[TowerTalk] Homebrew 30m beam

[maflukey at gmail.com]

Just a question - but why Moxon 30m and not just 2-el?    Moxon advantage on 40m is the improvement of performance bandwidth compared to "typical" design with shortened 40m elements.   30m band is only 50 khz wide, which can be nicely covered even with shortened elements.

Matt
KM5VI



-----Original Message-----
From: TowerTalk <towertalk-bounces at contesting.com> On Behalf Of Jack Brindle via TowerTalk
Sent: Tuesday, April 30, 2024 12:16 PM
To: Mike Fatchett W0MU <w0mu at w0mu.com>
Cc: towertalk <towertalk at contesting.com>
Subject: Re: [TowerTalk] Homebrew 30m beam

There are a lot of us thinking “wow, I’d love to have an XM240” about now. But…

I would take a really good look at turning it into a Moxon for 30m. No traps needed, just some extensions a right angle.
I don’t believe that the right angle is magical, so you might be able to attach wires to the ends and have them travel back towards the boom attachments.

I know that Dave, W6NL converted his 240 to a 40m Moxon, no reason that it wouldn’t also work shortened for 30 meters.

73,
Jack, W6FB


> On Apr 30, 2024, at 9:30 AM, Mike Fatchett W0MU <w0mu at w0mu.com> wrote:
> 
> I have a bunch of Cushcraft 40-2CD XM240 elements hanging around.  Could the elements be shortened to work on 30m?  They all have coils and a capacitance hat as expected.
> 
>  The boom would also need to be shortened a bit.
> 
> Mike W0MU
> 
> 
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