I'd suggest using compressed mode if you need the precision - it should 
get full precision in Garmin mode.

Scott

Lynn W. Deffenbaugh (Mr) wrote:
>  
> 
> Scott Miller wrote:
>  >> That !W! is supposed to have 2 more characters in there that are either
>  >> the raw additional digits (as implied by the T2-135 manual, "an extra
>  >> digit of precision") or a base-91-encoded pair of digits for each of the
>  >> lat and lon (per http://www.aprs.org/aprs12/datum.txt 
> <http://www.aprs.org/aprs12/datum.txt>
>  >> <http://www.aprs.org/aprs12/datum.txt 
> <http://www.aprs.org/aprs12/datum.txt>>).
>  >>
>  >
>  > Ah... the problem is that in Garmin mode it's not extracting the extra
>  > decimal places. It's converting from radians (IEEE double-precision
>  > floating point) to semicircles (32-bit integer) and decoding that to
>  > decimal minutes. The same function is used to handle received Base91
>  > compressed positions, so it's not going to be a quick fix.
>  >
> 
> Oh well, at least it's been identified and I'm not losing my mind! I'll
> watch for some future firmware revision to mention it and that will
> FINALLY be the fix to get me to pull my mobiles and get the T2s
> upgraded! While you're at it and assuming there's code space, how about
> 2 digits as well as the 1 that the documentation currently implies is
> supported?
> 
> Any chance it might be done before mid-June? I'm hoping/planning to
> take a T2/Alinco/Nuvi setup to Spain for a vacation then. Not that an
> additional digit of accuracy will help anything, it'd just be nice to be
> running the latest for the trip!
> 
> Lynn (D) - KJ4ERJ
> 
>  > Scott
>  >
>  >
> 
> 



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