Tag Archives: W3NQN


This spring I build 2 TXBPF (http://www.5b4agn.net/) filter sets (based on the W3NQN filter designs part 1 and part 2) which were installed in an 19” cabinet.

High Power LPFs

Based on the W3NQN designs I build 5 low pass filters. These filters were build to be used with legal limit output power.