Topband: Beverage Ant Thread

donovanf at starpower.net donovanf at starpower.net
Thu Jul 12 23:23:15 EDT 2018


Hi Carl, 


Since your BOG is producing signal levels close to your regular Beverages, 
its not actually performing as a BOG. Which is a good thing! 


A typical 225 foot BOG has much broader 3 dB beamwidth than a regular 
580 foot Beverage and much lower signal level. 


The primary benefit of a BOG is low profile, not performance. 


73 
Frank 
W3LPL 

----- Original Message -----

From: "Carl" <km1h at jeremy.qozzy.com> 
To: donovanf at starpower.net, topband at contesting.com 
Sent: Friday, July 13, 2018 12:48:43 AM 
Subject: Re: Topband: Beverage Ant Thread 

Frank, Ive run 3 500' BOGs on this granite hilltop for decades now, While 
not completely on the ground it goes over low ground cover, sticks, etc. 
Directivity appears good on 160 and the BCB and they are aimed close to RFI 
noisy neighbors that allow me to copy weak stations until they go to bed. 
The higher incoming angles are sometimes stronger than the regular 
Beverages, no preamp has been used. 

Carl 

. 
----- Original Message ----- 
From: <donovanf at starpower.net> 
To: <topband at contesting.com> 
Sent: Saturday, July 07, 2018 11:13 AM 
Subject: Re: Topband: Beverage Ant Thread 


> Hi Ed, 
> 
> 
> 600 feet is much too long for a BOG on any ham band except 630 meters. 
> Performance deteriorates as you lengthen a 160 meter BOG beyond 
> about 225 feet. 
> 
> 
> Because a BOG is so lossy, an unterminated BOG has significantly 
> reduced response from the backward direction. 
> 
> 
> 73 
> Frank 
> W3LPL 
> 
> ----- Original Message ----- 
> 
> From: "Edward via Topband" <topband at contesting.com> 
> To: topband at contesting.com 
> Sent: Saturday, July 7, 2018 12:12:50 PM 
> Subject: Topband: Beverage Ant Thread 
> 
> I have also been planning my own Beverage antenna. My situation will only 
> allow for a BOG which will be bidirectional and >600' long. 
> 
> I plan to use the DXE kit, specifically designed for ladder line. My 
> understanding is that 600' would be too long for a BOG on 160m. Though 160 
> is one application, my other passion is logging foreign BCB DX reception. 
> 
> What would the happy medium be? Maybe two separate antennas? 
> 
> Advice appreciated. 
> 
> 73, 
> Ed NI6S/7Z1ES 
> _________________ 
> Topband Reflector Archives - http://www.contesting.com/_topband 
> 
> _________________ 
> Topband Reflector Archives - http://www.contesting.com/_topband 


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