Posted by w7go on Feb 04, 2009; 11:37pm URL: http://elecraft.85.s1.nabble.com/K3-Relay-noise-tp2269079p2272389.html
No noise here at all, even putting my ear to the radio :-)
73,
Tony W7GO
wayne burdick wrote:
> It may be the delta in supply voltage on keydown slightly stimulating
> one or more relay coils. The DC shift could move the contacts a tiny
> bit. Or it might be an extremely small timing window, associated with
> T/R switching, that puts a little glitch on a relay control line.
> Either way it's nowhere near enough to change the state of a relay.
>
> Nothing to worry about; in fact it might be therapeutic. But I'll
> listen for it myself.
>
> 73,
> Wayne
> N6KR
>
>
>> My K3 makes a very quiet relay-like keying noise....
>>
>
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>
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