It is best for the receiving antenna to match the polarization of the transmitted wave for optimum reception. Intermediate matchings will lose some signal strength, but not as much as a complete mismatch. A circularly polarized antenna can be used to equally well match vertical or horizontal linear polarizations. Transmission from a circularly polarized antenna received by a linearly polarized antenna (or vice versa) entails a 3 dB reduction in signal-to-noise ratio as the received power has thereby been cut in half. COUNT 4
QSN1 What is the best for an recieving antenna for optimum reception? ANS1 match the polarization QSN2 What loses signal strength? ANS2 Intermediate matchings QSN3 What is used to match vertical and horizontal linear polarizations? ANS3 circularly polarized QSN4 A transmission can cause reduction in what? ANS4 signal-to-noise ratio