国际海洋工程网

“ENTEL” Two-way Radio

 

 

                  HT-649

 

Our HT649 GMDSS portable is MED certified and carries the essential Wheel Mark logo. For those requiring a full featured GMDSS portable, with high visibility back-lit LCD, the HT649 is the most advanced GMDSS portable available.

From an established generation of commercial grade products the HT Series 2.0 is designed to endure any emergency situation in the most hostile marine environment. Not just compliant with MIL-STD 810C/D/E/F, the HT Series GMDSS also exceeds the MED's IP67 submersibility requirement (1m – 30 minutes) Our GMDSS portables are uniquely approved to IP68 (5m – 1 hour).

 

Frequency Range 156 - 163.275MHz (HT649)

Channels International, Canadian & USA

Channel Spacing 25 kHz

Communication Method Simplex

Antenna Impedance 50 ohm

Antenna Helical

Battery Type 2000 mAh Lithium battery pack

Power Supply Voltage 7.4V DC

Microphone Internal condenser microphone

Operating Temperature -20° to +55°

 

Transmitter:

Power Output 1.3W

Modulation 16K0G3E

Oscillator Method PLL

Frequency Stability < ±0.00025% (±2.5PPM)

Maximum Deviation ±5 kHz

Audio Distortion < 5% (1 kHz 60%)

Spurious Emission -68 [dBc]

Hum & Noise -40 [dB]

Receiver:

Receiver Type Double Super Heterodyne type

Sensitivity -0.25uV (12dB SINAD)

Frequency Stability ±0.00025%(±2PPM)

Spurious Rejection -60 dB

Adjacent Channel Selectivity -70 dB

Distortion < 3% Typical 

Hum & Noise -40 dB

Audio Output 1W

Speaker Size 38 mm