[TowerTalk] Low loop in a sloping configuration

Rudy Bakalov via TowerTalk towertalk at contesting.com
Sun Dec 28 09:35:15 EST 2014


I actually do have the exact same setup- an inv-V at roughly 90' with both ends sloping a couple of hundred feet away from the tower. The apex is more likely ~120 degrees than 90. It works really well (skimmer data shows actual performance much better than theoretical), but I was wondering if I can improve on it, particularly on receive where I feel I don't hear well enough. I guess my question is "if a piece of wire of certain length works really well, what happens if I double the length of the wire".
Rudy N2WQ
    
I'm curious what you desire to achieve from such an antenna.  It's not 
likely to be an improvement over what you already have.

A few years ago, before I was able to put up my current tower and yagis, 
I suspended a 40m diamond-shaped loop from a 55 foot tall pole ... 
sloped toward Europe from here in Arizona and fed at the bottom apex.  
It worked OK, mostly because I live on a steep hillside facing Europe, 
but in my opinion it didn't offer anything special other than it was 
also possible to use it on other bands with a decent tuner.  Keep in 
mind that unless you feed it at one side for vertical polarization that 
half your current distribution is going to be pretty close to the ground.

In my opinion, you'd be better off stringing an Inverted-V from the top 
of your tower if you want something horizontally polarized to complement 
your existing verticals.

73,
Dave   AB7E   


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