[CQ-Contest] Adding 10m (was antenna analyzers)

[Mike Smith VE9AA]

Ahhh, middle of rooves in the wintertime are not known to be the safest places.

All my dipoles and verticals are ropes up over trees and/or pulleys.

(no climbing)

 

GL in whatever you decide Barry

 

73 Mike VE9AA

 

Mike, Coreen & Corey

Keswick Ridge, NB

 

From: Barry Jacobson [mailto:bdj at alum.mit.edu] 
Sent: February 7, 2023 4:37 PM
To: Mike VE9AA ve9aa at nbnet.nb.ca
Cc: CQ-Contest Reflector
Subject: Re: [CQ-Contest] Adding 10m (was antenna analyzers)

 

Hi Mike, thanks for the thoughts. That could be an option, but requires getting up on roof, and my climbing days are mostly behind me. I will probably try to trim the feedline if I have enough slack. But want to try to check EZNEC to see what I'm doing, first. In retrospect I probably should have used a folded or fan dipole. But the articles I read seemed to say wasn't necessary with a good tuner.

 

Will let you know how it works out.

 

Thanks for taking the time.

 

Barry WA2VIU 

 

--
Barry Jacobson
WA2VIU
bdj at alum.mit.edu 
@bdj_phd 

 

On Tue, Feb 7, 2023, 3:28 PM Mike VE9AA ve9aa at nbnet.nb.ca <ve9aa at nbnet.nb.ca> wrote:

Barry</pre></pre>Don't know if this has occurred to you but respectfully 
you *may* be overthinking this.</pre>If you can't get your '80m ladder 
line fed dipole " to be happy with your tuner on 10m, why not just 
</pre>add a 10m dipole on the same feed point? ( a la fan 
dipole)</pre></pre>This is how I get around "no 15m" on my ZS6BKW (SO2R) 
contesting antenna. </pre></pre>The ZS6BKW is fed with ladder line and 
then coax and the SWR on 15m is impossibly high, so I merely added a 15m 
dipole</pre>at the feedpoint and extended it out to some tiny plastic 
spacers 12' away from the feedpoint (instead of 50' away to far away 
trees)</pre></pre>This way I have a separate antenna for my SO2R setup 
which works on 10-15-20-40 & 80 </pre>(the 'BKW won't do 160m) which I 
see is probably the same issue you're having.</pre></pre>It cost me 
literally nothing and works very well.  See my CQWW CW 15m (so2r) 
results on 3830scores.com.</pre>Just trying to optimize 10
meters now, and think I will cut off 1/8 wave and see if it tunes. But
first want to try EZNEC, and see if it gives insight, and maybe get an
antenna analyzer if I can afford.

Thanks for writing.

Barry WA2VIU
</pre>
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