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LMDS is a **DS family technology but it uses much higher frequencies - K-band, Ka-band (20 - 40 GHz). It offers much wider frequncy range, which means more TV channels. Also, due to relatively short wavelengths, the physical dimensions of the transmitting/receiving equipment are small. In addition 20 - 40 GHz frequency range usually is unloaded. But it has several disadvantages: expensive, because of the high cost of subscriber receiver; RF equipment is not so widespread and available as lower frequency one. But it useful or even irreplaceable in some situations. 

  • ParameterLMDS (K-band, Ka-band) 

  • Operation frequency range, GHz 20.0 - 30.0

  • Broadcasting standards DVB-S/S2 or DVB-T

  • Modulation types QPSK, 8PSK or COFDM 

  • Coverage zone with one transmitter up to 5km

  • Repeater Hops without regeneration none

  • Repeater Hops with reregerationunlimited

  • Cost of user's equipment Expensive, because of the high cost of subscriber receiver

       A possible way to receive collective


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