AlincoMarine
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Entel
Entel HT644
Marine VHF handheld radio covering 156-163.275MHz with all INT/USA/CAN channels, 5W output, IP68 waterproofing and a 2200mAh battery rated for 14.5 hours.
- Brand
- Entel
- Category
- Marine
- Availability
- Enquire for lead time
Technical
Specifications
| Frequency Range | 156 - 163.275MHz |
|---|---|
| Channels | All INT, USA & CAN Marine Channels |
| Channel Spacing | 25 kHz |
| Communication Method | Simplex / semi duplex |
| Antenna Impedance | 50 ohm |
| Antenna | Whip / stubby |
| Battery Type | 2200 mAh Lithium-ion battery pack |
| Operating Voltage | 7.6V |
| Current Drain (nominal) | 40mA |
| Duty Cycle (5/5/90) | 14.5 hours |
| Microphone | Internal condenser microphone |
| Operating Temperature | -20° to +55°C |
| Construction | Compliant MIL-STD 810C/D/E/F/G |
| IP Rating | IP68 (2 meters depth for 4 hours) |
| Size (mm) | 59.5(W) x 130(H) x 37(D) |
| Weight | 277g with battery and aerial |
| Power Output | 5W High <1W Low |
| Frequency Stability (Transmitter) | ± 1.5ppm |
| Modulation Limiting | ± 5.0kHz |
| FM Hum & Noise (Transmitter) | >-40dB |
| Unwanted Emissions | <2nW up to 1GHz, <20nW from 1GHz to 2GHz |
| Adjacent Channel Power | 70dBc |
| Audio Response (FM) | 300Hz to 3kHz -6dB/Octave |
| Audio Distortion (Transmitter) | < 5% |
| FM Modulation | 16K0F3E |
| Frequency Stability (Receiver) | ± 0.5ppm |
| Analogue Sensitivity | -120dBm (0.2uV) for 12dB Sinad |
| Intermodulation Response | >68dB |
| Adjacent Channel Selectivity | >70dB |
| Spurious Rejection | >70dB |
| Rated Audio Power | 0.5W |
| Audio Distortion (Receiver) | < 5% |
| Hum & Noise (Receiver) | >-40dB |
| Audio Response (Receiver) | 300Hz to 3kHz -6dB/Octave |
| Conducted Spurious Emissions | <2nW up to 1GHz, <20nW from 1GHz to 2GHz |
Overview
About this product
The Entel HT644 is a marine VHF handheld radio covering the full 156-163.275MHz band with all International, USA and Canadian marine channels on 25kHz spacing. It transmits at 5W high power (1W low) and is built to IP68 (2 metres for 4 hours) and MIL-STD-810C/D/E/F/G standards for waterproofing and ruggedness. The radio weighs 277g with its 2200mAh lithium-ion battery pack and aerial, and is rated for 14.5 hours of use on a standard 5/5/90 duty cycle.
Questions
Frequently asked questions
Is the Entel HT644 waterproof?
Yes. The HT644 carries an IP68 rating, tested to 2 metres' submersion for 4 hours, and its construction is compliant with MIL-STD-810C/D/E/F/G for shock and environmental ruggedness.
What is the battery life of the Entel HT644?
The HT644 ships with a 2200 mAh lithium-ion battery pack and is rated for 14.5 hours on a standard 5/5/90 duty cycle (5% transmit, 5% receive, 90% standby).
What marine VHF channels does the Entel HT644 cover?
The HT644 covers the full 156–163.275 MHz marine VHF band on 25 kHz channel spacing, with all International, USA and Canadian marine channels pre-programmed.
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