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[aprssig] APRS Green

Jan T. Pharo la2bba at jpharo.net
Tue May 6 14:51:54 UTC 2008

"Wes Johnston, AI4PX" <wes at ai4px.com>, Tue, 6 May 2008 08:43:23 -0400:

>Maybe people using commercial power could TX a 60.0 hz pl tone like voice alert?  lol <ducking>

Well, I see the ironic part of that one :-), but:
It was suggested (by Bob, I think) that european hams use a PL
differently from 100Hz, e.g. in Voice Alert, to avoid interference
from or with the AC frequency of 50 Hz. However, many repeaters use a
PL of 100 Hz, and nobody afaik has had any trouble with that.

73 de Jan, LA2BBA
Hvaler, Norway

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