Hi fellas, I am a ham W1QJ and I am getting into APRS, I understand how it
works. My brother has a boat with a Garmin 2010 GPS unit and an Icom VHF
radio. Both of the manuals talk about DSC, but do not tell you how to hook it
up. I am assuming that it works similar to the amatuer APRS. The lat. long.
data gets fed from the GPS to the VHF radio and then the radio can beacon the
position of the boat. My question is this. Which wires on the Garmin 2010
give out the data that the VHF radio is looking for? The Icom VHF radio is
looking for "NEMA" data input, but when I called Garmin on the phone, they said
that the Garmin has their own data protocal. Is this a problem? If so then
what is the work around? Could anyone here that uses DSC and understands it,
please help me out. I am assuming that it is very much like "connected
packet"?? I may be wrong, but from what I read about it, it sounds like it.
Any help with a better understanding of Marine DSC and help hooking up the
Garmin to the Icom to get my brother going on DSC would be appreciated. You
can e-mail me direct please. Or I can come back here for responses. Many
thanks in advance to anyone who can help me. 73 Louie W1QJ

Hi the

I'm afraid that I can not give the the tech specs on this, but....

I did see a boat recently that had a newly installed Garmin 2010 on it. He
had it connected to his VHF for DSC.

I'm afraid that I do not know how it is hooked up, but at least now you know
it will work.

Best of luck!

Jim Pook
Tahsis, BC
www.jimsfishing.com



"Gudguyham" wrote in message
...
Hi fellas, I am a ham W1QJ and I am getting into APRS, I understand how it
works. My brother has a boat with a Garmin 2010 GPS unit and an Icom VHF
radio. Both of the manuals talk about DSC, but do not tell you how to
hook it
up. I am assuming that it works similar to the amatuer APRS. The lat.
long.
data gets fed from the GPS to the VHF radio and then the radio can beacon
the
position of the boat. My question is this. Which wires on the Garmin
2010
give out the data that the VHF radio is looking for? The Icom VHF radio
is
looking for "NEMA" data input, but when I called Garmin on the phone, they
said
that the Garmin has their own data protocal. Is this a problem? If so
then
what is the work around? Could anyone here that uses DSC and understands
it,
please help me out. I am assuming that it is very much like "connected
packet"?? I may be wrong, but from what I read about it, it sounds like
it.
Any help with a better understanding of Marine DSC and help hooking up the
Garmin to the Icom to get my brother going on DSC would be appreciated.
You
can e-mail me direct please. Or I can come back here for responses. Many
thanks in advance to anyone who can help me. 73 Louie W1QJ

You should be able to select the data output format at the Garmin. You can
pick NEMA, and pick the latest version (2.0?). Then you should hook the data
out from the garmin to the data in on the VHF. That will probably do it, but
you may have to hook another wire from the radio to electrical ground.

--


Keith
__
My wife has a slight impediment in her speech. Every now and then she stops
to breathe. -Jimmy Durante
"Gudguyham" wrote in message
...
Hi fellas, I am a ham W1QJ and I am getting into APRS, I understand how it
works. My brother has a boat with a Garmin 2010 GPS unit and an Icom VHF
radio. Both of the manuals talk about DSC, but do not tell you how to
hook it
up. I am assuming that it works similar to the amatuer APRS. The lat.
long.
data gets fed from the GPS to the VHF radio and then the radio can beacon
the
position of the boat. My question is this. Which wires on the Garmin
2010
give out the data that the VHF radio is looking for? The Icom VHF radio
is
looking for "NEMA" data input, but when I called Garmin on the phone, they
said
that the Garmin has their own data protocal. Is this a problem? If so
then
what is the work around? Could anyone here that uses DSC and understands
it,
please help me out. I am assuming that it is very much like "connected
packet"?? I may be wrong, but from what I read about it, it sounds like
it.
Any help with a better understanding of Marine DSC and help hooking up the
Garmin to the Icom to get my brother going on DSC would be appreciated.
You
can e-mail me direct please. Or I can come back here for responses. Many
thanks in advance to anyone who can help me. 73 Louie W1QJ

Keith is right.
What kind of dope did you speak with at Garmin?
If you couldn't switch to NMEA the plotter would not work with the majority
of autopilots and that would be a big no-no. In one of the menus there
should be a System setup option to chose data output configuration.
I would have thought the manual for the radio would show how to input the
GPS data since this is supposed to be a big selling item for these units.

"Gudguyham" wrote in message
...
Hi fellas, I am a ham W1QJ and I am getting into APRS, I understand how it
works. My brother has a boat with a Garmin 2010 GPS unit and an Icom VHF
radio. Both of the manuals talk about DSC, but do not tell you how to
hook it
up. I am assuming that it works similar to the amatuer APRS. The lat.
long.
data gets fed from the GPS to the VHF radio and then the radio can beacon
the
position of the boat. My question is this. Which wires on the Garmin
2010
give out the data that the VHF radio is looking for? The Icom VHF radio
is
looking for "NEMA" data input, but when I called Garmin on the phone, they
said
that the Garmin has their own data protocal. Is this a problem? If so
then
what is the work around? Could anyone here that uses DSC and understands
it,
please help me out. I am assuming that it is very much like "connected
packet"?? I may be wrong, but from what I read about it, it sounds like
it.
Any help with a better understanding of Marine DSC and help hooking up the
Garmin to the Icom to get my brother going on DSC would be appreciated.
You
can e-mail me direct please. Or I can come back here for responses. Many
thanks in advance to anyone who can help me. 73 Louie W1QJ

Garmin usually uses a blue wire for Garmin/NEMA + output and black for
ground and DC negative. Some of the newer one have a brown wire for
Garmin/NMEA -. In the Garmin software menus you will find a choice of Garmin
(default) or NMEA. Select the NMEA with the highest version numbers if the
menu gives you a choice. NEMA 0183 version is above 3 now for some
application but any with 2.0 or better should work.
If anyone is trying to get a newer Lowrance unit interfaced with NEMA 2000,
the GPS has its own 12 VDC connection for the NMEA 2000 to work. Got burned
on that earlier this week.
Doug K7ABX

"Gordon Wedman" wrote in message
news:5%Jtc.27519$g71.4610@clgrps13...
Keith is right.
What kind of dope did you speak with at Garmin?
If you couldn't switch to NMEA the plotter would not work with the
majority
of autopilots and that would be a big no-no. In one of the menus there
should be a System setup option to chose data output configuration.
I would have thought the manual for the radio would show how to input the
GPS data since this is supposed to be a big selling item for these units.

"Gudguyham" wrote in message
...
Hi fellas, I am a ham W1QJ and I am getting into APRS, I understand how
it
works. My brother has a boat with a Garmin 2010 GPS unit and an Icom
VHF
radio. Both of the manuals talk about DSC, but do not tell you how to
hook it
up. I am assuming that it works similar to the amatuer APRS. The lat.
long.
data gets fed from the GPS to the VHF radio and then the radio can
beacon
the
position of the boat. My question is this. Which wires on the Garmin
2010
give out the data that the VHF radio is looking for? The Icom VHF radio
is
looking for "NEMA" data input, but when I called Garmin on the phone,
they
said
that the Garmin has their own data protocal. Is this a problem? If so
then
what is the work around? Could anyone here that uses DSC and
understands
it,
please help me out. I am assuming that it is very much like "connected
packet"?? I may be wrong, but from what I read about it, it sounds like
it.
Any help with a better understanding of Marine DSC and help hooking up
the
Garmin to the Icom to get my brother going on DSC would be appreciated.
You
can e-mail me direct please. Or I can come back here for responses.
Many
thanks in advance to anyone who can help me. 73 Louie W1QJ

Statement from Garmin website :-

Interfaces: 3 data ports allow for NMEA 0183 and proprietary Garmin

If you have a look at the Installation Guide, link below, on page 6 is the
wiring diagram you need.

http://www.garmin.com/manuals/47_GPS...ationGuide.pdf

(Gudguyham) wrote in
:

Hi fellas, I am a ham W1QJ and I am getting into APRS, I understand
how it works. My brother has a boat with a Garmin 2010 GPS unit and
an Icom VHF radio. Both of the manuals talk about DSC, but do not
tell you how to hook it up. I am assuming that it works similar to
the amatuer APRS. The lat. long. data gets fed from the GPS to the
VHF radio and then the radio can beacon the position of the boat. My
question is this. Which wires on the Garmin 2010 give out the data
that the VHF radio is looking for? The Icom VHF radio is looking for
"NEMA" data input, but when I called Garmin on the phone, they said
that the Garmin has their own data protocal. Is this a problem? If
so then what is the work around? Could anyone here that uses DSC and
understands it, please help me out. I am assuming that it is very
much like "connected packet"?? I may be wrong, but from what I read
about it, it sounds like it. Any help with a better understanding of
Marine DSC and help hooking up the Garmin to the Icom to get my
brother going on DSC would be appreciated. You can e-mail me direct
please. Or I can come back here for responses. Many thanks in advance
to anyone who can help me. 73 Louie W1QJ


Louis, hi. Larry, W4CSC, here. I was an APRS VHF node for years and even
helped WB4APR fix some Navy APRS transmitters on Academy yachts that ported
in Charleston get back online on the Navy system.

DSC doesn't "beacon" like APRS. It only transmits when you call someone's
MMSI unique number to digitally call them...or when you declare and
emergency by pressing the distress button for X seconds.

Look at the diagram of the installation manual:
http://www.garmin.com/manuals/47_GPS...lationGuide.pd
f
On diagram 2 note port 1 hooked to a computer's serial port and port 2
hooked to other devices (gray and violet wires of the cabling). Looks like
port 2 is the NMEA port, if you have NMEA data turned on.

http://www.garmin.com/manuals/41_OwnersManual.pdf
On page 76 of this owner's manual, you'll see the NMEA setup from the
Communications Tab of the main menu system. Looks like you'll need to turn
NMEA data on out of port 2 from this menu with the instructions provided.
That will get you NMEA data out and in on the gray and violet wires from
port 2. Garmin uses ground, damn them, instead of the balanced NMEA + and
- through an optoisolator so it will screw all your radios with serial data
noises. Sorry....

Just hook Port 2 output to the Icom's NMEA Input (A or +) and the Icom's
data output to the Garmin Port 2 input (A or +) wires. Ground the B or -
NMEA connections and you're in business....

You'll know you have NMEA data into the Icom because Lat/Long and the
correct time will show up on the Icom's display. I'm using Icom M802 HF
adn M602 VHF radios aboard Lionheart with great success. M602 is a
beautiful overkill of a VHF rig. The M502 is more practical but my captain
said the 602 matched the HF panel much better. Who am I to argue with the
captain's checkbook...(c;

73, Larry W4CSC
Chief Engineer
S/V Lionheart
WDB6254 MMSI 366920680
Buzz us on Channel 70 and we'll do lunch....(c;