On Aug 6, 7:06*pm, professorpaul wrote:
Does anyone have design for a log periodic antenna comparable to the
Elk one for 2 meters and 70 cm. I'd like to build one for satellite
work, and with the log periodic, I believe I could avoid the diplexer
issue.

Please respond directly to

Thanks!
/paul W3FIS

Actually, for a dual band to one feed, you can probably just
interleave the elements of a 2m and 70cm beam on the same boom and
connect the driven elements in parallel.

http://www.arrowantennas.com/ look at the model 146/437... they have
plans on the site to build it yourself. While they have a filter box
available, I'm not sure you actually need it.

Jim Lux wrote:
On Aug 6, 7:06 pm, professorpaul wrote:
Does anyone have design for a log periodic antenna comparable to the
Elk one for 2 meters and 70 cm. I'd like to build one for satellite
work, and with the log periodic, I believe I could avoid the diplexer
issue.

Please respond directly to

Thanks!
/paul W3FIS

Actually, for a dual band to one feed, you can probably just
interleave the elements of a 2m and 70cm beam on the same boom and
connect the driven elements in parallel.

http://www.arrowantennas.com/ look at the model 146/437... they have
plans on the site to build it yourself. While they have a filter box
available, I'm not sure you actually need it.

Except most of these designs don't work well. The problem is that the
2m elements really mess up what you're trying to do on 70.

There are ways to deal with it. One is that you tilt the elements
forward and use them for both bands. Old trick.

tom
K0TAR