Because the advantages of low investment in equipment,simple erecting no need to maintain lines,simulation of point-to-point microwave transmission equipment in a very long period time become the sound of radio and television broadcasting systems, video program source (V, A) preferred transmission equipment.Simulation of microwave transmission equipment, technology and devices from the early 1980s, now has a well-established, and the direction of transition to digital.
◇ Frequency :
Sub options 1.0GHz-13GHz
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Modulation:
Microwave direct PLL FM
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Frequency stability:
1×
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Sending and receiving antennas:
Helical antenna aperture grid, plate dish
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Differential gain (DG):
≤3%
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Differential phase (DP):
Within range of +3 degrees
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Image transmission indicators: Subjective assessment than 4 grades
◇ Audio SNR:
Better than 50 dB
The equipment use FM working methods, images and sound signals directly to the microwave modulation frequency regulation,after amplification microwave power amplifier to the antenna feeder mouth after launch.Microwave antenna to receive signals from the receiver after a feeder line, the signal power splitter and sent to the demodulator counterparts.Demodulator restored image and sound the starting end.
