[Elecraft] [K3] Issue with HI CUR on 12m

[Bill Coleman]

In this case, it wasn’t RG-213, but RG-303. The author regrets the error.

> On Oct 14, 2020, at 1:45 PM, Alan - G4GNX <g4gnx at g4gnx.com> wrote:
> 
> 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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Bill Coleman, AA4LR, PP-ASEL        Mail: aa4lr at arrl.net
Web: http://boringhamradiopart.blogspot.com
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