VHF transceiver HHKJ2000T

HHKJ2000T Transceiver represents the latest generation of VHF air-ground communication equipment designed independently by our company. Possible applications range from civil aviation air-ground communication to air traffic control system. The transceiver is an important unit in the multi-transmit and multi-receive communication command system apart from VHF filter, antenna spliter, antenna combiner, and VHF co-pole antenna. General characteristics *Frequency range: 118 MHz ～ 144 MHz（118 MHz ～ 156 MHz optional） *Frequency error: ±1×10-6 *Channel spacing: 25 kHz/12.5 kHz /8.33 kHz *Modulation type: AM（A3E） *Work mode: semi-duplex *Antenna connector: N female，50Ω，common TX/RX antenna； BNC *female，50Ω，separate RX antenna *Power supply: AC 220 V±22 V，50 Hz±5 Hz； DC 24 V±2.4 V *Operating temperature: -20 ℃ ～ +55 ℃ *Storage temperature: -30 ℃ ～ +70 ℃ *Relative humidity: 95%， at +40 ℃±2 ℃ *Dimensions: 482 mm×133 mm×536 mm（with handles） *Weightn: 18 kgReceiver -Receiver *Receive sensitivity: ≤1.5 μV *Selectivity: ±7.5 kHz/6 dB，±25 kHz/80 dB *Squelch: setting range （S+N）/N 8 dB ～ 15 dB *Image frequency rejection: ≥80 dB *Intermediate frequency rejection: ≥100 dB *Adjacent channel rejection: ≥75 dB *Intermodulation response rejection: ≥70 dB *Oscillator reradiation: ≤-90 dBm *Desensitization rejection: ≥80 dB *AF response: -3 dB ～ +1 dB *Audio distortion ≤5% AF outputs Line output: 0 dBm±1.5 dBm nominal,-12 dBm ～ 0 dBm settable -Transmitter *RF carrier power: 50 W（10 W ～ 50 W settable） *Modulation depth: 30% ～ 90% ，limiter at 99% *AF response: -3 dB ～ +1 dB *Modulation distortion: ≤5% *Harmonic emission: ≥80 dBc *Spurious emission: ≥90 dBc *Adjacent channel power: ≤-60 dBc