ICOM M803 SSB Marine Radio
$2,999.95
Get it between October 24 and October 26.
Low in stock
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At MarineXGear, we are proud to have the best refund and return policies in the industry. If you’re not satisfied with your purchase for any reason, you may return it to us within 30 days for a refund.
If you have a problem with our order (there are missing components, damages, or the product is not functioning), please reach out to us as quickly as possible. Some of the problems can be resolved by going through the product manual or the product FAQs.
Refer to our Refunds & Return Policy for more details.
Order Processing
Once we receive your order, we will send you a confirmation email. Then we will process the order by confirming that the product is in stock and ready for shipment. If any of the items in your order are back-ordered, we will reach to you via email or phone and you may choose to either wait or receive a 100% refund.
Please allow 1-3 days for processing your order.
Shipping
We ship to the lower 48 continental United States only at this time.
Shipping times and shipping method will depend on the specific product and brand you purchase. If you have any shipping question, feel free to ask on the chat or email us at info@marinexgear.com.
We will send tracking information by email the same day the shipping tracking number is created/available.
Before you sign the shipping bill, please THOROUGHLY INSPECT YOUR ITEM. Signing for the receipt of a damaged product removes the liability of the shipping company and MarineXGear. Once you accept your shipment as non-damage, your item is your property.
ICOM M803 SSB Marine Radio
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 |
240 × 94 × 238 mm, 9.4 × 3.7 × 9.4 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 |
|
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| Sensitivity at 10 dB S/N |
|
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| DSC Sensitivity (J2B) | 6 dBμV emf (at 20 dB SINAD) –8 dBμV (at 10 dB S/N) –6 dBμV emf (at 1% BER) |
|||||||||
| Spurious response Tx/RxDSC |
More than 70 dB More than 70 dB
|
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| Audio output power | 4.0W at 10% distortion with a 4Ω load | |||||||||
| Clarity variable range | ±150 Hz | |||||||||
All stated specifications are subject to change without notice or obligation.
Applicable IP Rating
| Ingress Protection Standard | |
| Remote controller | IPX7 (1m depth water for 30 minutes) |
Supplied Accessories
- Remote controller
- DC power cable
- Mounting bracket kits
- Remote control cable (5 m, 16.4 ft)
- GPS antenna (5m, 16.4 ft cable)
- ACC plugs
- Microphone, HM-214H
- Microphone hanger
- Spare fuses
M803 Optional Accessories:
- AT-140 Automatic Antenna Tuner
- OPC-1465 Shielded Tuner Control Cable for M803 and AT140
- MB-75 Flush Mount Bracket Kit for Remote Controller
Why Choose MarineXGear
At MarineXGear, we believe true peace of mind on the water starts with having the right equipment. Our mission is simple: to be the trusted destination for premium marine gear and dependable on-water solutions. Every product we carry — whether navigation systems, safety equipment, marine electronics, or boat accessories — is carefully chosen to help you perform at your best, stay safe, and get the most out of every voyage.
A+ Customer-First Approach
We're more than an online store — we're your partner on the water. Unlike large, impersonal retailers, our dedicated team delivers personalized guidance at every step. Whether you're outfitting a vessel for the first time, upgrading your gear, or need expert advice on a specific product, our specialists are always just a call or email away.
Passion for Wellness & Resilience
Our brand is built on a genuine love for the sea. We live and breathe marine equipment — and when you reach out to MarineXGear, you'll connect with experts who understand both the technical specs of our products and the on-water lifestyle they support.
Trusted Experts, Curated Brands
We partner directly with the most respected names in the marine industry. Our curated selection ensures every product meets our high standards for quality, durability, and performance on the water. With MarineXGear, you shop with confidence, knowing you're investing in proven gear backed by full manufacturer warranties.
More Reasons to Choose MarineXGear
- Price Match Guarantee – We’ll match any competitor to ensure you always receive the best value.
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At MarineXGear, we're committed to keeping you safe, equipped, and confident on the water. With our expertise, personalized service, and carefully curated selection, you can invest in your vessel and your adventures with complete peace of mind.
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