[Elecraft] Strange "Ticking" sound with K3/0 Mini to RemoteRig for remotely controlling K3.

[Oliver Dröse]

Hi Brian,

I have never heard anybody complaining about my signal having a ticking 
noise. But, when I power down the K3/0 mini I hear it, too, and quite 
loud. It goes away as soon as I disconnect my mic from the mini! No 
matter if using the front socket or the 3,5 mm socket. As soon as a mic 
is plugged in and the mini is turned off there's ticking. Must be 
something in the mini itself (or the mini in conjunction the the RR 
controller) as I did not have it when I still had the old PCBs inside 
(before the swap against the new ones with a display readable when tilted).

Can you confirm the ticking goes away in your setup when you un-plug the 
mic? That might give Elecraft a hint for trouble shooting.

Tnx & 73, Olli - DH8BQA

Contest, DX & radio projects: http://www.dh8bqa.de


Am 05.10.2014 23:36, schrieb Brian F. Wruble:
> Hi All:
>
> The symptom I am describing persists despite changing routers, internet
> systems, and cities.  In a QSO this morning, the other parties reported a
> ticking sound on my transmitted signal --- faint but noticeable --- and I
> could also hear it in XMIT Monitor.  I was operating my remote gear as a
> test --- in the same room as the K3, and on the same LAN.
>
> I have now set myself up 110 miles away, and the sound persists.  I am able
> to work others, get good signal reports, but I can hear the tick tick tick,
> about 2 per second.
>
> In testing, I find the sound is there even if I power down the gear --- the
> radio and the control end.  It persists if I remove 12VDC from the K3/0
> mini.  Also if I remove the wifi module from the RemoteRig control box.
>
> If I remove power from the RemoteRig, it goes away.  With power to the RR,
> the ticking goes away if I unplug the "TTL" line from the K3/0 mini.
> Unplugging the other lines makes no difference, though it becomes fainter
> if I unplug "Aux/Mic." It persists if I remove the ethernet cable
> connecting the RemoteRig to my router.  It persists if I unplug the USB
> line from the RemoteRig to my PC.
>
> This symptom appeared after a good period of time when everything worked.
> And all functionality is still there --- just this maddening tick tick tick
> --- like something from Edgar Allan Poe.
>
> All ideas gratefully accepted.
>
> 73 de Brian W3BW
>
> *Brian F. Wruble, C.F.A.
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