If you want a little more challenging antenna project for LEOs, look at an Double Cross. I built one last fall and I have an OK view of the horizon and my AOS is about 3-4 degrees above the horizon for LEOs and the ISS. It throws in some phasing which makes it more fun to build.
http://www.hffax.de/html/simple_apt_antenna.html http://www.poes-weather.com/~aptdecoder/jerry/CrossConcept/Documents/MARTES-QST-Feb-2008.pdf http://www.poes-weather.com/~aptdecoder/jerry/CrossConcept/Documents/DCA-For-Beginner.doc http://rjclick.perso.sfr.fr/cariboost_files/DCA-Assembly-Hints.pdf -Tim -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of William H. Fite Sent: Wednesday, May 11, 2011 8:14 PM To: Greg Zenger [N2GZ] Cc: [email protected]; FlexRadio Reflector Subject: Re: [FlexEdge] [Flexradio] Antenna query Well, Greg, that was my impression. Hell, said I, I could build that in an afternoon. One of the guys in the local club was praising it. I'm currently using an Austin Ferret, which is fine for hitting every repeater within 75 miles or so. I thought it would be fun to try some of the easier sats before I got all wild with az-el and yagis and so forth. The Ferret is worthless for that. I've looked at the eggbeaters but users are by no means unanimously enamored of them. Thanks for the advice, guys. Bill On Wed, May 11, 2011 at 7:49 PM, Greg Zenger [N2GZ] <[email protected]>wrote: > Ill be honest, it looks like junk. Its nothing more than a 1/4 wave > vertical over a 4 radial counterpoise. If you wanted to build your own > it would be very simple and cost only a few dollars. > > Your money would be better spent getting a Diamond or Commet base antenna: > http://www.rfparts.com/diamond/Product_Catalog/base_station.html > http://www.cometantenna.com/ > > > if you are looking to make weak signal contacts on SSB, a horizontally > polarized antenna such as the M2 HO loops would do well: > http://www.m2inc.com/products/uhf/70cm/432holoop.html > > If you want to do weak signal and satellite work, consider the M2 > Eggbeater antennas > > http://store.fastcommerce.com/m2incshopcom/satellite-package-1-eb144-e > b432-c rossboom-ff8081812f4359f1012fb1bbff7f5354-p.html > > > Of course, for weak signal work, a beam is preferred, but I have made > contacts over 500 miles with my 70cm HO loops during band openings. > > -Greg > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of William H. Fite > Sent: Wednesday, May 11, 2011 6:47 PM > To: FlexRadio Reflector; [email protected] > Subject: [Flexradio] Antenna query > > Please forgive me for going off topic here but is anyone familiar with > this antenna? > > http://www.gopherlink.com/DeltaXray/vhfUHFant.htm > > Opinions will be greatly appreciated. > > Thanks, > > Bill > _______________________________________________ > FlexRadio Systems Mailing List > [email protected] > http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz > Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ > Knowledge Base: http://kc.flexradio.com/ Homepage: > http://www.flexradio.com/ > > _______________________________________________ Flexedge mailing list [email protected] http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is used for posting topics related to SDR software development and experimentalist who are using beta versions of the software. _______________________________________________ Flexedge mailing list [email protected] http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is used for posting topics related to SDR software development and experimentalist who are using beta versions of the software.
