[OZAPRS] Voice Alert

Dave Horsfall dave at horsfall.org
Thu Jul 29 22:44:15 EST 2004

On Wed, 28 Jul 2004, Robert Bruninga wrote:

> >Have we settled on 123Hz? [for voice alert?]
> I'm kicking myself for having chosen 100 Hz in the USA not realizing
> that some countries have 50 Hz power systems making that impossible.

You, and many others before you :-(

Silicon decoders, for example, come with a 120Hz notch filter, but *not* a
100Hz filter.

Hey, aren't there supposed to be more countries on 50Hz than 60Hz?

-- Dave
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