Ian, Here are the two outputs with the comp button on and off. <SOH>00uVE7CUS:6 .Q$-A%H y jpskmail 0.6.0c80DB<EOT> <SOH>00uVE7CUS:26 !4904.13N/12305.40Wyjpskmail 0.6.0c05F7<EOT> Darrel, VE7CUS On 2010-09-27, at 10:58 PM, Ian Wade G3NRW wrote: > From: Ian Wade G3NRW <g3nrw@xxxxxxxxxxx> > Date: Tue, 28 Sep 2010 Time: 06:02:40 > >> Darrel >> >> You may find my programs MICENC and APRSDEC useful, at: >> >> http://www.tapr.org/~g3nrw/ >> > > Darrel > > Taking this further, I ran your data through APRSDEC, and got the output > listed below. In 3 of the records it QUESTIONs your position :-) > > Next question: what is the compressed posit that is causing you the > problem? >