[Elecraft] [K3] RE: K3: Relay noise?

[AC7JW]

Thanks Steve.

It's sure strange that I get the same click whether I run 1 W, or 100 W.  I
could understand some sort of residual magnetic effect (for lack of a better
term) causing some mechanical movement to create the noise if it was only
present while running high power, in which case high currents are present,
and thus the potential for a powerful magnetic field. But at 1 watt- there
is something else going on. In any case, I don't think it's a problem- just
an annoyance.

Jason 

 

From: Steve Ellington [via Elecraft]
[mailto:ml-node+4143590-665332999 at n2.nabble.com] 
Sent: Wednesday, December 09, 2009 8:57 PM
To: AC7JW
Subject: Re: K3: Relay noise?

 

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 
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From: "AC7JW" <[hidden email]
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To: <[hidden email]
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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 
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