Buy ICOM IC-M718 SSB Radio

Looking for a reliable long-range communication device for vessels, field posts, operational vehicles, or remote locations? The ICOM IC-M718 SSB Radio is an HF SSB radio with up to 100 watts of transmission power, designed to support communication in areas where cellular networks and the internet are unavailable or unreliable. HF radios like this are commonly considered for fishing vessels, workboats, logistics vessels, expeditions, plantations, mining operations, and field operations in border areas.

In the market, the name ICOM IC-M718 is often used to refer to popular Icom HF SSB radios, including the Icom IC-718 family. Therefore, prospective buyers should verify the exact model, frequency configuration, included accessories, device condition, and compatibility with the intended communication system. Make sure that frequency use and radio equipment operation comply with applicable licensing requirements.

HF SSB Radio for Long-Range Communication

SSB, or Single Side Band, radios operate on the HF, or High Frequency, band, which can be used for long-range communication. Compared with short-range radio communication, HF systems provide the opportunity to establish connections between more distant locations, particularly when supported by a suitable antenna, proper installation, favorable propagation conditions, and accurate frequency settings.

The ICOM IC-M718 or IC-718 supports signal reception from 0.030 to 29.999 MHz. The guaranteed reception range is 0.5 to 29.999 MHz. The transmission frequency coverage may vary depending on the device version, regional configuration, and local frequency regulations. Therefore, verifying the unit version and frequency allocation before installation is essential.

This device provides USB, LSB, CW, RTTY/FSK, and AM operating modes. USB and LSB modes are used for SSB voice communication, while CW and RTTY/FSK can be used for specific signal or data communication requirements. Frequency resolution of up to 1 Hz helps operators perform more precise tuning when searching for or locking onto a communication frequency.

Key Specifications of the ICOM IC-M718 / IC-718

The following is a summary of the specifications to consider when choosing an ICOM IC-M718 SSB radio. Specifications may vary depending on the version, options, and device configuration; confirm the details of the available unit before purchasing.

Transmission and Reception Performance

In SSB, CW, and RTTY modes, the radio supports power settings of approximately 2 to 100 watts. This adjustment is useful for adapting the communication range, maintaining power efficiency, and reducing the potential for interference with other frequency users. In AM mode, the output power ranges from approximately 2 to 35 watts.

The SSB modulation system uses balanced modulation, while AM mode uses low-level modulation. Unwanted emissions are below –50 dB of the peak output power. Carrier suppression of more than 40 dB and unwanted sideband suppression of more than 50 dB help produce cleaner transmissions when the installation, antenna, and operating settings are properly configured.

On the receiver side, the device uses a double-conversion superheterodyne system to support stable HF signal processing. Reception sensitivity in SSB, CW, and RTTY modes reaches approximately 0.16 μV at a 10 dB signal-to-noise ratio across the 1.8 to 29.999 MHz range. For AM, the sensitivity is approximately 13 μV at 0.5–1.799 MHz and 2 μV at 1.8–29.999 MHz.

The selectivity of SSB, CW, and RTTY modes is more than 2.1 kHz at –6 dB and less than 4.5 kHz at –60 dB. In AM mode, the selectivity is more than 6.0 kHz at –6 dB and less than 20 kHz at –40 dB. Spurious and image rejection of more than 70 dB at 1.8–29.999 MHz also helps reduce unwanted image-signal interference.

Advantages for Vessels and Remote Locations

The main advantage of the ICOM IC-M718 SSB radio is its flexibility for long-range communication over HF networks. This device can be considered for inter-island operational communication, long-distance voyages, workboat coordination, plantations, mining operations, surveys, expeditions, and emergency response posts in areas with limited telecommunications infrastructure.

Its relatively compact dimensions, approximately 240 × 95 × 239 mm, and weight of approximately 3.8 kg make it suitable for installation on vessel panels, in radio rooms, operational vehicle cabins, or land-based field posts. The operating temperature range of –10°C to +60°C also supports use in various working environments.

The 101 memory channels make it easier for operators to store important frequencies. Operators do not need to manually retune the frequency every time they operate the radio. The 50-ohm SO-239 antenna connector simplifies integration with compatible HF antenna systems, while audio output of more than 2 watts at an 8-ohm load and a 3.5 mm external speaker connector support communication requirements in cabins or noisy work areas.

Important Considerations Before Buying

Before purchasing an ICOM IC-M718 SSB radio, explain your intended use to our sales team. Information such as the type of vessel or installation location, 13.8 V DC power source, antenna type, cable length, external speaker requirements, and operating frequencies will help determine the most suitable solution.

For installation on vessels or at field posts, use an adequate DC power supply because current consumption may reach approximately 20 A during 100-watt transmission. Use high-quality cables, protective fuses, secure terminal connections, and a proper grounding system. HF radio performance is strongly influenced by the quality of the antenna and installation, not just by the radio unit itself.

Radio transmitter operation must comply with applicable licenses, frequency allocations, and regulations. Do not transmit on unauthorized frequencies. Confirm the transmission frequency coverage of the available unit beforehand to ensure that it meets your operational requirements and regulatory obligations.

FAQ: ICOM IC-M718 SSB Radio