Bob Kupps wrote: > Right now we are feeding it through a 4:1 balun (not a unun) with 12.5 ohms on the > balanced side, and the SWR is 1.4 with no matching network. You should get quite a reasonable SWR with no matching at all. A good high-impedance common mode choke is recommended. 73, Sinisa YT1NT, VE3EA