[TowerTalk] HyGain BN style balun question.

[Charles Johnson]

The BN-86 and BN-4000 baluns are simply a piece of coax with the center 
going to one attachment point and the shield to the other. It should 
show infinite resistance between the two attachment points and between 
the coax center conductor and the coax shell. It should show zero 
resistance from the coax center to one of the attachment points and 
likewise, zero resistance from the coax shell to the other attachment 
point. My BN-4000 was faulty in manufacture (shorted coax center to 
shield) and I disassembled it after Hy-Gain refused to replace it with a 
new one because I had waited over a year to actually put it into use 
after buying it as part of a tower project. I replaced it with a 1:1 
balun from DXEngineering. Much better quality product.

73, Charles, K4ZRJ

Clint Talmadge wrote:
> It thought the HyGain Balun is supposed to be a current balun, which to my understanding is just ferrite beads on coax.  If this were true, the balun would show no resistance from the center pin of the connector to one attachment point and infinite resistance to the other.
>
> Not so....  No resistance from/to any of the 4 accessible points (two element attachment points, center pin of connector and outer shell of connector).
>
> Has anyone ever had one of these apart and could explain the configuration ?
>
> I need this information because in my use of the balun, it makes a difference which side is center conductor and which side is shield.
>
> Clint - W5CPT
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