[OZAPRS] Voice Alert
amcdade at senet.com.au
Fri Jul 30 08:11:23 EST 2004
I think its a general cosensus... We've changed ( changing ) to 123hz in
73 .. Andrew .. VK5EX
----- Original Message -----
From: "Dave Horsfall" <dave at horsfall.org>
To: <ozaprs at marconi.ics.mq.edu.au>
Sent: Thursday, July 29, 2004 10:14 PM
Subject: Re: [OZAPRS] Voice Alert
> 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*
> 100Hz filter.
> Hey, aren't there supposed to be more countries on 50Hz than 60Hz?
> -- Dave
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> ozaprs at marconi.ics.mq.edu.au
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