[Elecraft] K3: Relay noise?

[Joe Planisky]

My K3 also makes a clicking sound with keying, but it's extremely  
faint; I have to put my ear in physical contact with the rig to hear  
it.  That said, I don't think it's a relay.  I suspect it's current  
going through an inductor or transformer causing the windings to move.

73
--
Joe



On Feb 4, 2009, at 2:21 PM, Steve Ellington wrote:

> AH HA...See...I told you so. I bet they all do it and you guys are  
> just not
> listening. Where's the Elecraft experts? They should know if a relay  
> is
> supposed to be operational when keying. Maybe I'm just sensitive to  
> such
> sounds. I've had dozens of people try to tell me that TenTec rigs  
> don't have
> relays but I can hear them from 3 ft. away!
> Steve Ellington
> N4LQ at carolina.rr.com
> ----- Original Message -----
> From: "Jessie Oberreuter" <joberreu-elecraft at moselle.com>
> To: "Doug Faunt N6TQS +1-510-655-8604" <faunt at panix.com>
> Cc: "Elecraft mail list" <Elecraft at mailman.qth.net>; <don at w3fpr.com>
> Sent: Wednesday, February 04, 2009 3:03 PM
> Subject: Re: [Elecraft] K3: Relay noise?
>
>
>>
>>     My K3 makes a very quiet relay like keying noise as well.  Been
>> meaning to chase it down, but haven't had the time.  There was once a
>> suggestion that it could be a protection circuit due to high SWR, but
>> there's no reason why that should be happening.  I haven't tried
>> disconnecting the speaker just to make sure it isn't an electronic
>> artifact, but it sure sounds mechanical, and occurs even with  
>> headphones,
>> volume, and power turned all the way down.
>>
>>
>>
>> On Wed, 4 Feb 2009, Doug Faunt N6TQS +1-510-655-8604 wrote:
>>
>>> There's a relay that switches with mode change, CW/Data to SSB/AM.
>>>
>>> 73, doug
>>>
>>>  X_CMAE_Category: 0,0 Undefined,Undefined
>>>  Date: Wed, 04 Feb 2009 10:29:07 -0500
>>>  From: Don Wilhelm <w3fpr at embarqmail.com>
>>>
>>>  Steve,
>>>
>>>  No relay for either keying or T/R switching - it is all electronic.
>>>
>>>  73,
>>>  Don W3FPR
>>>
>>>  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
>>>> N4LQ at carolina.rr.com
>>>>
>>>>
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