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Nikon DSLR Cameras
D5300
D5300 GPS problem
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<blockquote data-quote="d.kilshtein" data-source="post: 304681" data-attributes="member: 24950"><p>Ok, some update.</p><p> </p><p>I went out to a totally open field and after a few moments I got a FIX.</p><p>I went from location A to location B in certain way (not just in a straight line).</p><p> </p><p>When I got back home and looked at the geo tag on the photos I thought the GPS location was not accurate but when I inspected the geo tags closely and I saw that the location wasn't inaccurate. The location was exactly where I was but with a delay.</p><p> </p><p>Here is the strange thing that looks like a bug in the firmware logic (I have a LOT of experience writing software for GPS management):</p><p>When I got to location B I took a few photos and the few first photos had location A in them and more recent photos had location B. when I went back, from B to A, and I took a few more photos at location A, the GPS tag showed location B. it seem the geo tag is written to the picture not from the last reading from the GPS sensor but from a pre stored location in memory (i.e. "lastGoodFix"). It also seems that the refresh rate of the actual GPS readings is very low (probably to save power).</p><p> </p><p>Here is another thing that may point to another problem. When I was at location B some of the pictures appeared as location A (or on the way from location A to B).</p><p>While at location B my photos tags appeared as AAAABBBAABBB.</p><p>The first four A are probably the result of a slow update as I mentioned earlier but the two A in the middle look like it's another bug in the firmware logic (something to have with the storing the last fix position). Maybe the GPS signal was low the tag was written from a pre stored data…</p><p> </p><p>Anyway, since both issues look like a bug, there is a hope they will be fixed in the next firmware update.</p></blockquote><p></p>
[QUOTE="d.kilshtein, post: 304681, member: 24950"] Ok, some update. I went out to a totally open field and after a few moments I got a FIX. I went from location A to location B in certain way (not just in a straight line). When I got back home and looked at the geo tag on the photos I thought the GPS location was not accurate but when I inspected the geo tags closely and I saw that the location wasn't inaccurate. The location was exactly where I was but with a delay. Here is the strange thing that looks like a bug in the firmware logic (I have a LOT of experience writing software for GPS management): When I got to location B I took a few photos and the few first photos had location A in them and more recent photos had location B. when I went back, from B to A, and I took a few more photos at location A, the GPS tag showed location B. it seem the geo tag is written to the picture not from the last reading from the GPS sensor but from a pre stored location in memory (i.e. "lastGoodFix"). It also seems that the refresh rate of the actual GPS readings is very low (probably to save power). Here is another thing that may point to another problem. When I was at location B some of the pictures appeared as location A (or on the way from location A to B). While at location B my photos tags appeared as AAAABBBAABBB. The first four A are probably the result of a slow update as I mentioned earlier but the two A in the middle look like it's another bug in the firmware logic (something to have with the storing the last fix position). Maybe the GPS signal was low the tag was written from a pre stored data… Anyway, since both issues look like a bug, there is a hope they will be fixed in the next firmware update. [/QUOTE]
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D5300 GPS problem
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