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Old 01-11-2017, 11:59 AM   #1
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Default Garmin networking checklist

Revamping my original electronics on a little bit better system....honestly have a huge box of stuff and making sure I have what I need/ understand how it all goes together.

Plan (2) Garmin 4208s / GSD 22 Sounder / GDL 30A XM box. Plan is to use one screen as sounder and one as GPS.......motor is a 2005 (non mnea compatible I believe)

Please correct me on statements below on configuration:

1) Garmin 4208 screen (sounder)
-transducer cable to GSD 22
-GSD 22 to 4208 via network ethernet cable
-do I need a power cable to the GSD 22 or will it pull power from 4208?

2) Garmin 4208 screen (GPS)
-GPS ant to ?
-XM antenna to 30A box
-30A box to 4208 via ethernet network cable
-Does 30A need power cable or will it pull from 4208?
-VHF DSC function to 4208 via ???

Thanks in advance....
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Old 01-11-2017, 03:32 PM   #2
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I just removed my GSD 22 and I'm pretty positive it had a power cable. Like a CanNet cable that runs to the terminal block.
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Old 01-11-2017, 03:42 PM   #3
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yes the gsd22 and the gdl need their own power.

the gps receiver connection to the 4208 depends on the gps receiver. some are nmea 0183, some are nmea2k. the n2k receiver will connect to a n2k network that needs its own power and connect to the n2k port of the 4208.

you also want a garmin ethernet cable between the 4208 units as well as connected via n2k, so that you can mix and match what you see on the screens, share waypoints, position, etc.
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Old 01-11-2017, 06:41 PM   #4
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Found the power cords that go from t block to both sounder boxes

I have a Garmin Ethernet cable to go between the two 4208s

My last electronics guy that did the un install cut the ends of both antenna cables.....I assume just need new coax ends?
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Old 01-12-2017, 08:09 AM   #5
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Quote:
Originally Posted by TheBandit View Post
My last electronics guy that did the un install cut the ends of both antenna cables.....I assume just need new coax ends?
the gdl30a does use an antenna w/a coax cable. I believe the connector is a bnc but not 100% from memory. you will need to install a new one...and install it correctly as this connection is important and if it is not done well you will have reception issues. the gdl30a is very old and I would confirm w/garmin and/or sirius-xm that it is still able to receive weather signals (?). I have no idea but would guess that it's a coin flip.

the 4208 doesn't really use an antenna but rather an active gps receiver. this is an important distinction because the cable on an active antenna is not coax and does not use a bnc connector. if the 'gps antenna' you have for the 4208 has a coax cable, it is not compatible w/the 4208. if it isn't coax, then it is either a nmea0183 receiver which will connect via small wires to the pigtail of the 4208 (more small wires). the color codes are in the manual; OR it is a nmea2k receiver that will need to be hooked into a nmea2k network. you will need to buy a field attachable micro c connector if it is a nmea2k antenna (because the end has been cut). if you post a picture of the underside of the 'antenna' then we will be able to tell you which you have.
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Old 01-13-2017, 06:45 AM   #6
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Quote:
Originally Posted by chainsaw42 View Post

the 4208 doesn't really use an antenna but rather an active gps receiver. this is an important distinction because the cable on an active antenna is not coax and does not use a bnc connector. if the 'gps antenna' you have for the 4208 has a coax cable, it is not compatible w/the 4208. if it isn't coax, then it is either a nmea0183 receiver which will connect via small wires to the pigtail of the 4208 (more small wires). the color codes are in the manual; OR it is a nmea2k receiver that will need to be hooked into a nmea2k network. you will need to buy a field attachable micro c connector if it is a nmea2k antenna (because the end has been cut). if you post a picture of the underside of the 'antenna' then we will be able to tell you which you have.
SO the antenna is the Garmin 17vhs antenna comes to an end with lots of small coloered wires. I also found a nmea 0183 cable in my box of stuff that would plug into the 4208 at the nmea port and then direct wire to the antenna per instructions.
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