SD Cards for Humminbird
I finally bit the bullet. Snow plowing was very good to me this year. I decided it was time to upgrade my sonar unit. Time to go from the Humminbird Piranaha Max 220 and Lowrance etrac GPS to something better. Bought me a Humminbird 899 HD SI unit today.
So far all I have done is read about 50 of the 143 pages of the manual. They keep referring to a SD Card. What is the biggest card I can use (GB)? I want to buy the Lakemaster Autochart program and will create my own maps. From what I understand I need to transfer the data from the sonar unit to the PC via the SD Card. How many GB SD Card should I have? When it comes to bit's, I don't comprehend size. How much information can be stored on a 16GB card? Can someone put it in perspective for me? Office Max is selling 16GB for $15 or so. Is 8 GB big enough, what about 32GB? What will the HB support?
I also need a SD card to transfer software updates, how big are those updates? 1GB, 2GB, 8GB? How many cards should I have?
They also talk about saving all your waypoints, routes, etc to a SD Card so you don't lose them. How big of a SD card do I need for that?
Along the same lines, whats the difference between MMC and SD? Which is better?
Is there a difference in data transfer rates? Do SD Cards have speed ratings?
Lots of questions.
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