[CQ-Contest] Inter-station interference
Barry Kutner
w2up at mindspring.com
Thu Aug 31 20:56:02 EDT 2000
Maybe K3LR can answer. According to N2NT, Tim removed all the
ferrites to descrease the noise.
Barry
On 31 Aug 00, Bill Coleman wrote:
> On 8/31/00 11:55 AM, Barry Kutner at w2up at mindspring.com wrote:
>
> >Andy mentioned
> >that K3LR found that ferrite baluns on antennas actually increase
> >broadband hash noise, and after removing them, there was less
> >interference between stations. Two questions:
> >1. Has anyone else verified this?
> >2. Is a Hygain BN4000 a ferrite balun?
>
> Huh?
>
> In the November 1998 issue of CQ Contest, K3LR wrote an article about a
> 3-high remote stack switch.
>
> Tim talks about using current chokes on all his antenna feedpoints,
> another choke at the remote antenna switching box, and a third where the
> feedline goes into the wattmeter at the shack. These chokes serve to
> isolate the sheild of the feedline.
>
> His comment, "It is amazing what the installation of these
> high-performance chokes has done to decrease interference and noise
> issues at my multi-multi contest station."
>
> Tim used a W0IYH design, which certainly uses Ferrite beads.
>
> Has Tim changed his mind?
>
>
>
> Bill Coleman, AA4LR, PP-ASEL Mail: aa4lr at atlnet.com
> Quote: "Boot, you transistorized tormentor! Boot!"
> -- Archibald Asparagus, VeggieTales
>
--
Barry Kutner, W2UP Internet: w2up at mindspring.com
Newtown, PA FRC alternate: barry at w2up.wells.com
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