[TowerTalk] HyGain BN style balun question.
k4zrj at bellsouth.net
Tue Aug 22 16:21:26 EDT 2006
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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