTC data can be received with a simple connection to the supplied GPS
antenna. The position data can be output from the NMEA 0183 output port for use with other devices.

Intuitive User Interface
A combination of the large main dial and software keys at the bottom of the display, provides simple operation and easy access to often used functions. The ten-key pad enables you to smoothly enter channel numbers, MMSI numbers with ID names and so on. In addition, one of software key functions can be as- signed to the microphone’s programmable button for quick access.

Ready for HF E-mail Operation
The IC-M803 can be set to memorize your HF e-mail access frequency, mode and bandwidth setting into the e-mail channels. Up to 160 e-mail frequency channels, and connection terminals for a PC and e-mail modem are available.

Please ask Sea-Tech Systems about E-Mail options

Other Features

150 W (PEP) of powerful RF output
Optional AT-140 automatic antenna tuner (Requires updated OPC1465 Control Cable)
IPX7 waterproof remote controller head
0.5–29.999 MHz continuous receiver coverage
Matching design with the IC-M605 VHF marine transceiver
NMEA 0183 Version 4.10 data input/output (4800–38400 bps)
Built-in voice scrambler function (Availability depends on the version)

Specifications

General

Frequency coverage
Rx
Tx
DSC

500 kHz–29.9999 MHz (Continuous)
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
2.1875, 4.2075, 6.3120, 8.4145, 12.5770, 16.8045 MHz

Mode
Tx/Rx
DSC

J3E (USB, LSB),
J2B (AFSK),
F1B (FSK),
A1A (CW),
H3E* (AM) (* H3E receive only)
J2B

Antenna impedance
50Ω (unbalanced)

Usable temperature range
-20°C to +55°C, -4°F to +131°F

Frequency stability
Tx/Rx
DSC

±10 Hz (below 29.999 MHz)
±10 Hz

Power supply requirement
13.6V DC ±15% (Negative ground)

Current drain (at 13.6V DC)
Receive
Transmit

Less than 3.0 A (Maximum audio output)
30A (Maximum output power)

Dimensions (Projections not included)
Main unit
Controller

240 × 94 × 238 mm, 9.4 × 3.7 × 9.4 in (W × H × D)
274 × 114 × 86 mm, 10.8 × 4.5 × 3.4 in (W × H × D)

Weight
Main unit
Controller
4.41 kg, 9.7 lb (approximate)
760 g, 1.7 lb (approximate)

Transmitter

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 powerwith 1500 Hz AF Input)

Microphone impedance
600Ω

Receiver

Sensitivity at 20 dB SINAD

J3E, A1A
0.5–1.5999 MHz
1.6–1.7999 MHz
1.8–29.9999 MHz
30 dBμV emf
13 dBμV emf
8 dBμV emf

J2B, F1B
1.6–1.7999 MHz
1.8–29.9999 MHz
4 dBμV emf
–1 dBμV emf

H3E
0.5–1.5999 MHz
1.6–1.7999 MHz
1.8–3.9999 MHz
44 dBμV emf
30 dBμV emf
24 dBμV emf

Sensitivity at 10 dB S/N

J3E, A1A
0.5–1.5999 MHz
1.6–1.7999 MHz
1.8–29.9999 MHz
16 dBμV
–1 dBμV
–6 dBμV

J2B, F1B
1.6–1.7999 MHz
1.8–29.9999 MHz
–10 dBμV
–15 dBμV

H3E
0.5–1.5999 MHz
1.6–1.7999 MHz
1.8–3.9999 MHz
30 dBμV
16 dBμV
10 dBμV

DSC Sensitivity (J2B)
6 dBμV emf (at 20 dB SINAD)
–8 dBμV (at 10 dB S/N