I can only second Peters experience
and recommend you guys give polar plot a try, when trying to measure
antenna patterns.
I have recently used it myself and found int to be a very handy piece of
software.
At least for determining antenna pattern and F/B.
I would not trust the gain figures too much.
73 Con DF4SA
VE6YC wrote:
>To measure the gain and F/B I transmitted a 50 watt AM signal on
>28.700 and Steve used "Polar Plot" ( http://www.g4hfq.co.uk )
>and a sound card on receive. I rotated my beam the full 360 deg.
>"Polar Plot" did the rest.
>
>Like I said it is unscientific as it is using the audio out of the
>radio to measure the gain.
>
>OTOH it seems to work quite well, another program you can use
>is "Rig Master" by I0JX. It works well with Kenwood radios and
>has a polar plot using the rig control connection to the radio.
>
>Peter
>
>
>
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