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post #3 of Old 12-03-2013 Thread Starter
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Re: Christmas GPS $600.00 Budget

Do I have to have a GPS antenna and a thru hull transducer to make these things work?
My Garmin 215 I use now is outdated but it has a white mushroom antenna mounted on hte back of the boat. How does it get the depth reading? it does have a memeory card in the unit. Do I need to update the card or do I have to buy a new card?
Can I update the old card and use it in a new unit?
Sorry for all the questions.
ltgoshen is offline  
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