[VHFcontesting] Log Periodic Antenna Performance?

[Paul Decker]

I agree, George and Sebastian are right on, just tell them it is a TV antenna.    The roof material is definately a huge loss especially at the highter frequencies.   Even an unmodified TV LPDA will likely be better than an indoor yagi. 



Paul, kg7hf 



----- Original Message ----- 
From: "George Sintchak/WA2VNV" <wa2vnv at optonline.net> 
To: "Les Rayburn" <les at highnoonfilm.com>, vhf at w6yx.stanford.edu, "VHF Contesting Reflector" <vhfcontesting at contesting.com>, "WSJT Group" <wsjtgroup at yahoogroups.com> 
Sent: Friday, May 8, 2009 7:04:19 PM GMT -05:00 US/Canada Eastern 
Subject: Re: [VHFcontesting] Log Periodic Antenna Performance? 

Speaking for some personal experiments several years ago, you should see at 
least a 10 dB increase in signal levels, depending on the frequency,  your 
roof materials and the height increase over the old attic antennas. You 
could always tell them it's only a TV antenna(s). 

Good Luck, 

George 

----- Original Message ----- 
From: "Les Rayburn" <les at highnoonfilm.com> 
To: <vhf at w6yx.stanford.edu>; "VHF Contesting Reflector" 
<vhfcontesting at contesting.com>; "WSJT Group" <wsjtgroup at yahoogroups.com> 
Sent: Friday, May 08, 2009 4:27 PM 
Subject: [VHFcontesting] Log Periodic Antenna Performance? 


A few days ago I noticed that one of my neighbors in our deed restricted 
neighborhood had erected an outdoor TV antenna, complete with a rotor and 
heavy duty mast to raise it above the roof line. Some polite inquires 
revealed that our home owners association had been forced to allow the 
antenna under Federal Law. 

More checking, and study makes it seem like this might really be an option 
for myself as well. Most of you know that I've been chasing VUCC on 6-1.2ghz 
for the past year or so using nothing but an attic full of indoor antennas. 

I'm now in the process of drafting a proposal to allow the erection of a 45 
foot tower my back yard, with a single log periodic antenna and rotor. The 
hardline feedline would be connected to an "A/B" switch to allow the signals 
to be routed to either my television set or the ham shack. 

My basic question is what can of improvement am I likely to see over the 
single band beams in the attic vs. a LPA? Which model would offer the best 
performance? Is it going to be worth the trouble, expense, and possible 
legal fees necessary? 

73, 




Les Rayburn, N1LF 
EM63nf 
121 Mayfair Park 
Maylene, AL 35114 
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