Topband: First attempt at beverage antenna, not working as expected

Alex Goldenberg kajotus at
Sun Jan 16 11:35:41 PST 2011

>My first beverage, I was expecting better results.


Hello, Mark and others! 

I agree with others that your BV is too short, but 

What is your grounding system? 

How long a grounding rods? What kind of ground surface do you have over

I would be separating the problems here 


First one is – half wave BV system should have not too “sharp” azimuth

And the elevation angle should be pretty high 


Second problem can be – If your BV system was having  bad ground -  your
antenna looks like piece of wire above the ground.

This wire should have more or less same reception on a both ends –front and
. In this (bad) case you will loss 

expected “gain” on your main direction (45 deg) 


If that is exactly your situation - I would recommend to work in getting as
best performance as possible  from your “poor” BV  :

-          to arrange good grounding system on a both BV ends by using long
(4 ft or longer) grounding rods or/and grounding radials .

-          to “play” with termination resistor value in order to adjust
Front to Back ratio 
. ( and actuaaly – get the best reception from EU
direction ) 

This process will require a bit more time spent running around your BV ,
than expected 
.just according my own experience – two waves 

Beverage built “somehow” and not adjusted will beat perfect mounted ½ wave

This is one of the few cases , when “longer” definitely means “better” .:-))


Apologies for my “cubical” English .

Good luck !


Alex Goldenberg VE7IRU

Mailto: alex(at)minstech(dot)com <BLOCKED::mailto:alex at> 



More information about the Topband mailing list