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Re: LF: Local AM transmitter on PC output

To: <[email protected]>
Subject: Re: LF: Local AM transmitter on PC output
From: "Graham" <[email protected]>
Date: Tue, 2 Oct 2007 17:27:14 +0100
References: <[email protected]> <[email protected]>
Reply-to: [email protected]
Sender: [email protected]

Several tens of mV's  .... is that all !!!

I can run a speaker off my ae (coil and diode) , check out where radio merseyside is located .. :-(

G ..


----- Original Message ----- From: "John Pumford-Green GM4SLV" <[email protected]>
To: <[email protected]>
Sent: Tuesday, October 02, 2007 4:19 PM
Subject: Re: LF: Local AM transmitter on PC output


On Tue, 2 Oct 2007, Andy Talbot wrote:

While testing an IQ upconverter chip, I discovered I've got several
tens of millivolts of Virgin AM on 1215kHz coming out of my PC's audio
output.  There is enough signal to see it on a frequency counter and
view the AM on a scope.

There is presumably a transmitter nearby, and/or some curious
resonance in the house wiring that accentuates pick up of this signal.
Its not the LF antenna picking up the signal, so I'm wondering if the
ring-main is forming a resonant loop :-)

Does anyone know where the transmitter site for this station is located?

Andy  G4JNT
www.scrbg.org/g4jnt




Hello Andy,

I think you're near Southampton?
Best guess (you're a bit out of my area) is Fareham, 1KW (low power
filler - HI!)

Found this listing too

http://mysite.wanadoo-members.co.uk/freq_find/Ind_national.pdf

Any help?

John GM4SLV
Shetland




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