> 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.
Not true. The BN-86 is a voltage balun (three windings on a ferrite
rod). The BN-4000 is the newer design "current" balun (ferrite beads
on coax).
73,
... Joe, W4TV
> -----Original Message-----
> From: towertalk-bounces@contesting.com
> [mailto:towertalk-bounces@contesting.com] On Behalf Of Charles Johnson
> Sent: Tuesday, August 22, 2006 4:21 PM
> To: Clint Talmadge
> Cc: towertalk@contesting.com
> Subject: Re: [TowerTalk] HyGain BN style balun question.
>
>
> 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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> >
> >
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