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GPS--how useful?
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<blockquote data-quote="SilentShooter" data-source="post: 786851" data-attributes="member: 13434"><p>I am going on way to many hours with out sleep thanks to overseas clients. So I did get my numbers off a little. </p><p></p><p>The Lowrance units have a 5Hz GPS in them that will update 5 time per second.</p><p>My race unit which is a $700 gps unit on its own does 10hz (and can be upgraded to 20hz)</p><p>the 10 & 20hz units are great for closed course are tracks where you want to plot your lines with your data log to see where you are losing or gaining speed and so on. </p><p></p><p>5hz basically means that at 60mph where you are doing 1 mile every minute your gps is updating its location 300 times within that 1 mile stretch. </p><p></p><p></p><p>Most commercial GPS you find like the bluetooth units are around 1hz if that. Many do not even spec the refresh and many that do post a theoretical number.</p></blockquote><p></p>
[QUOTE="SilentShooter, post: 786851, member: 13434"] I am going on way to many hours with out sleep thanks to overseas clients. So I did get my numbers off a little. The Lowrance units have a 5Hz GPS in them that will update 5 time per second. My race unit which is a $700 gps unit on its own does 10hz (and can be upgraded to 20hz) the 10 & 20hz units are great for closed course are tracks where you want to plot your lines with your data log to see where you are losing or gaining speed and so on. 5hz basically means that at 60mph where you are doing 1 mile every minute your gps is updating its location 300 times within that 1 mile stretch. Most commercial GPS you find like the bluetooth units are around 1hz if that. Many do not even spec the refresh and many that do post a theoretical number. [/QUOTE]
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