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SMA (SubMiniature version A) connectors are semi-precision coaxial RF connectors developed in the 1960s as a minimal connector interface forcoaxial cable with a screw type coupling mechanism. The connector has a 50 Ω impedance. It is designed for use from DC to 18 GHz
Circular Polarized Antennas Circular Polarization is one of the biggest step forward in the progression of the FPV experience of the last few years. It has improved signal reception on all bands and brought 5.8Ghz video from one of the least practical systems to now one of the best. What is Circular Polarization ?