"William Andersen" wrote in message
news4kPf.2517$3k1.1227@dukeread03...
Both the Garmin and the VHF have two ports.
The VHF has one to receive GPS info from the Garmin, which is displayed on
the VHF and transmitted with DSC, and another to send received info (from
a
DSC reception) to the Garmin so that it will be displayed on the Garmin.


"Dennis Pogson" wrote in message
...
I have the config set the way the Garmin tech. told me on COMM2 .

What is this? Didn't know VHS had com ports?

But in this case we're talking about COM2 on the Garmin....

Meindert

The Garmin instruction manual refers to them as Ports 1 and 2. One sends
data to the VHF, the other receives data from the VHF and plots it.

"Meindert Sprang" wrote in message
...
"William Andersen" wrote in message
news4kPf.2517$3k1.1227@dukeread03...
Both the Garmin and the VHF have two ports.
The VHF has one to receive GPS info from the Garmin, which is displayed
on
the VHF and transmitted with DSC, and another to send received info (from
a
DSC reception) to the Garmin so that it will be displayed on the Garmin.


"Dennis Pogson" wrote in message
...
I have the config set the way the Garmin tech. told me on COMM2 .

What is this? Didn't know VHS had com ports?

But in this case we're talking about COM2 on the Garmin....

Meindert

"luc" wrote in message
oups.com...
getting back to Speckfisher's original post, is there a way to test
NMEA out/in with a meter, or do you need a laptop/software to do so?

With a meter you'll only see a fluctating voltage. It's easy to test with a
laptop and a serial cable. Start a terminal program, set it to 4800 baud, 8
databits, 1 stopbit, no parity, no flow control. Now you can tap in on every
NMEA signal. Let the laptop run on it's battery and you don't need galvanic
isolation for this test. Pin 5 on the 9-pin connector is ground, pin 2 is
the input to the laptop. Always connect ground first....

Meindert

what is a terminal program? remember, you are dealing with someone who
knows NOTHING!

thanks for great information. Some day, I may actually get it!

Luc

On 7 Mar 2006 13:34:41 -0800, "luc" wrote:

getting back to Speckfisher's original post, is there a way to test
NMEA out/in with a meter, or do you need a laptop/software to do so?

You can see if an NMEA device is outputting data using a voltmeter. I
prefer an analog meter, but DVMs can also work, unless they are very
slow reading.

Set the meter to read 5 volts, and, if there is data present, you
should see it wiggling - with the voltage varying around 2 - 3 volts.
The data line will acutally switch rapidly between 0 and +5 volts, but
the meter won't be able to follow it.




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

Luc,

Your laptop may have a treminal program installed already, but that may
not be the easiest solution.

You have two easy choices;
GPSUtility at http://www.gpsu.co.uk/
or
http://www.gpsu.co.uk/
both have real good NMEA input screens, but you have to get one (both
can be free), install it, and then find the NMEA input screen.

Matt Colie

luc wrote:
what is a terminal program? remember, you are dealing with someone who
knows NOTHING!

thanks for great information. Some day, I may actually get it!

Luc

Tailgunner wrote in news:2v-
:

I have the exact same problem and have found no solution.


I just can't stand to stay out of this any longer, remembering the grief
I went through with Icoms and Raymarines and Garmins on
Lionheart....sorry....

I downloaded the Icom M422 manual and note on page 15 it, very casually,
mentions you need NMEA 0183 version 2.0 or 3.01 (and no others?) data
from your GPS, neither of which, of course, old GPS receivers will
generate with their version 1.0 or 1.1 NMEA 0183 generators.
No mention is made of what baud rate or bit stream or stop bit it can
read, so we'll assume 4800 baud 8-N-1 is compatible.....for now.

Now, over on the Garmin 182, now considered "obsolete" by Garmin and
their NMEA buddies, on page 98 they want to connect port 2, the green
wire, to the Icom's NMEA input lead some idiot colored RED just so
someone would try to use it for POWER IN, red being the color of every
other power lead in the boat. Idiots! So, Garmin's green wire to Icom's
red wire, and of course everything grounded together, you hope, so let's
connect Garmin's black "ground" wire to Icom's negative power lead, just
in case the Japanese have reverted back to their love of positive-ground
devices...something they just have never gotten over. Lots of Jap stuff
still has the case ground isolated from negative for "home use" in Japan.
This, in itself, might stop the data from showing up...

On page 73, it says the Garmin supports "standard NMEA 0183 data", making
no mention of what VERSION this data is
Oops...page 99. The Garmin is NMEA Version 3.0, probably close enough to
the Icom's 3.01 to get the data.

You NMEA subscribers...what's the differences between 3.0 and 3.01?

Ok....question.....HAVE YOU PUT IN YOUR MMSI INTO THE ICOM 422 FOR YOUR
BOAT? I believe you'll find DSC is DISABLED until a valid MMSI is
programmed in FIRST to the unit, successfully.

Let's start on pg 13 of the Icom manual and program in your MMSI,
CAREFULLY AS YOU ONLY GET TWO SHOTS AT IT! If you lock the unit screwing
around entering bogus MMSIs, the unit must be returned to Icom to reset
the processor before it will accept any more MMSI numbers, rendering it
useless to try to resell to another boater...another NMEA member feature
to maximize profits. With your MMSI in it...the radio becomes useless to
anyone else.

If you don't have an MMSI, don't go any further until you get one from
Boat/US or off your ship license from FCC....and program it into the
M422.

Ok, MMSI is programmed in, Garmin is on and locked to the birds, what do
you see on the Icom display? Is the little GPS sign blinking or solid?
Blinking means GPS data IS being received, but is invalid, according to
page 15, bottom right column of the Icom manual. Garmin puts out 3 of
the 4 sentences the Icom is looking for RMC, GGA, GLL. It should have
picked RMC first, no problem. No go?......

Hmm....Let's toss caution to the wind and connect the Icom's red NMEA
input wire to the Garmin port 1 green output wire and try it. Set the
Garmin port 1 to NMEA IN/OUT. Maybe port 2 is "bad", or the cable is
screwed. Won't hurt to look at the other port. Icom respond to port 1?

Although the Garmin's manual is written for 6-year-olds and makes no
mention of changing the NMEA output baud rate, I think you can on the
advanced NMEA page of the System tab. Try switching its NMEA output to
1200 baud and see if the Icom can see that, too.

Well? Let us know what you find out and if anything we've all said did
anyone any good.....thanks.

"luc" wrote in news:1141775179.676589.149410
@i39g2000cwa.googlegroups.com:

what is a terminal program? remember, you are dealing with someone who
knows NOTHING!

thanks for great information. Some day, I may actually get it!

Luc


If you have a new computer, there won't be any serial port on it to play
with. USB has replaced old RS-232 and 422 ports on most all computers,
now, thank you manufacturers.

If you do have a serial port, a 9-pin serial port, you can hook the
Garmin to it by hooking the port 2 Garmin (green wire) to the serial
port's data input on pin 2 (pin 3 on the 25 pin old USB connector). The
pinout of serial RS-232 (and other info) is great on:
http://www.arcelect.com/rs232.htm

You can also buy a 9-pin serial port to USB converter cable for $50 from:
http://www.etronics.com/product.asp?...00&sbvname=293
or other places on the net. This is a way to get the archaic NMEA system
hooked to a new laptop computer with only USB ports on it so the nav
software will work with it.

Ok, Garmin green wire is hooked to pin 2 of the 9-pin serial port, Garmin
ground's black wire is hooked to pin 5 of the 9-pin serial port as shown
in the webpage's great picture. Now we need a "terminal program" to put
it on the screen for us.....

In Win XP click START - PROGRAMS - ACCESSORIES - COMMUNICATIONS and click
up HYPERTERM, Microsoft's dumbest dumb terminal program. Ignore it
asking you to make it the telnet program it wants to be, click NO. Then,
ignore it asking you to give it a name for this connection, click the
popup window's X to close it.

Click FILE at the top of Hyperterminal, then PROPERTIES to bring up the
New connection properties window. The Connect To tab is on top. Click
the arrow on the right side of line CONNECT USING and pick the com port
you're using. I only have COM3 on my Emachines mainframe. Ok, the other
stuff for dialup modems greys out and now click CONFIGURE button to bring
up the port settings page. Micro$not's system is too stupid to sync on
any com port speed, so you have to pick it. Pick 4800 Bits per second, 8
data bits, NONE parity, 1 stop bit and Flow control set to NONE so
Hyperterm ignores normal serial port flow control connections stupid NMEA
doesn't support. Click APPLY then OK. Click OK, again to close the
original popup window and at the bottom of the main Hyperterminal window
you should see:
Disconnected....Auto detect....4800 8-N-1...and some greyed out stuff.
If it says this, the screen will fill with NMEA sentences very rapidly if
the Garmin is talking to it. If it's working, click FILE then SAVE AS
and give it a name like GARMIN TEST PORT and a filename to save this
configuration to disk so you can just click it up next time you want to
look. Hyperterm is now listening to the COM port and typing whatever it
hears, even gibberish or binary gibberish or Garmin gibberish to anything
connected to it...at 4800 baud.

You now are using DOS 1.0's dumb terminal program from 1981...(c;

If you REALLY wanna see Hyperterm go crazy, pick one of the USB ports
something fast is connected to, like your USB mouse or webcam! It's all
gibberish...(c;

To give the grandchildren something to do, hook it to the USB keyboard
port so they can have type and read practice....

Did that help? I should be in tech support!...(c;

luc wrote:
what is a terminal program? remember, you are dealing with someone who
knows NOTHING!

thanks for great information. Some day, I may actually get it!


Hyperterminal is included with Windows and will work. Tera Term is a
better program and is a freeware.

Jack

--
Jack Erbes in Ellsworth, Maine, USA - jackerbes at adelphia dot net
(also receiving email at jacker at midmaine.com)

Hi,
Sounds like you are not making correct connections from Garmin to VHF
radio. This is a two wire connection, Garmin NMEA out and ground.
What is needed is to have Garmin interface set to deliver NMEA out via
its' cofiguration menu. Then all that is needed is two wires from
Garmin to VHF : These two wires should be within a screened cable
between the units.

1 NMEA out wire (probably blue) Check Garmin manual!! and
2 Garmin ground (probably black)
and to connect these two wires to VHF NMEA connection.
If correctly wired the position will appear on VHF as soon as Garmin
finds its position.