David
Good point, also my VFO does not go down that far.
g3kev
----- Original Message -----
From: "David Pratt" <[email protected]>
To: <[email protected]>
Sent: Wednesday, March 02, 2011 11:17 AM
Subject: LF: WRC-2012 proposal for 'near' 500kHz band(s)
> I was somewhat disturbed by the piece in last Sunday's GB2RS news that
> gave preliminary information about the proposals to WRC-2012 for an
> allocation near to 500kHz.
>
> It states that the initial proposal for 15kHz allocated was between 415
> to 526.5kHz. Due to future maritime use, the RSGB is proposing
> 472-487kHz, while the US will be proposing two bands totally 15kHz, viz
> 461-469 and 471-478kHz.
>
> I wonder whether any thought has been given to the fact that the IF of
> medium wave broadcast receivers in the UK is usually either 465kHz or
> 470kHz? In the US the IF is more usually 450kHz or 455kHz.
>
> This being so, any operating particularly at the lower end of 472-487kHz
> is very likely to cause interference to AM broadcast reception.
>
> I recall when I took my Morse test at Portpatrick in 1954. Broadcast
> reception was repeatedly interrupted by GPK operating on 472kHz.
>
> Sorry it this has been covered before. I could have missed it.
>
> 73 de David G4DMP
> --
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> | David M Pratt, Kippax, Leeds. |
> | Website: http://www.g4dmp.co.uk |
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