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     Entel HT720

 

 

The HT700 series utilises state of the art technology with leading edge features, ensuring that it can be depended upon in the most extreme conditions.

The HT700 series conforms to European Standard IP68 - withstanding total immersion in water to a depth of 5 metres for 60 minutes - giving you total protection and peace of mind.

Meeting MIL STD 810C/D/E rating for tough, enduring performance, the HT700 series conforms to stringent standards, enabling it to withstand the every day rigours of shock, vibration and the corrosive action of dust and moisture, ensuring many years of trouble free use even in a salt water environment.

The very latest battery technology gives you three big advantages:
1. Huge fourteen hour duty cycle with supplied CNB640E battery pack.
2. Not prone to the dreaded memory effect that Nicad and Ni-MH battery packs suffer from, therefore no more need to fully discharge your battery pack before charging!
3. Stores a charge up to three times longer than a Nicad.

HT 720 Technical Specification

Frequency Range
148-174MHz
Channels
128 Channels
Channel Spacing
12.5 kHz / 25 kHz
Communication Method
Simplex / semi duplex
Antenna Impedance
50 ohm
Antenna
Whip / stubby
Battery Type
1800 mAh Li-Ion battery pack
Power Supply Voltage
7.4V DC
Current Drain (nominal)
When transmitting (5W) - 1800mA
When transmitting (1W) - 850mA
When receiving (0.5W) - 160mA
Receiver standby - 50mA
Duty Cycle (5/5/90)
15 hours (high) / 19 hours (low)
Microphone
Internal condenser microphone
Operating Temperature
-20° to +55°
Size (mm)
59(W) x 130(H) x 33(D)
Weight
296g with battery and aerial

 

Transmitter

 

Power Output
HIGH – 5W, LOW - 1W
Modulation
8K0F3E/16K0F3E
Oscillator Method
PLL
Frequency Stability
< ±0.00025% (±2.5PPM)
Maximum Deviation
±2.5 kHz(Narrow)/ ±5 kHz(Wide)
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%(±2.5PPM)
Spurious Rejection
-60 dB
Adjacent Channel Selectivity
-60 dB (Narrow) , -70 dB (Wide)
Distortion
< 3% Typical
Hum & Noise
-40 dB
Audio Output
1W
Speaker Size
38 mm