power requirement of LO in LNB

Discussion in 'Wireless & RF Design' started by sohagiut, Nov 6, 2010.

  1. sohagiut

    Thread Starter New Member

    May 5, 2008
    4
    0
    hello,
    i need to determine the LO power in an LNB. i have the following values:
    received power=-117 dBW; poise power -128dBw; Noise figure of LNB=1dB; LNA gain=50dB.

    How can i use these info to relate the LO power.

    thanks in advance

    Reza
     
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