Posted by
Steve Ellington on
Feb 04, 2009; 10:21pm
URL: http://elecraft.85.s1.nabble.com/K3-Relay-noise-tp2269079p2271978.html
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
[hidden email]
----- Original Message -----
From: "Jessie Oberreuter" <
[hidden email]>
To: "Doug Faunt N6TQS +1-510-655-8604" <
[hidden email]>
Cc: "Elecraft mail list" <
[hidden email]>; <
[hidden email]>
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 <
[hidden email]>
>>
>> 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
>> >
[hidden email]
>> >
>> >
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