I started to write a similar reply myself about 30 minutes ago, and then I noticed what he was doing with the WD-1. :-)
I didn't do any math, but just looking at Jim's photos (1 attached) and text, perhaps the DXE transformers he is using are close enough. Note that Jim has two runs of WD-1 shorted at each end and spaced ~50mm. I'll bet the line Z is not that far off of the DXE OWL. I was wondering how smooth the inside of those ceramic insulators are. If they are as rough as the ones I have, it could wear away the WD-1 over time. 73, Mike www.w0btu.com On Fri, Oct 17, 2014 at 5:37 AM, Tom W8JI <[email protected]> wrote: > As with any transmission line, the effect of that mismatch is periodic > with frequency ... If the line transmission mode impedance is 100 ohms ... > _________________ Topband Reflector Archives - http://www.contesting.com/_topband
