[TowerTalk] HyGain BN style balun question.

John Wagner jwagner at dxengineering.com
Tue Aug 22 16:33:44 EDT 2006

The BN-86 I had on my old 204BA was a ferrite rod with turns of enameled
wire around it. It was a low power version of the BN-4000. The latest
BN-4000B data sheet claims it uses coax with type 77 ferrite beads over it
and capable of 2kw continuous...

John W8JJW

> 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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