Icom IC-M804 MF/HF Marine Transceiver with DSC and GNSS
$5,150.00
The Icom IC-M804 MF/HF Marine Transceiver delivers reliable long-range marine communication with advanced DSC distress functionality, integrated GNSS positioning, and rugged IPX7 waterproof protection. Designed for demanding maritime environments, it features a large 4.3-inch colour display, instant replay capability, and seamless NMEA 2000™ connectivity for professional offshore and coastal vessel operations.
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Icom IC-M804 MF/HF Marine Transceiver
The Icom IC-M804 MF/HF Marine Transceiver is a professional-grade marine communication system designed for vessels operating in demanding offshore and coastal environments. Built for reliable long-range communication, emergency response, and vessel coordination, the IC-M804 combines advanced DSC safety functions, integrated GNSS positioning, and rugged marine durability into one dependable communication solution.
Whether used on commercial vessels, fishing boats, offshore operations, or marine transport fleets, the IC-M804 helps crews maintain clear communication when safety and reliability matter most.
Reliable Marine Communication for Critical Operations
In maritime environments, dependable communication is essential for safety, navigation, and operational coordination. The Icom IC-M804 provides long-range MF/HF communication capabilities while meeting modern marine safety requirements.
The dedicated distress system allows operators to quickly transmit emergency alerts with vessel location data, helping improve response times during critical situations. Additionally, the built-in DSC watch-keeping receiver continuously monitors distress channels, ensuring important calls are never missed.
Its rugged IPX7 waterproof construction and corrosion-resistant design make it ideal for harsh marine conditions, including offshore exposure, saltwater environments, and severe weather.
Key Features of the Icom IC-M804
Dedicated Distress Button with GNSS Positioning
The spring-loaded distress button allows rapid emergency transmission with integrated GNSS coordinates, helping authorities identify your vessel’s location quickly during emergencies.
Built-In DSC Watch-Keeping Receiver
The IC-M804 continuously scans six distress channels in rotation, providing enhanced safety monitoring while maintaining operational communications.
Large 4.3-Inch Colour TFT Display
The high-resolution colour display delivers excellent visibility from multiple viewing angles. Additionally, the night mode improves readability during low-light operation.
Intuitive User Interface
A directional keypad combined with programmable soft keys allows simple navigation through menus and communication functions, even in challenging sea conditions.
Instant Replay Function
The radio stores up to two minutes of received audio, allowing operators to replay important transmissions that may have been missed.
Integrated GNSS Receiver
Supports GPS, GLONASS, and SBAS positioning systems for accurate location data and reliable distress communication.
NMEA 2000™ & NMEA 0183 Connectivity
The IC-M804 integrates easily with compatible onboard marine electronics and navigation systems.
Rugged Marine Construction
With an IPX7 waterproof rating and corrosion-resistant housing, the IC-M804 is engineered for long-term reliability in harsh marine environments.
Ideal Applications
The Icom IC-M804 MF/HF Marine Transceiver is suitable for:
- Commercial marine vessels
- Offshore fishing operations
- Coastal transport fleets
- Workboats and service vessels
- Marine rescue operations
- Long-distance maritime communication
- Offshore industrial and support vessels
Why Choose the Icom IC-M804?
The IC-M804 is designed for marine operators who require dependable long-range communication and advanced emergency functionality. Its combination of DSC safety features, integrated GNSS technology, rugged construction, and intuitive operation makes it a trusted solution for professional maritime applications.
At Radio Industries, we help marine operators select reliable communication systems suited to their vessel requirements and operational conditions. Our team provides expert advice, system supply, programming, accessories, and ongoing support for marine communication solutions across Australia.
FAQs
What is the Icom IC-M804 used for?
The IC-M804 is an MF/HF marine transceiver designed for long-range maritime communication, distress signalling, and vessel coordination.
Does the IC-M804 include GPS functionality?
Yes. The radio includes an integrated GNSS receiver supporting GPS, GLONASS, and SBAS positioning systems.
Is the Icom IC-M804 waterproof?
Yes. The IC-M804 features an IPX7 waterproof rating and corrosion-resistant construction for harsh marine environments.
Can the IC-M804 connect to other onboard systems?
Yes. It supports both NMEA 2000™ and NMEA 0183 connectivity for integration with compatible marine electronics.
Does the radio support DSC distress calling?
Yes. The IC-M804 includes DSC functionality with a dedicated distress button that transmits emergency alerts and GNSS location information.
Speak to Marine Communication Specialists
Looking for a reliable marine communication solution for your vessel or fleet?
Speak to Radio Industries today for expert advice on marine radios, MF/HF communication systems, and professional maritime communication solutions across Australia.
Additional information
| Manufacturer | Icom |
|---|---|
| Product Type | Radio – Vehicle Mounted |
| Model | IC-M804 12V Version, IC-M804 24V Version |
Find the right earpiece, headset or microphone
Accessories connect to two-way radios with different plug types. Check your radio’s connector before ordering, or call us on 1300 266 682 and we’ll confirm compatibility for you.
Frequently Asked Questions
How Far Can Two-Way Radios Reach?
Two-way radios operate using line-of-sight communication, which means buildings, hills, steel structures and other obstacles can affect range. Actual distance depends on the environment, radio power, antenna type and system setup.
Typical examples:
- Small offices or retail: hundreds of metres
- Warehouses and construction sites: 1–3 km
- Open outdoor areas: several kilometres
- Repeaters or Push-to-Talk over Cellular systems: Australia-wide coverage
If coverage is critical, Radio Industries can help design the right communication solution.
What Channels Can I Use?
In Australia, radios can operate on:
- UHF CB channels (1–80) – public shared channels available for general use
- Private licensed frequencies – dedicated channels licensed through ACMA for business use
- Digital radio systems – for improved audio and advanced features
- Push-to-Talk over Cellular (PoC) – communication over mobile networks and Wi-Fi
The right option depends on your application and operating environment.
Which Radio Is Best?
There is no one-size-fits-all answer. The best radio depends on:
- Your industry
- Required coverage area
- Team size
- Indoor or outdoor use
- Safety requirements
- Noise levels
- Whether you require UHF CB, licensed channels or nationwide communication
A warehouse team may need digital radios, while transport fleets may benefit from Push-to-Talk over Cellular systems.
Do I Need A Private Frequency?
Not always. UHF CB channels are suitable for many general communication applications.
However, private frequencies are recommended where:
- Communication is safety critical
- Teams operate around cranes or major construction projects
- Privacy is important
- Multiple users share the same location
- Interference must be minimised
Dedicated channels help improve reliability and reduce unwanted outside traffic.
What Is The Difference Between a Two-Way Radio, Walkie Talkie and Handy Talkie?
They generally refer to the same type of device.
In professional environments, Two-Way Radio is the preferred industry term. “Walkie Talkie” and “Handy Talkie” are commonly used for recreational or consumer products.
What Is The Difference Between Analogue and Digital Radios?
Analogue radios use traditional radio technology and are often suitable for basic communication requirements.
Digital radios provide:
- Clearer audio quality
- Better noise reduction
- Longer battery life
- Improved coverage performance
- Advanced features such as private calling and GPS
Digital systems are commonly used by businesses requiring higher performance and reliability.
What Is Push-to-Talk Over Cellular (PoC)?
Push-to-Talk over Cellular works like a two-way radio but uses 4G, 5G and Wi-Fi networks instead of traditional radio signals.
Benefits include:
- Australia-wide coverage
- GPS tracking
- Group communication
- No repeater infrastructure required
- Easy expansion across multiple locations
This solution is ideal for transport, security, events and nationwide operations.
Can Two-Way Radios Work Australia-Wide?
Traditional radios have distance limitations unless repeaters are used.
For nationwide communication, many businesses choose Push-to-Talk over Cellular systems, which operate across mobile networks and Wi-Fi.
Can Different Brands Of Radios Communicate Together?
Sometimes.
Compatibility depends on:
- Frequency settings
- Channel programming
- Analogue or digital mode
- Signalling protocols (IDAS, DMR, NXDN, TETRA, P25)
- System configuration (Capacity Plus, Capacity Max, P25)
Even radios from different manufacturers may communicate if correctly programmed.
Do Radios Need Programming Before Use?
Many professional radios require setup before deployment.
Programming may include:
- Channel configuration
- Private frequencies
- User groups
- Emergency functions
- Scan lists
- Button customisation
Radio Industries can pre-program and configure systems before dispatch.
Can I Use Headsets With Two-Way Radios?
Yes. Many industries use headsets and accessories to improve communication and safety.
Popular options include:
- Noise-cancelling headsets
- Hearing protection communication headsets
- Earpieces
- Remote speaker microphones
- Push-to-talk accessories
These are commonly used in construction, security, industrial sites and events.
Are Two-Way Radios Waterproof?
This depends on the model.
Many commercial radios include protection ratings such as:
- IP54 – Protected against limited dust ingress and resistant to water splashes from any direction. Suitable for indoor use, retail, warehouses and light outdoor environments.
- IP67 – Fully protected against dust and can withstand temporary immersion in water up to 1 metre for up to 30 minutes. Commonly used on construction sites, security operations and harsh environments.
- IP68 – Fully dustproof with enhanced water protection beyond IP67 standards. Exact depth and duration vary by manufacturer, but these radios are designed for more demanding environments with heavy dust, rain and exposure to water.
The right rating depends on your work environment.
Can Radios Be Used On Construction Sites?
Yes. Two-way radios are widely used across construction projects for coordination, safety and productivity.
Many sites use:
- Rugged digital radios
- Hearing protection headsets
- Vehicle-mounted radios
- Dedicated licensed frequencies
Radio Industries can recommend systems suited to site conditions and OH&S requirements.
Do You Offer Repairs And Ongoing Support?
Yes.
Radio Industries provides:
✔ Repairs and servicing
✔ Programming and setup
✔ Genuine parts and accessories
✔ System upgrades
✔ Technical support
✔ Australia-wide assistance
We support customers long after the initial purchase.
Still Not Sure Which Communication Solution You Need?
Every site and business is different. Speak with Radio Industries for expert advice on choosing the right radio communication system for your team.
Why Radio Industries? Two-way radio specialists since 1985, with Australia-wide supply, programming and support. About us → · Working in a hazardous area? Intrinsically safe radios →