HT642
Designed for tough marine environments, the HT642 has firmly established itself as a market-leading commercial-grade VHF. Its rugged, ergonomic design fits comfortably in your hand, and the extremely loud audio means calls are heard by the crew every time. For additional reassurance, the HT642 has a IP68 submersible rating of 2 metres for 4 hours to cope with the harshness of life at sea.
The HT642 has an extensive range of audio accessories including remote speaker microphones and ear defender headsets. Please see our accessories section for a complete listing.
General
Environmental protection to IP68 (2 Meters for 4 hours)
The practical HT642 Series 2.0 portable enjoys an IP68 (2 Meters for 4 hours) rated construction, which means that they are dust protected and fully Submersible.
MILSTD 810C/D/E/F
Meeting MIL-STD 810C/D/E/F and providing commercial grade construction for tough, enduring performance. Entel's HT642 Series 2.0 portable conforms to stringent standards, enabling it to withstand the everyday rigours of shock, vibration and the corrosive effects of dust and moisture, ensuring many years of trouble free use.
2200mAh Li-ion battery
The HT642 Series 2.0 portable is supplied with the latest intelligent Lithium-ion battery technology as standard. One key advantage of Lithium-ion battery technology is the way it eliminates ‘memory effect’ meaning there is no need to fully discharge your battery before recharging. Therefore you are assured a full charge each and every time you take your Entel battery from its charger.
Flash upgradeable to add future features
Entel adds and improves features on its HT642 radio by way of software updates. Using Flash Upgrade technology your Entel HT642 radios can be upgraded by your Dealer at any time.
Robust accessory socket
The socket has been specifically designed so that when an accessory is secured to the portable, the connection can withstand any amount of punishment; from dropping to careless misuse. Furthermore, the securing bolt incorporates a shearing point to protect the connector.
Channels
The HT642 portable provides 16 programmable Marine channels.
Convenience
Keylock
To avoid accidental operation your radios keys & controls can be locked by the user or, if set, automatically by the radio.
VOX hands free (with audio accessory)
When using an Entel VOX enabled audio accessory, your HT642 portable can operate totally hands free. All you need to do is talk and the HT642 portable will automatically transmit for you.
Scan/priority scan
The HT642 Series portable has the facility to scan for an active (or free) channel. When the channel is found, the radio will automatically select it for you. Priority scan will allow you to select one channel in the scan list that is treated as a "Priority". It will be checked more frequently than all other channels in the list.
Security
Programmable scrambler (voice inversion)
Used to encrypt your voice, protecting against casual eavesdropping.
Safety
Local Personal Attack Alarm
All HT642 portables include a personal attack alarm option. Once activated the speaker of your radio will emit a high pitched siren as a deterrent and provides a local call for assistance.
General
Frequency Range | 156 - 163.275MHz |
Channels | 16 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 | MIL-STD 810C/D/E/F |
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 |
Transmitter
Power Output | 5W High <1W Low |
Frequency Stability | ± 1.5ppm |
Modulation Limiting | ± 5.0KHz |
FM Hum & Noise | >-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 | < 5% |
FM Modulation | 16K0F3E |
Receiver
Frequency Stability | ± 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 | < 5% |
Hum & Noise | >-40dB |
Audio Response | 300Hz to 3KHz -6dB/Octave |
Conducted Spurious Emissions | <2nW up to 1GHz, <20nW from 1GHz to 2GHz |
As standard the HT Series portable is supplied with:
- Li-ion battery pack
- Drop in charger
- Spring loaded belt clip
- High efficiency antenna
- Quick start user guide
Featured Products
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CNB750E
2200mAh rechargeable Lithium-Ion battery pack
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CSAHT
Single pod rapid charger, 110-240v, specify 2-pin or 3-pin plug
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CSBHT
Six pod intelligent rapid charger, 110-240V. Specify 2-pin or 3-pin plug
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CWCHT-12
Cigar lighter lead 12V
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CWC
Mains adaptor. Specify 2-pin or 3-pin plug
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CBE750
Dummy battery with regulator and cigar plug for 12V operation
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CLC752
Heavy duty leather case and strap with belt loop for non-LCD radios
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CBH750
Spare spring-loaded belt clip
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CXW640
BNC Antenna adapter
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CSM750
Service manual (Only available to Authorised Dealers)
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CMP1/750
Pocket size lapel microphone
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CMP750
Submersible, very rugged heavy-duty lapel microphone
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EA12/750
‘D‘-shaped earpiece with tie clip microphone / PTT
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EA15/750
Acoustic tube earpiece with tie clip microphone / PTT
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CXR16/750
Bone conductive throat microphone
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CXR5/750
Bone conductive skull microphone
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CHP1/750
Lightweight single earpiece headset with in-line PTT
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CHP750D
Double ear-cup defender with large PTT and comfort headband
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CHP750HD
Double ear-cup defender with large PTT (hardhat use only)
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CHP750HS
Single earpiece ear defender with large PTT (hardhat use only)
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EHP750
'D’ shaped covert style earpiece for the HT series hand portable radio
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CAT20/156
VHF 156MHz antenna
