Re: K3: Relay noise?

Posted by Steve Ellington on Dec 10, 2009; 3:56am
URL: http://elecraft.85.s1.nabble.com/K3-Relay-noise-tp2269079p4143590.html

I used some plastic tubing stuck in one ear trying to track it down. I
narrowed it down to one relay but it's been at least 6 months ago and I
can't recall which one made the noise. I had suggestions to check for loose
ferrite chokes along the high current DC line but that wasn't the source. If
I happen to remember which relay it was, I'll post it here. 73
Steve
N4LQ
[hidden email]
----- Original Message -----
From: "AC7JW" <[hidden email]>
To: <[hidden email]>
Sent: Wednesday, December 09, 2009 9:40 PM
Subject: Re: [Elecraft] K3: Relay noise?

>
> I've followed this thread concerning a QSK clicking noise through all
> comments, as well as other similar threads on the list, but it doesn't
> appear as if anyone ever came to a firm conclusion as to origin of this
> clicking noise. As others have stated, I can hear a very faint mechanical
> clicking that follows my code when using QSK. It sounds like it's coming
> from the KPA100 region, but I can't tell for sure.
> Did anyone ever come to a conclusion, or receive any information from
> Elecraft?
>
> Thanks-
> Jason AC7JW
>
>
> Steve Ellington wrote:
>>
>> Is there a mechanical relay that follows keying? I've had my K3 for
>> nearly
>> a
>> year and didn't notice any relay noise until lately. I know the antenna
>> TR
>> is done by pin diodes but I can now hear the faint click of a small relay
>> that wasn't there before. I'm using ver. 2.8
>> Steve Ellington
>> [hidden email]
>>
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>
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