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Security equipment quality goods HT-A77 wireless handheld walkie-talkie over a long distance

$67.99

Availability: In stock

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Security equipment quality goods HT - A77 wireless handheld walkie-talkie over a long distance
Model : 1372613637

Details

 

Standard accessories: fuselage 1 1 pack 1 antenna block 1 battery charger 1 piece of this specification

Optional accessories: headset

 

Frequency range: 136-174 MHZ, 400-470 MHZ
1, 16 channel frequency
2, VHF4W/UHF 5 W output power
3, 500 mw audio output, voice clear and bright
4, SMA antenna connectors, high frequency transceiver is better
Channel 5, 128 groups of memory, VOX function of acoustic emission
6, ANI pins, speech security device
7, CTCSS/DCS / 2 Tone signalling, multifunctional scanning
8, the three color adjustable screen background lights, emergency call button
And she wrote, computer frequency
10, lithium-ion batteries, environmental protection
11, weight: 250 g (including battery)
12, amateur, advanced business model
Technical parameters:
Frequency range 136-174 MHZ/ 400-470 MHZ
Channel number 128
Working voltage 7.4 V LI - ION
Working temperature range - 20 ° - + 60 °
Frequency stability + / - 2.5 PPM
Appearance size (high * length * width) 125 * 32 56 mm
The weight of the 250 g

hair

shoot

The power output 5 w
Modulation method F3E
Stray radiation < 2.5 mu W
Adjacent power > 65 db
Take up the width 8/16 KHZ
Frequency modulation distortion 3% or less
Signal to noise ratio 34/40 of the db
Modulation characteristics Plus or minus 3 db

Pick up

closed

The sensitivity < 0.2 mu V
Adjacent channel selectivity Or 60/70 db
The perturbation resistance spurious response Or 65/70 db
Audio power 500 mw
Audio distortion 3% or less
Intermodulation interference resistance 65 db or higher

 

 

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