"Art Unwin" wrote in message
...
David, the antenna covers the distance covered by a mfj 259 b which is
1.7 to around
175 mega hz. Obviously it therefore has no limits above .Below I
cannot measure unless I modify my radio outside the amateur bands, ie
reflect swr outside the ham bands. Beam widths I can't determine as I
do not have enough segments available on my optimizer program . But I
believe that can be accomplished.

but wait... you have built it.. you can measure the swr, so why can't you
measure the beamwidth? pick an AM broadcast station and turn it and see how
wide the pattern is.