"kombainereid" - 1 õppematerjal

Side konspekt 2020 / eksami kordamisküsimused

Coupler) The way we define it, a coupler (usually) has four ports, uses no "internal" resistors and has one isolated port that is terminated. A splitter is (usually) a three-port, is non-directional, and requires internal resistors (like a Wilkinson) and has no isolated port. 46. Milleks kasutatakse dupleksfiltreid Võtab sisse nii Tx kui ka Rx üheselt (in and out) - Enable Tx and Rx separation 47. Milleks kasutatakse kombainereid (Combiner) Enable DAS sharing between two or more base stations in the same frequency band  Transmitted and received signals of base stations are separated and corresponding signals are combined via band pass filters and splitters 48. Mida näitab mürategur (Noise Figure) Noise Figure is noise factor described in logarithmic units (dB) This is the most important figure on the uplink of any DAS