[Elecraft] control knobs lously

[Ron D'Eau Claire]

Unfortunately, yes, Thomas. Laptops are not very immune from RF, especially
things like touchpads. 

 

OF course, in Susan's case, if it happens in receive, there is no RF being
generated unless there is another source of RF nearby. Susan, is your radar
on or off? Any other emitters nearby? 

 

I've had problems on large ships with erratic electronics when they were
docked close to a powerful broadcast antennas. 

 

Is there somewhere away from your boat you can fire up the K3 and see if it
still misbehaves? Since it happens in receive, does it continue when you
disconnect your antenna and everything else except dc power? 

 

Ron AC7AC

 

From: Thomas Horsten [mailto:thomas at horsten.com] 
Sent: Sunday, December 25, 2011 3:11 PM
To: Guy Olinger K2AV
Cc: Ron D'Eau Claire; ussv dharma; elecraft at mailman.qth.net
Subject: Re: [Elecraft] control knobs lously

 

I don't think I have very much RF in the shack, but the little I do have is
enough to make the touch pad on my laptop completely erratic - no other ill
effects observed, is this a common thing? It happens on virtually all
bands/modes, but of course especially noticable on PSK31 and similar when
you tend to use the laptop while transmitting.

 

73, Thomas M0TRN (and a very merry Christmas to all!)

 

On 25 December 2011 18:57, Guy Olinger K2AV <olinger at bellsouth.net> wrote:

Does this only happen when the rig is keyed, or does it also happen when
you adjust pwr when K3 is in RX mode.  If it ONLY happens when you adjust
AND rig is TX, be sure you aren't suffering from RF in the shack.  RF in
the shack often presents as something totally weird, that doesn't seem to
make any sense.

73, Guy


On Sun, Dec 25, 2011 at 1:30 PM, Ron D'Eau Claire <ron at cobi.biz> wrote:

> Skipper, I believe that can be caused by a bad connection in the antenna
> system changing the load on the amp. That would explain the factory not
> seeing that behavior.
>
> I believe you are using a K3.
>
> Does it do that when connected to a dummy load (use a different
> cable/adapter than you use to connect to your antenna)? Be sure the KAT3
> tuner is bypassed (if you have it).
>
> Ron AC7AC
>
> -----Original Message-----
> when adjusting the knob (power level) the value jumps up, down, slow,
fast,
> all over the place.  Sent rig back for upgrade ...came back and this is
> still a problem...anyone else have this?
>
>
> If you don't change direction you WILL arrive exactly where you're
headed!!
>
> Susan Meckley, Skipper W7KFI-mm  AFA9SM
>
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