One I've used several times... http://www.wireless.org.au/~jhecker/stuff/Helix.php from
http://www.wireless.org.au/~jhecker/ and his standalone program http://www.wireless.org.au/~jhecker/helix/ HelixCalc.exe to calc and print the form for winding the helix. It works... Did it my self and still using it... below http://picasaweb.google.com/ve4yz.alan/24Ghz#5241092279489872194 > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Michael Tondee > Sent: October 30, 2009 11:03 PM > To: Amsat BB > Subject: [amsat-bb] Simple 2.4Ghz helix plans? > > I threw this out there on the eham satellite forum looking > for answers but I'll try here too. > I'm looking for some fairly simple plans for this antenna. > Everything I find either seems to be intended for WiFi or if > it is ham related is full of mathematical formulas to figure > length, diameter, spacing etc. > Math was never my strong suit so I'd prefer to find something > with the actual already computed dimensions clearly stated. > Preferably in English rather than metric measurements. I > found an article in the May/June 2008 AMSAT Journal that > looked promising but there are no hard numbers, just the > formulas and I don't have a calculator capable of some of > the computations, much less being able to work them out in my > head. Been a long time since I was in school!.. hi hi... I > have a downconverter I'm not sure even works and I don't want > to spend a huge amount of time and trouble to be able to test it. > Tnx and 73, > Michael, W4HIJ > _______________________________________________ > Sent via [email protected]. Opinions expressed are those of > the author. > Not an AMSAT-NA member? Join now to support the amateur > satellite program! > Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb > _______________________________________________ Sent via [email protected]. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
