I should have mentioned this specifically, but I was operating the KX3
strictly from batteries at the time.

Connecting a 13.8V source to it (one that was plugged into the house power)
didn't really change whether the 'buzz' was present or not.

​The only thing that changed it was either unplugging the offending power
supply, or de-energizing that circuit in the house (by tripping the
breaker).​

​I guess it's not impossible that the thing was putting off a lot more
energy than I thought, and I was picking up a lot of common-mode noise on
the cable shield-- a lot more than I thought I would/should.​

​Good ideas though.​

​   Nick
​
On 9 February 2014 20:05, Matt Zilmer <mzil...@roadrunner.com> wrote:

> Hi Nick,
>
> After reading your reply, I think I have an idea.
>
> I've had the same problem in a mobile setting, where good grounds are
> scarce and there is a lot of transient noise around.  If -somehow- the
> noise put off by the charger were to get onto the 12V line into the
> KX3, you might get this effect.  I don't see how this could happen
> though.
>

-- 
*N6OL*
Saying something doesn't make it true.  Belief in something doesn't make it
real. And if you have to lie to support a position, that position is not
worth supporting.
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