On 30 May 2005 21:44:12 -0700, "Pascal" wrote:

Now, that the problem with the NMEA interface of GpsMap 276C with my
autopilot is practically solved with the 3.21 upgrade, I would like
to rise again the issue about the DSC, making the following questions,
which I tried to made to Garmin, but has not received a consistent
answer:

snip
b) Knowing that the gps allows sending NMEA messages up to 3 devices,
and I am using only 2, can I use the COM1 to send NMEA to my VHF/DSC?

An NMEA "talker" should be able to drive at least 4 "listeners"

c) But, as I am receiving NMEA from the depth sounder, could I mix
this info with the NMEA from my VHF radio in the COM1 to receive the
"Position Reports", assuming that my new radio has NMEA in/out?

You can not simply "mix" the outputs of two NMEA talkers - you need to
use an NMEA multiplexer to combine them.


f) And, If I could use the 2 serial ports set to NMEA, how I can setup
the COM2 to 9600 bps, which is the speed that DSC needs, if the actual
software of GpsMap276C does not allows me to make this change?

Are you sure the DSC data from the radio is sent at 9600? NMEA-0183
should all be 4800.






--
Peter Bennett VE7CEI
email: peterbb4 (at) interchange.ubc.ca
GPS and NMEA info and programs: http://vancouver-webpages.com/peter/index.html
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