On Mon, Jan 5, 2009 at 11:48 AM, Lynn W. Deffenbaugh (Mr) <ldeffenb at homeside.to> wrote: > > To throw out numbers, I'd say 1K for non-RF users gack! Think maybe you should check the APRS-IS design first? I don't know the upper limit on packet size, but it would pay to check it out. Think "APRS messages", not "small email". -Jason kg4wsv