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    • ANTENNAS КВ
     
    Coupler АТА-125
     
     
    Coupler АТА-125 designed for ensuring radio station work with transmitter 125 W in HF frequency range 1600…30000 kHz.
     
    Coupler block being a part of Antenna coupler АТА-125 transforms the input resistance of a whip antenna with height 1,5 v to active resistance 50 Ohm by VSWR no more than 1,4 and frequency range 1600…30000 kHz
     
    Technical performances:
    • Input power (peak): no more than 125 W
    • Input power (centerline): no more than 50 W
    • Input resistance of tuning antenna: 50 Ohm by VSWR no more than 1,4
    • Time of tuning by algorithm: no more than 3 s
    • Time of tuning out of memory at programming frequencies beforehand: no more than 0,3 s
    • HF power for tuning: 3…6 W
    • Power supply: +12VDC at current no more than 0,8 А
    • Weight: 5 kg
    • Operate temperature range: -30…60 ºС
    • Moisture resistance: 95%
     
     
    Horizontal Tunable Dipole Antenna 150W
     
    Antenna 150W is  designed to provide work of radio station “Micom-2” and “Micom-3” with transmitter power no more than 150 W at frequency range 1600...30000 kHz with maintenance input resistance 50 Ohm at VSWR<2.
    Equipment consists of:
    • commutation block;
    • 4 pin antenna 8 m of each.
    Commutation block was made as a waterproof metal frame and has dimensions 496×446×192 mm.
     
     
    Technical description:
    • Tuning frequency range: 2 MHz to 30 MHz.
    • RF input power: < 150 Watt PEP and AVG.
    • HF tuning power: 6…20 W
    • Input resistance of tuned antenna: 50 Оhm with VSWR≤2
    • Tuning time by algorithm: no more than 5 с
    • Tuning memory time: no more than 2 ms
    • Orientation diagram at horizontal plane: switchable with step 45º
    • DC power: 18-33 VDC, 1 Amp at 27.5 VDC supplied by radio
    • Current: no more than 0.7 А
    • Total weight: 32 kg
    • Operating temperature range: -40C to +65C
    • Storage temperature: -40C to +70C
    • Moisture resistance: - 95% at +50°С
     
     
    Loop antenna LA-125
     
     
    Loop antenna LA-125 is designed to provide work of the radio station with transmitter power near 125 W at short wave range 1500…30000 kHz.
    Consists of:
    • two or three oscillators;
    • coupler circuit.
    Oscillators are connected and placed at coupler circuit and bearing surface.
     
    Main characteristics:
    • Frequency range: 1500…30000 кГц
    • Radiation polarization: linear (vertical)
    • Orientation diagram at azimuthally plane: two-forked
    • Power: no more than 125 W
    • Input resistanse of tunned antenna: 50 Оhm at VSWR < 1,4
    • Tuning time by algorithm: no more than 1 s
    • HF power for tuning: 3…6 W
    • Supply voltage: +24 В at current near 1,2 А
    • Weight: 9,8 kg
    • Work frequency range: -20…50ºС
    • Moisture resistance: 95%
     
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