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“ENTEL” Two-way Radio

更新时间:2016-06-14  访问统计:2892

“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
 
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