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#1
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how to connect DSC radio to Garmin GPS ?
I have a new DSC VHF marine radio with a + & - input for a GPS in NMEA
format. I have my Garmin MAP76 outputting in Garmin format on RS232 to an older laptop running Mapsource on my boat as a chart plotter. I would like to get the required signal to the radio - any ideas or suggestions ? Thanks, Bob |
#2
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how to connect DSC radio to Garmin GPS ?
Bob wrote:
I have a new DSC VHF marine radio with a + & - input for a GPS in NMEA format. I have my Garmin MAP76 outputting in Garmin format on RS232 to an older laptop running Mapsource on my boat as a chart plotter. I would like to get the required signal to the radio - any ideas or suggestions ? Thanks, Bob I do not recall if your Mapsource software requires a data in Garmin format or not. If it does not, you can select a NEMA out on your Garmin GPSMAP76 and on your Mapsource software. Then you can do some cable surgery and make what amounts to a serial Tee connection. The other end of the Tee would connect to your radio. Generally you can get away with this since most serial devices don't drag down the 5 volt signal signficantly. NEMA offers a variety of information on postion, satellite info but does not have the provision to handle stored waypoints. The more I think about it the more I suspect NEMA may not be supported with your Mapsource software. If we assume that your Mapsource can only accept Garmin data, then things become more complicated. If you have a second serial port on your laptop, you can install a low level driver to convert serial data in a Garmin format to a NEMA format and output it on the second serial port. Several years ago I saw a freeware window95 program that would do conversion in real time but I do not know if it even exists anymore. |
#3
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how to connect DSC radio to Garmin GPS ?
I think you're out of luck, but you should ask Garmin - they were prompt and
helpful to me when I was trying to get my Garmin to talk with my Furuno radar. My MapSource (Version 6.3) says to be sure the device's transfer mode is set to Garmin. An option would be to use a handheld set to NMEA with a PC cable for the radio, and as a backup. For my radar, I bought Furuno's cable and put a DB9 connector on the end, to receive the DB9 connector from my Garmin. I use my GPS 12 in a mount on the instrument panel to feed the radar, since the PC cable has a 12 volt plug and I don't have to worry about draining the AA batteries all the time. I have an eTrex that I use as a backup and I have a PC cable for it, too, so I can connect it to the radar if necessary. "Lisa Collins" wrote in message ... Bob wrote: I have a new DSC VHF marine radio with a + & - input for a GPS in NMEA format. I have my Garmin MAP76 outputting in Garmin format on RS232 to an older laptop running Mapsource on my boat as a chart plotter. I would like to get the required signal to the radio - any ideas or suggestions ? Thanks, Bob I do not recall if your Mapsource software requires a data in Garmin format or not. If it does not, you can select a NEMA out on your Garmin GPSMAP76 and on your Mapsource software. Then you can do some cable surgery and make what amounts to a serial Tee connection. The other end of the Tee would connect to your radio. Generally you can get away with this since most serial devices don't drag down the 5 volt signal signficantly. NEMA offers a variety of information on postion, satellite info but does not have the provision to handle stored waypoints. The more I think about it the more I suspect NEMA may not be supported with your Mapsource software. If we assume that your Mapsource can only accept Garmin data, then things become more complicated. If you have a second serial port on your laptop, you can install a low level driver to convert serial data in a Garmin format to a NEMA format and output it on the second serial port. Several years ago I saw a freeware window95 program that would do conversion in real time but I do not know if it even exists anymore. |
#4
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how to connect DSC radio to Garmin GPS ?
What Lisa said originally. Forget the Mapsource bit. It has nothing to do
with the problem. Simply tee off the Data Out + , and Data Out - coming from the Garmin. These get connected to the VHF's Data In +, and Data In -, respectively. Make sure the Garmin protocol is set to NMEA out or In/Out . "Bob" wrote in message rs.com... I have a new DSC VHF marine radio with a + & - input for a GPS in NMEA format. I have my Garmin MAP76 outputting in Garmin format on RS232 to an older laptop running Mapsource on my boat as a chart plotter. I would like to get the required signal to the radio - any ideas or suggestions ? Thanks, Bob |
#5
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how to connect DSC radio to Garmin GPS ?
Max Lynn wrote:
What Lisa said originally. Forget the Mapsource bit. It has nothing to do with the problem. Simply tee off the Data Out + , and Data Out - coming from the Garmin. These get connected to the VHF's Data In +, and Data In -, respectively. Make sure the Garmin protocol is set to NMEA out or In/Out . "Bob" wrote in message rs.com... I have a new DSC VHF marine radio with a + & - input for a GPS in NMEA format. I have my Garmin MAP76 outputting in Garmin format on RS232 to an older laptop running Mapsource on my boat as a chart plotter. I would like to get the required signal to the radio - any ideas or suggestions ? Thanks, Bob If Mapsource requires a Garmin-Garmin setting and cannot be tweaked to accept NMEA, it will not work with NMEA, therefore the only solution in this case would be a second GPS, outputting to the DSC VHF. You could of course change you Mapsource software on the laptop to something better, such as Oziexplorer. Remove "nospam" from return address. |
#6
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how to connect DSC radio to Garmin GPS ?
MapSource is better.
"Dennis Pogson" wrote in message ... Max Lynn wrote: What Lisa said originally. Forget the Mapsource bit. It has nothing to do with the problem. Simply tee off the Data Out + , and Data Out - coming from the Garmin. These get connected to the VHF's Data In +, and Data In -, respectively. Make sure the Garmin protocol is set to NMEA out or In/Out . "Bob" wrote in message rs.com... I have a new DSC VHF marine radio with a + & - input for a GPS in NMEA format. I have my Garmin MAP76 outputting in Garmin format on RS232 to an older laptop running Mapsource on my boat as a chart plotter. I would like to get the required signal to the radio - any ideas or suggestions ? Thanks, Bob If Mapsource requires a Garmin-Garmin setting and cannot be tweaked to accept NMEA, it will not work with NMEA, therefore the only solution in this case would be a second GPS, outputting to the DSC VHF. You could of course change you Mapsource software on the laptop to something better, such as Oziexplorer. Remove "nospam" from return address. |
#7
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how to connect DSC radio to Garmin GPS ?
William G. Andersen wrote:
MapSource is better. Just because it's vector? I think not. "Dennis Pogson" wrote in message ... Max Lynn wrote: What Lisa said originally. Forget the Mapsource bit. It has nothing to do with the problem. Simply tee off the Data Out + , and Data Out - coming from the Garmin. These get connected to the VHF's Data In +, and Data In -, respectively. Make sure the Garmin protocol is set to NMEA out or In/Out . "Bob" wrote in message rs.com... I have a new DSC VHF marine radio with a + & - input for a GPS in NMEA format. I have my Garmin MAP76 outputting in Garmin format on RS232 to an older laptop running Mapsource on my boat as a chart plotter. I would like to get the required signal to the radio - any ideas or suggestions ? Thanks, Bob If Mapsource requires a Garmin-Garmin setting and cannot be tweaked to accept NMEA, it will not work with NMEA, therefore the only solution in this case would be a second GPS, outputting to the DSC VHF. You could of course change you Mapsource software on the laptop to something better, such as Oziexplorer. Remove "nospam" from return address. -- Remove "nospam" from return address. |
#8
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how to connect DSC radio to Garmin GPS ?
because it's so easy to use.
"Dennis Pogson" wrote in message ... William G. Andersen wrote: MapSource is better. Just because it's vector? I think not. "Dennis Pogson" wrote in message ... Max Lynn wrote: What Lisa said originally. Forget the Mapsource bit. It has nothing to do with the problem. Simply tee off the Data Out + , and Data Out - coming from the Garmin. These get connected to the VHF's Data In +, and Data In -, respectively. Make sure the Garmin protocol is set to NMEA out or In/Out . "Bob" wrote in message rs.com... I have a new DSC VHF marine radio with a + & - input for a GPS in NMEA format. I have my Garmin MAP76 outputting in Garmin format on RS232 to an older laptop running Mapsource on my boat as a chart plotter. I would like to get the required signal to the radio - any ideas or suggestions ? Thanks, Bob If Mapsource requires a Garmin-Garmin setting and cannot be tweaked to accept NMEA, it will not work with NMEA, therefore the only solution in this case would be a second GPS, outputting to the DSC VHF. You could of course change you Mapsource software on the laptop to something better, such as Oziexplorer. Remove "nospam" from return address. -- Remove "nospam" from return address. |
#9
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how to connect DSC radio to Garmin GPS ?
In article fm_Oc.8352$Xn.5399@fed1read05,
"William G. Andersen" wrote: I think you're out of luck, but you should ask Garmin - they were prompt and helpful to me when I was trying to get my Garmin to talk with my Furuno radar. My MapSource (Version 6.3) says to be sure the device's transfer mode is set to Garmin. An option would be to use a handheld set to NMEA with a PC cable for the radio, and as a backup. For my radar, I bought Furuno's cable and put a DB9 connector on the end, to receive the DB9 connector from my Garmin. I use my GPS 12 in a mount on the instrument panel to feed the radar, since the PC cable has a 12 volt plug and I don't have to worry about draining the AA batteries all the time. I have an eTrex that I use as a backup and I have a PC cable for it, too, so I can connect it to the radar if necessary. Another possibility to pursure would be, to see if the Mapsource software can "Output" a NEMA Datastream from one of the serial ports, and use that to drive the Radio. Some of the ChartPlotting packages can output NEMA to drive autopilots, ect, and you can customize the output datastream. Bruce in alaska who uses this approch for all kinds of things -- add a 2 before @ |
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