On Mon, 14 Jul 2003 20:41:53 -0700, wrote:

I would like to build a 908Mhz turnstile.

How does one normally go about testing and adjusting an
antenna at that high of frequency?


For a lower frequency I can hook up a MFJ antenna analizer or an SWR
meter,.

I want to build a 900Mhz antenna with a hemispherical pattern.
It is going on an RC plane, so a normal vertical style antenna will
be problematic as it will have a null straight down.

So I though a turnstile antenna would be perfect.


Any advise on designing such a device?


Paul Kl7JG


Hi Paul,

1. build a 90.8MHz version and scale it down;
2. build an Inverted-F
see:
http://www.qsl.net/kb7qhc/antenna/In...%20F/index.htm

73's
Richard Clark, KB7QHC