Recent content by Viss

  1. Viss

    ADS-B DIY Antenna

    I want to build a couple of simple antennas, and I have "RTL-SDR Blog R820T2 RTL2832U" dongle. It has SMA connector, which is 50omh. I am a little bit worried about multiple transitions. N adapter to hold 2mm wire antenna (50omh) N-to-F adapter (50-to-75 omh) RG6 cable, F connectors...
  2. Viss

    ADS-B DIY Antenna

    In regard to brass tube collinear antenna. It is my understanding, that velocity factor is what makes it so difficult to build without proper equipment. When I saw shield build out of pipes instead of coaxial cable, I thought it was a perfect opportunity to have the pipe empty (maybe with some...
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