[amsat-bb] Helical Antenna for 2-meters

[Dave Mann]

HOME BREWING A HELIX, VK5ZAI STYLE 

This is the title of his article, unable to find website again.

HTH

Dave

Sent from my iPad

> On Feb 5, 2017, at 15:31, Rick Tejera <SaguaroAstro at cox.net> wrote:
> 
> Please share the link. Sounds interesting
> 
> 73
> Rick
> K7TEJ
> 
> 
> 
> Sent from Mail for Windows 10
> 
> From: Dave Mann
> Sent: Sunday, February 5, 2017 12:49
> To: amsat-bb at amsat.org
> Subject: Re: [amsat-bb] Helical Antenna for 2-meters
> 
> Thanks to all!  I researched more and found a design on a VK's website.  I'll be digging into that real soon now.
> 
> 73
> Dave
> N4CVX
> 
> 
> Sent from my iPad
> 
>> On Feb 5, 2017, at 09:06, Dave Mann <cwo4mann at comcast.net> wrote:
>> 
>> I just did some calculations from the ARRL Antenna Handbook.  I came up with a 6-turn helical with a diameter of 25.826" and a length of 121.65".   My first thought was "whoa, dude, like OMG!" (I'm a high school teacher, ok?)   I rechecked my calculations and came up with same, plus an impedance of 150 ohms.
>> 
>> Years ago I used a Fritzel Helical for 2m when I was DA1BB and VP2EHF (during Hurricane Luis in 1994 it ended up someplace out in the Anagada Straights between Anguilla and Sombrero Island).
>> 
>> What say, you all?   Advice, comments welcomed
>> 
>> 73
>> Dave, N4CVX
>> 
>> 
>> Sent from my iPad
> 
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> _______________________________________________
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