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#1
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Geonav plotter & garmin 128 waypoints problem
I have connected the nmea output from the chartplotter to the nmea input of
my gps. Am I correct in thinking that I should be able to upload waypoints that are created on my geonav 8 chart plotter to a garmin gps128. Presently I dont see any.... I know that the connections/speed settings are o.k, because the plotter see the data from the gps. Also am I correct in thinking that the autopilot must be driven from the nmea output from the gps rather that the plotter nmea out. |
#2
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Geonav plotter & garmin 128 waypoints problem
You need to change the GPS setup to garmin/garmin.
-- Remove "nospam" from return address. "garry crothers" wrote in message ... I have connected the nmea output from the chartplotter to the nmea input of my gps. Am I correct in thinking that I should be able to upload waypoints that are created on my geonav 8 chart plotter to a garmin gps128. Presently I dont see any.... I know that the connections/speed settings are o.k, because the plotter see the data from the gps. Also am I correct in thinking that the autopilot must be driven from the nmea output from the gps rather that the plotter nmea out. |
#3
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Geonav plotter & garmin 128 waypoints problem
On page 44 of the manual posted on:
http://www.garmin.com/manuals/82.pdf Notice there IS an I/O format NONE/NMEA, etc., which puts the Garmin in Transmit GPS data ONLY mode, and it will not listen to anything. I'm not sure this Garmin will accept waypoints from an NMEA device. Look on this page 44 and you'll see a reference to GRMN/GRMN proprietary BS interface to other proprietary Garmin instruments SHARING WAYPOINT data. Notice how it says NOTHING about getting waypoints from anyplace else. This may be an indication it doesn't listen to waypoint statements from your plotter in NMEA/NMEA mode. They don't read all the statements and on the bottom of page 59 is the LIMITED statements it produces, which may not be of use to some instruments looking for different statements. Most all of them, however read GPRMB and/or GPRMC statements. This unit may not talk to your NMEA transmitting plotter for waypoint input. Looks from the text like it only accepts waypoints from GARMIN's proprietary data streams. On page 48 of the manual, you'll also want to be SURE the Garmin is set to the same Map Datum the plotter is using or you could be way off somewhere on the chart. Same is true for the mag heading reference on page 49. Don'tcha just love being on a boat with 5 DIFFERENT, INCOMPATIBLE, proprietarydammit interfaces, none of which can talk to anything else of use? Remember Betamax? Let's dump it all and tell the manufacturers we'll ONLY BUY PRODUCTS WITH USB INTERFACES from now on......STANDARDIZED! On Sat, 16 Aug 2003 18:53:02 +0100, "garry crothers" wrote: I have connected the nmea output from the chartplotter to the nmea input of my gps. Am I correct in thinking that I should be able to upload waypoints that are created on my geonav 8 chart plotter to a garmin gps128. Presently I dont see any.... I know that the connections/speed settings are o.k, because the plotter see the data from the gps. Also am I correct in thinking that the autopilot must be driven from the nmea output from the gps rather that the plotter nmea out. Larry Extremely intelligent life must exist in the universe. You can tell because they never tried to contact us. |
#4
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Geonav plotter & garmin 128 waypoints problem
"Glen Wiley Wilson" wrote in message ... Larry's deductions are correct. In NMEA mode, your Garmin is deaf. In RTCM it can hear differential GPS beacon data. In GRMN mode, it can upload and download waypoints, routes, etc, but it can't communicate with normal NMEA equipment. But on the garmin faqs page it says it can be done, and I remember using this with a yeoman plotter http://www.garmin.com/support/faqs/faq.jsp?faq=27 The autopilot can be driven from either the GPS or the plotter; whichever one has the waypoint is the one that generates the steering commands. But if I cannot upload waypoints to the gps, then I would be better getting the plotter to drive the autopilot, with perhaps a changeover switch in case the plotter failed. Glen Wilson See my NMEA Instrument Repeater software at http://www.worldwidewiley.com/3NMEA.shtml Looks pretty neat ... are you going to release this as shareware, open source or what ?? garry |
#5
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Geonav plotter & garmin 128 waypoints problem
On Sun, 17 Aug 2003 11:43:54 +0100, "garry crothers"
wrote: But if I cannot upload waypoints to the gps, then I would be better getting the plotter to drive the autopilot, with perhaps a changeover switch in case the plotter failed. There ya go! That's the best way to do it. I'm installing a rotary switch on my buddy's ketch. It will feed the autopilot from either the chart plotter in the Raymarine SL-72C radar/WAAS-GPS/gyro ...or....the Garmin 185 GPS...or....the Dell notebook computer running The Cap'n software...or....The yeoman glued upside down to the bottom of the chart table......at the flip of the switch in case its heavy weather. Unless the autopilot fails, we're probably gonna have steering...(c; Larry Extremely intelligent life must exist in the universe. You can tell because they never tried to contact us. |
#6
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Geonav plotter & garmin 128 waypoints problem
On Sun, 17 Aug 2003 11:33:41 +0100, "garry crothers"
wrote: Let's dump it all and tell the manufacturers we'll ONLY BUY PRODUCTS WITH USB INTERFACES from now on......STANDARDIZED! Sounds good to me, you lead the way and I'll follow We'll do it as soon as we can figure out how to get boaters to pay $100 for a USB cable at West Marine that Best Buy sells for $8..... Larry Extremely intelligent life must exist in the universe. You can tell because they never tried to contact us. |
#8
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Geonav plotter & garmin 128 waypoints problem
On Sun, 17 Aug 2003 18:37:50 GMT, "Glen Wiley Wilson"
wrote: That's very cool. My program can switch between the charting program on the PC and the GPS as the steering command source. If the PC dies, I have to unplug the GPS from the PC serial port and plug it into the serial port on my B&B NMEA interface. Not quite as slick. Although some might consider your rotary switch a single point of failure? Glen The switches I use are sealed rotary switches from www.mouser.com designed to be washed down in a factory environment. The only part that's exposed is the solder terminals which means nothing once the wires are soldered to them behind the panels. I don't use open switches in any marine application. Larry W4CSC Maybe we could get the power grid fixed if every politician regulating the power companies wasn't on their payrolls. |
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