[OZAPRS] Voice Alert
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
Hey, aren't there supposed to be more countries on 50Hz than 60Hz?
ozaprs mailing list
ozaprs at marconi.ics.mq.edu.au
More information about the Ozaprs