[TowerTalk] Vertical balun

[Jan Erik Holm]

Why a balun?

73 Jim SM2EKM
--------------

Don Havlicek wrote:
> Tom,
> Good question!
> I never used a balun on the 80m vertical, but might when I replace the 
> coax this Spring.
> I'll be interested in reading the responses to your query.
> Don
> N8DE
> 
> Tom Champlin wrote:
> 
>> The recent discussion of ground radials has been a big help for me. 
>> There is just one other thing that bothers me. Most hams would 
>> probably either run buried PVC to put the feed line in, which would of 
>> necessity be parallel with the nearest buried radials. Even if 
>> everything was above ground, my question would be the same. Assuming 
>> it would be desirable to use some kind of balun on the coax before or 
>> at the vertical feed point, possibly a W1JR toroid type, or some 
>> ferrite beads. The object being to keep RF from running back to the 
>> shack on the coax braid.
>> So, would one want to place this balun past the radial field but 
>> before the feed line gets close to the house or right at the antenna, 
>> or does it matter?
>> Tom W0HH
>> _______________________________________________
>>
>> See: http://www.mscomputer.com  for "Self Supporting Towers", 
>> "Wireless Weather Stations", and lot's more.  Call Toll Free, 
>> 1-800-333-9041 with any questions and ask for Sherman, W2FLA.
>>
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>>
> 
> 
> _______________________________________________
> 
> See: http://www.mscomputer.com  for "Self Supporting Towers", "Wireless 
> Weather Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with 
> any questions and ask for Sherman, W2FLA.
> 
> _______________________________________________
> TowerTalk mailing list
> TowerTalk at contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>