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Re: Interference from electric fence?

Subject: Re: Interference from electric fence?
From: "Jez" tempjez
Date: Wed Jun 5, 2013 2:28 pm ((PDT))
recorders from Sound Devices, Zaxcom, Sonosax & Nagra don't pick it up - due to 
their better shielding.

--- In  Ray Mansell <> wrote:
> It's an electromagnetic pulse, and unless all of your electronics are
> well-shielded, it is likely to register. The same thing happens when
> lightning strikes close by - you can often hear a 'click' just before the
> thunder itself appears on the recording. This click is caused by the
> electromagnetic pulse generated by the lightning, and by measuring the time
> difference between this 'click' and the start of the thunderclap, you can
> calculate the approximate distance to where the lightning struck. I had one
> last year in the woods next to the house - less than 100 feet away.
> Ray
> On Wed, Jun 5, 2013 at 2:10 PM, David's Mail <> wrote:
> > **
> >
> >
> > I was in despair, ready to even read the manual (that's pretty serious)
> > when out with my Telinga Pro7, connected to a decent recorder. I could pick
> > up birdsong with clarity, as well as an intermittent click from heaven
> > knows where. I checked all the user, monitoring and recording settings,
> > verified that my phone was off, routed the mic through an SQN (I'm not sure
> > what I expected by doing that), emptied the grasshoppers out of the
> > parabola etc. still the incessant click every few seconds. I guess you know
> > where I'm going with this - sure enough, I was standing a few metres away
> > from an electric fence.
> >
> > I know what it is now, on the few occasions it has occurred since.
> >
> > I couldn't say if it is the mic or the recorder though.
> >
> > David
> >  
> >

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