Subj : LPDA
To : TOM WALKER
From : Roy Witt
Date : Sun Jun 08 2014 01:01 pm
Greetings TOM!
HG>HG>> The antenna Tom has is apparently based on the same design
HG>HG>> philosophy
HG>TW>> The Twin Booms are a modification of the basic design to assist
HG>TW>> impedence matching. The cross over wiring is used but mostly in
HG>TW>> TV antennas. But it still is an LPDA antenna
HG>> Correction, the dual boom design is the basic one.
TW> For Transmitting Antennas YES becaue it provides a better feed line
TW> match.
Show me an antenna, RX or TX, that doesn't need feed line matching.
TW> BUT for recieve only antennas the single boom is used by some
Yes, I have one of those. It isn't a LPDA, as it more closely resembles
the KLM LP Yagi...it too has the 'cross-over' matching device on it, but
each element is insulated from the boom. i.e. a yagi
TW> And when I tried to interject some ham Termonology I was told by
TW> Roy that we were talking aobut TV antennas.
You were mixing yourself up by talking one, then the other. If you want an
antenna that can receive locally transmitted high-power signals, no
biggie, just throw up a long wire and be done with it.
If you want to reach out and get reception from long distant TV
broadcasts, you'll need an antenna designed for that.
