20KM Analog Microwave Link One Channel for FM Radio Station

20KM Analog  Microwave Link for fm transmitter Station

1, analog microwave system performance:

★ panel LCD display parameters, the output frequency through the panel buttons to adjust
★ Working frequency: 8/11GHz★ IF frequency: 1.4GHz
★ transmit power: 0.5W★ modulation: FSK
★ Frequency Stability: ± 10ppm
★ receiver noise figure: ≤ 4.0dB
★ receiver threshold level:-85dBm
★ AGC range: +10 dBm ~-45dBm
★ Power supply: AC220V/110V
★ environmental conditions: indoor unit 0 ~ +40 ℃, -45 ~ +60 ℃ outdoor unit
2 audio transmission technology indicators

★ random weighted signal-to-noise ratio of 65dB
★ intervene attenuation ± 0.35dB
★ intervene attenuation stability (24h) ± 0.35dB
★ nonlinear distortion 1.5%
★ amplitude-frequency characteristics
40 ~ 125Hz +0.25 ~-0.9dB
125Hz ~ 10KHz 0.25dB
10KHz ~ 14KHz +0.25 ~-0.9dB
14KHz ~ 15KHz +0.25 ~-1.5dB
★ group delay
40Hz 9ms
75Hz 8ms
14KHz 3ms
15KHz 4ms
★ stereo isolation 65dB
★ stereo left and right channel level difference (40 ~ 15KHz) 1.0dB
★ stereo left and right channels (40 ~ 15KHz) 8 degrees out of phase
System equipment list:
One unit 1V2A microwave modulation machine
One unit 1V2A microwave demodulation machine
One unit 8/11GHz analog microwave best fm transmitter(ODU, 0.5W)
One unit 8/11GHz analog microwave receiver (ODU)
Two unit 8/11GHz microwave parabolic high-performance transmit and receive fm broadcast antenna
Feeder cabes 100 m