adamr Posted April 11, 2009 Share Posted April 11, 2009 does anybody know the difference? Quote Link to comment Share on other sites More sharing options...
MinnesotaBoatman Posted April 11, 2009 Share Posted April 11, 2009 As I recall, doesn't the 522 have an internal GPS antenna? Quote Link to comment Share on other sites More sharing options...
Newguy06 Posted April 11, 2009 Share Posted April 11, 2009 2........ Sorry had to say it Quote Link to comment Share on other sites More sharing options...
Bob Schroden Posted April 11, 2009 Share Posted April 11, 2009 internal and external antenna is the only difference Quote Link to comment Share on other sites More sharing options...
wheelerboy920 Posted April 11, 2009 Share Posted April 11, 2009 the 520 has external and the 522 has internal i know because i have one of each on my boat and i love them Quote Link to comment Share on other sites More sharing options...
TrophyEyes Posted April 11, 2009 Share Posted April 11, 2009 I got the 520c because at the time they were having some issues still with the internal antena. Quote Link to comment Share on other sites More sharing options...
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