[amsat-bb] Re: Simple 2.4Ghz helix plans?
ve4yz at mts.net
Fri Oct 30 22:13:57 PDT 2009
One I've used several times...
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
> -----Original Message-----
> From: amsat-bb-bounces at amsat.org
> [mailto:amsat-bb-bounces at amsat.org] 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
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> the author.
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