Re: Course only shows North and losing link to AVM
The 296 is proven to work just fine with the HSI as long as you have all the settings and wiring correct.
In the "Fast" mode, the Garmin outputs the following sentences:
GPRMC
GPRMB
GPRMH
as well as a series of proprietary garmin sentences then repeats.
In the 'Normal" mode, the Garmin outputs the following sentences:
GPRMC
GPRMB
GPGGA
GPGLL
GPBOD
GPBWC
GPVTG
GPXTE
GPRMH
GPAPB
then the proprietary garmin sentences and repeats.
The Dynon AP needs the following sentences to work with a GPS:
GPRMB
GPRMC
GPGGA
GPBOD or GPAPB
I guess I found the answer to my observation. Re-reading the D100 installation manual and the GPSMAP 296 ops manual, I found that the EFIS needs one of $GPBPD or $GPAPB in order to show current CRSE on the OBS. Perusing the various X96 series ops manuals revealed that only the Garmin 695/696 outputs one of these strings.
It seems that I will have to live with the EFIS/HSI always showing the GPS CRSE 360 in magenta.
Am I right to presume that the early X96 Garmin can't be made to output one of these strings with a software mod only?
C-GMPU