In digital microwave receiver, LNA perform functions:
a / Filter limit frequency band and change;
b / power amplifier signal.
c / amplifier input frequency signal receiver
d / Filter limit ice and amplifier great receiver input power.
In digital microwave receiver, the differential decoding is performed:
a / Even during demodulation
b / During the decryption random
c / After the decryption random
d / At the output of the separation channel / Concept of the following is most true for satellite communication: a / A form information using artificial satellites as relay stations intermediate signal for the station on the land. b / A form of radio communication, using on-orbit satellites as intermediate station relays signals to ground stations. c / One form of information using artificial satellites flying over intermediate orbit as the station relays signals to other satellite communication stations. d / A form information using artificial satellites orbit as intermediate relay station signal to the satellite information stations other satellite operations in orbit.
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