[aprssig] RE: [OZAPRS] Voice Alert
wa7ixk at arrl.net
Fri Jul 30 04:45:18 EST 2004
There is a lot of 123 hz use on western USA repeaters and remotes.
135.5hz is used mostly for closed systems.
100HZ for open systems.
Robert Bruninga wrote:
>VOICE ALERT Tone?:
>>>>chris.hill at crhtelnet.com.au 7/29/04 10:18:30 AM >>>
>>I gather you're recommending 123Hz for countries
>>that use a 50Hz power system?
>>(123Hz is inappropriate for countries with 60Hz power).
>oops, you are right there also! What I was suggesting was
>to go with what the Europeans had decided. so that
>at least everyone else everywhere is on the same tone.
>Then if we in the USA ever decide to change from 100 Hz,
>then everywhere would be just one time. Maybe the
>Europeans chose 136 Hz? I dont remember.
>aprssig mailing list
>aprssig at lists.tapr.org
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