Entel HT649 GMDSS Marine VHF Radio with IP68

The Entel HT649 GMDSS Marine VHF Radio is dedicated to survival craft communications, placing emergency readiness ahead of general operational flexibility. It carries 19 INT, USA, and CAN marine channels across 156–163.275 MHz and transmits at less than 1 W ERP. Power comes from a one-shot primary lithium emergency battery with a stated shelf life of 4 years. The radio is MED certified with the Wheel Mark and rated IP68 for immersion at 2 metres for 4 hours. Within the family, the HT644 provides broader access across marine channel plans, while the HT649 concentrates on a defined set and a survival craft role. It therefore supports a different buying decision: equipping a dedicated emergency asset rather than issuing a broad-channel radio for routine shifts.

The Emergency Role of the Entel HT649 GMDSS Marine VHF Radio

The battery design shapes the management process as much as the channel set. A one-shot primary battery does not belong in the daily charging cycle; it is tied to survival craft readiness. Safety or operations managers can record when the battery enters inventory, include its 4-year shelf life in the readiness program, and plan replacement under the facility’s approved asset cycle. The defined 19-channel set also keeps crew instruction focused on the communication choices assigned to this radio, while scanning can automatically select an active channel when the operating procedure calls for it.

The HT649 supports simplex and semi duplex communication, 25 kHz channel spacing, and frequency stability of ±1.5ppm. These values help the communications team match the radio to the marine network plan. Its output below 1 W ERP also belongs in that suitability review. It should not be treated as a direct substitute for the power profile of a routine shift radio, because the survival craft purpose, GMDSS role, and selected channel set define the operating context for the HT649.

Display, Audio, and Controls

A high-visibility back-lit LCD helps the operator read radio status as lighting conditions change. Voice annunciation of the channel number provides another confirmation path when looking closely at the screen is difficult. Audio output is 1 W through a 38 mm speaker, and user or automatic keylock can reduce unintended changes after configuration. VOX is supported with an Entel VOX audio accessory, so any voice-operated workflow should include the accessory in the survival craft or communications kit rather than assuming it is integral to the handheld.

Saudi Marine-Sector Applications

The radio fits vessel operators, marine safety teams, organizations equipping survival craft, and offshore support contractors that require a portable GMDSS survival craft radio. MED certification with the Wheel Mark establishes its position as equipment for a defined marine purpose. In fleet management, each unit can be assigned to its survival craft or muster location, with the primary battery and its shelf life entered into preventive maintenance records instead of being managed like a rechargeable shift battery.

The IP68 rating tied to immersion at 2 metres for 4 hours aligns with the water exposure risk around survival craft equipment. An operating range of -20°C to +55°C gives the responsible manager stated boundaries for reviewing storage and deployment conditions. A readiness inspection can combine checks of the back-lit display, channel voice annunciation, scanning, and keylock so the assigned crew know how to confirm the radio’s setup before it is needed.

Choosing the HT649 within the Family

The HT649 and HT644 share IP68 protection, but their channel plans distinguish them. The HT649 carries a set of 19 INT, USA, and CAN marine channels; the HT644 opens access to all marine channels in those plans. When the priority is flexibility across varied daily tasks, the HT644 is the closer comparison. When the priority is a GMDSS survival craft handheld powered by a one-shot primary emergency battery, the HT649 has the more specific role.

The CLB750G relates directly to this power-readiness context. It is a primary lithium-metal battery compatible with the HT649, not another radio. A bill of materials should therefore separate the HT649 unit, any required audio accessories, and the compatible reserve power source rather than grouping them all as communications devices. That separation makes quantities, replacement ownership, and inventory cycles clearer for purchasing and maintenance teams.

Deployment and Periodic Inspection Notes

Before assigning the unit, match its channel set to the organization’s marine emergency communication plan and document the link between the radio and its intended survival craft or muster point. Set keylock behavior according to the site procedure, then test scanning, channel voice annunciation, and the high-visibility back-lit display. If the workflow requires VOX or Bluetooth audio, include the appropriate accessory in the order: Bluetooth is an audio accessory option, not an automatic replacement for every audio setup.

The 4-year battery shelf life deserves a dedicated field in the asset record because managing a primary emergency battery differs from checking charge level on a daily-use pack. Acceptance testing should also cover the 1 W audio output and 38 mm speaker in the actual work environment, along with confirmation of the 156–163.275 MHz band and 25 kHz spacing with the communications team. The radio is flash upgradeable, allowing approved device-version review to become part of planned maintenance when an applicable operational update is available.

Package Contents

• HT649 GMDSS handheld radio
• Primary sealed lithium battery
• Antenna
• Belt clip
• Lanyard
• Quick start guide