T&T: The Capn and NEMA

[Peter Bennett]

Wednesday, August 30, 2006, 6:21:05 PM, Jim wrote:

JM> Hello All,
JM> I have recently installed a Raymarine Autopilot and I have got it wired such
JM> that it can either accept data from my GPS's or from my laptop.  My question,
JM> is there a way for the Raymarine 6000 display,  to display the name of the
JM> waypoint that is selected and coming from the Capn. laptop?  It displays the
JM> name when it is connected to the Garmin GPS's,  and it displays the Bearing to
JM> Waypoint,  Distance to Waypoint,  and XTE from  the Capn,  but it won't
JM> display the waypoint name.  It will display the name from the Garmin's.  This
JM> is a shortcoming of the Capn software,  and I need to know if anyone has found
JM> a solution to it.

JM> Thanks,
JM> Jim Monahan


According to my NMEA-0183 FAQ, both the APB and RMB sentences should contain the destination waypoint ID.  You'd have to look at the NMEA output from "The Capn" with Hyperterminal or a similar program to see what, if anything they put in the "destination waypoint" field.  (I'm currently beta-testing a program that seems to put the origin waypoint ID in the destination ID field of an RMB sentence - further investigation required...)

Raymarine's SeaTalk system can apparently only display the last four characters of a waypoint name.

-- 
Peter Bennett, VE7CEI    Vancouver, B.C., Canada
Lien Hwa 28 (AKA Polaris 30) "Sea Spray"
GPS and NMEA info: http://vancouver-webpages.com/peter 
Vancouver Power Squadron: http://vancouver.powersquadron.ca