Marine Electronics Forum - Garmin GSD20 or 21

THE HULL TRUTH is the world's largest FREE network for the discussion of Boating & Fishing. Whether you're researching a new boat, or are a seasoned Captain, you'll find The Hull Truth Boating & Fishing Message Forum contains a wealth of information from Boaters and Sportfishermen around the world.

View Full Version : Garmin GSD20 or 21

puff tentacle
03-24-2012, 03:01 PM
I purchased a boat that has a Garmin 2006C but was told I need a GSD 20 to be able to get depth contours. Is this accurate info? and if so I am now looking to buy one if someone has one they would like sell.

03-24-2012, 05:19 PM
Since Garmin just introduced the new GSD 24 I'd bet you'd have no problem buying someones GSD 22.

03-24-2012, 05:23 PM
Verify compatibility. Lot o gsd22 on here.

03-24-2012, 05:28 PM
Correct, the GSD20 was what these units used.

Here is the Manual for the 2006C

03-25-2012, 05:12 AM
I have a 20 if youre interested.

puff tentacle
03-25-2012, 08:07 AM
PM sent

03-25-2012, 03:17 PM
Pm returned

White Grady
07-06-2012, 11:30 AM
You may have bought one already but if not, I have an unused one in original box, if interested.

Search Engine Friendly URLs by vBSEO 3.2.0