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Old 06-12-2021, 07:08 AM   #6
Spear One
Retired Comm. Shooter
 
Join Date: Sep 2002
Location: Largo, Florida
Posts: 5,140
Re: WTB: Garmin 3210

If you can store the numbers on a micro SD card you can then upload them into the Seamarks program sold by Andren software co. The Seamarks program will then convert the numbers to the Garmin format and then you can reload onto a micro SD and then dump them back into the Garmin.
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