----- Original Message -----

From: qrss

To: [email protected]

Sent: Saturday, May 14, 2011 2:47 PM

Subject: Re: LF: qrm 82Hz.jpg

Hi Henny

Nice, (or no so nice), to see the noise. Do you know the source of the equally spaced lines which start at greater amplitude.
I assume it is mains related, I have similar lines visible now, centred on 75Hz, they occur regularly, I have considered that they may be trains (we have 50Hz trains in the UK). Problem is the period is over 1Hour that would mean I see the radiation from the overhead power lines, after they leave the local station until they get around 100km distant.

I think Marcus has looked at at railway interference.

73 Eddie

On 14/05/2011 11:59, henny van elst wrote:

Hi Eddie,Chris,

a picture with Qrm

Henny pa3cpm

73's

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qrm 82Hz.jpg

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