[time-nuts] Choke Ring Antenna - Patch Placement? (Bob Stewart)

Magnus Danielson magnus at rubidium.dyndns.org
Fri Oct 11 16:52:59 EDT 2013


On 10/11/2013 08:05 PM, johncroos at aol.com wrote:
> You might want measure the antenna pattern. Lady Heather has a mode that plots satellite signal level vs azimuth and elevation. You might want to try that. It takes a day or so to get a complete plot, but  you have some hard data to compare various choke positions. 
If you tip it on the side and let the bottom be parallel to north-south,
you can see the cut-off as the sats go in and out over the rimb, and you
would also get a fair idea of suppression of signals from the lower side
of the antenna. A little el cheapo testing using what you got.

Cheers,
Magnus


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