Entel HT649 對講機
Environmental protection to IP68 (5 Meters for 1 Hour)
The practical HT649 Series 2.0 GMDSS portable enjoys an IP68 (5 Meters for 1 Hour) rated construction, which means that it is dust protected and fully Submersible.
Meeting MIL-STD 810C/D/E/F and providing commercial grade construction for tough, enduring performance. Entel's HT649 Series 2.0 GMDSS 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.
Primary Lithium one-shot Emergency battery
The HT649 Series 2.0 GMDSS portable is supplied with a Lithium battery as standard. With a 5-year shelf life you are assured of a full charge as and when you need to use Entel’s Primary Emergency battery.
2000mAh Secondary Li-Ion re-chargeable battery
Optionally the HT649 Series 2.0 GMDSS portable can also be supplied with the latest intelligent Lithium-Ion Secondary battery. 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.
Robust accessory socket
When an accessory is secured to the portable, the plug / socket has been designed to withstand any amount of punishment from dropping to careless misuse. Furthermore, the securing bolt incorporates a shearing point to protect the connector.
The HT649 portable provides all INT, USA & CAN Marine channels.
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 HT649 portable can operate totally hands free. All you need to do is talk and the HT649 portable will automatically transmit for you.
The HT649 Series portable has the facility to scan for an active channel. When the channel is found, the radio will automatically select the channel for you.
Frequency Range 156 - 163.275MHz
Channels 19 INT, USA & CAN Marine Channels
Channel Spacing 25 kHz
Communication Method Simplex / semi duplex
Antenna Impedance 50 ohm
Antenna Whip / stubby
Battery Type Primary – Lithium
Secondary - 2000 mAh Li-Ion
Power Supply Voltage 7.4V DC
Current Drain (nominal) 40mA
Primary Duty Cycle (10/10/80) Secondary Duty Cycle (5/5/90) > 8 Hours
Microphone Internal condenser microphone
Operating Temperature -20° to +55°C
Construction MIL-STD 810C/D/E/F
IP Rating IP68 (5 Metres for 1 Hour)
Size (mm) 59.5(W) x 130(H) x 37(D)
Weight 277g with battery and aerial
Power Output 1.3W
Oscillator Method PLL
Frequency Stability 2.5PPM
Maximum Deviation ±5 kHz
Audio Distortion < 5% (1 kHz 60%)
Spurious Emission -68 [dBc]
Hum & Noise -40 [dB]
Receiver Type Double Super Heterodyne type
Sensitivity -0.25uV (12dB SINAD)
Frequency Stability 2.5PPM
Spurious Rejection -60 dB
Adjacent Channel Selectivity -60 dB (Narrow) , -70 dB (Wide)
Distortion < 5% (1 kHz 60%)
Hum & Noise -40 dB
Audio Output 1W