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@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@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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