In article , Ian Jackson
wrote:
In message , Jim Lesurf
writes


[1] Or 8kHz for those regions of the world where 8kHz spacing was
adopted. 9kHz isn't uniform around the world IIRC.

Out of interest, which region is 8kHz? I thought it was only 9 or 10.
I've had a quick look, but can't find 8.

Afraid I've forgotten! :-) It may be either Africa or the USA, but I
can't recall. I do remember that the World Conferences established some
regions as 8kHz and others 9kHz. Think this was when the BBC on long wave
went from 200kHz to 198kHz to suit. But alas my memory of this is hazy.

IIRC one of the Quad AM tuners also had a choice of notch filter frequency
to cater for the region.

Slainte,

Jim

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