[Elecraft] [K3] Issue with HI CUR on 12m
Alan - G4GNX
g4gnx at g4gnx.com
Wed Oct 14 13:45:41 EDT 2020
Not wishing to pick a fight, but he said that he is using a balun rated
at 1KW.
What you describe is a common mode choke and as I'm sure you know, that
is not a transformer which is what I described.
I can see Jim's frustration. Folks really need to get to grips and
properly understand the terms they are using, otherwise we get into
meaningless arguments and false advice.
RG213 is a commonly used co-axial cable:
https://www.awcwire.com/productspec.aspx?id=rg213-coaxial-cable
73,
Alan. G4GNX
------ Original Message ------
From: john at kk9a.com
To: elecraft at mailman.qth.net
Sent: 14/10/2020 18:17:00
Subject: Re: [Elecraft] [K3] Issue with HI CUR on 12m
>AA4LR is using #43 ferrite beads on RG-313 coax. I am not sure what RG-313 is however there should be no ohm meter short unless he is using a hairpin match. Perhaps there is a flaky connection somewhere in his system. I had a lot of RF feedback problems with my K3S when using a corroded station in the Caribbean but no current warnings.
>
>John KK9A
>
>
>
>Alan - G4GNX wrote:
>
>
>I presume that you disconnected the feeder from the balun when you did
>the DC Ohms test? If not, there is something wrong because you should
>see almost a dead (DC) short through the primary of the balun.
>
>I must admit I put off replacing my antenna until I was forced to. Might
>be the way to go. :-)
>
>73,
>
>Alan. G4GNX
>
>
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