I'd be surprised if a little mismatch between an approx. 100 ohm twisted pair and 50 ohm coax would make any really noticeable difference, but some sort of balun might be in order. For the 40' X 10' KAZ loop that I had, I just tied the primary of the transformer to some RG-58 that ran through an old tunable AMECO tube preamp to the RX antenna input of the FT-1000MP.
73, Charlie, K4OTV -----Original Message----- From: Topband [mailto:[email protected]] On Behalf Of Mike Waters Sent: Thursday, August 22, 2013 9:58 PM To: topband Subject: Re: Topband: Two 2:1 transformers to choose from!! I meant to add "unless you need a certain impedance ratio". On Thu, Aug 22, 2013 at 8:51 PM, Mike Waters <[email protected]> wrote: > That is EXACTLY what I have experienced here. > > 73, Mike > www.w0btu.com > > On Thu, Aug 22, 2013 at 8:40 PM, Tom W8JI <[email protected]> wrote: > >> >> Two turns for 75 ohms is plenty for decent 100 kHz to 30 MHz performance. >> > > _________________ Topband Reflector _________________ Topband Reflector
