Thx, Nick... Hmm 25 dB or even more, that is quite good and will make the array have even better patterns than I calculated since it had only 13 dB sidenulls when modelled with EZNEC in several different configurations. I recall Andy telling me he got about 18 db side nulls.
I'm curious, has anyone else with an ALA100 measured the side null depths ? I was unable to find any review online except Guy's discussing null depth. 73 KAZ -----Original Message----- >From: Nick Hall-Patch <[email protected]> >Sent: Jan 26, 2009 12:51 PM >To: Mailing list for the International Radio Club of America ><[email protected]> >Subject: Re: [IRCA] ALA 100 > >At 18:07 1/26/2009, you wrote: > > >>For those who have ALA100's, I am curious as to what the front-side ratio is >>in practice..ie how deep are the side nulls ? > >I would think that's mostly dependent on the geometry of the loop, Neil, which >is up to the user. Guy Atkins put a nicely constructed loop on a rotator: > >http://perseus-sdr.blogspot.com/2006/07/close-up-wellbrook-ala-100-antenna.html > >and found 25 to 30 dB nulls. > >best wishes, > >Nick > > _______________________________________________ IRCA mailing list [email protected] http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: [email protected]
