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#31
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On Thu, 26 Aug 2004 11:24:22 GMT, "Joseph Meehan"
wrote: Digital Photo wrote: I want to use a GPS to record the location where I took a picture. Do any of you know of one that records the location, and time when the waypoint is marked? I had to go check, but my Magellan GPS 315 does record the date and time for waypoints. It makes sense since it has to know the exact date and time to determine the location. It is not on all the displays however. I had to look to find it. I have found some interesting uses for it. For example my girlfriend is into genealogy and I am able to not only find small graveyards on old maps that are now in the back 40 of some farmer's fields, but I am able to then mark the exact spot of a specific stone so the location can be found later. The time and date was has not been all that important, but now, I know I can mark and photograph a item and not bother making up a name or writing down information at that time because, I can figure it out later by using the time on the GPS and Photo. That would indeed be handy. I am going to have to see if I can find such info in mine. The hand held one is a garmin 48. I don't remember seeing time and date when I look for waypoints in it. Rodney Myrvaagnes NYC We have achieved faith-based science, faith-based economics, faith-based law enforcement, and faith-based missile defense. What's next? Faith-based air traffic control? |
#32
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On Thu, 26 Aug 2004 11:24:22 GMT, "Joseph Meehan"
wrote: Digital Photo wrote: I want to use a GPS to record the location where I took a picture. Do any of you know of one that records the location, and time when the waypoint is marked? I had to go check, but my Magellan GPS 315 does record the date and time for waypoints. It makes sense since it has to know the exact date and time to determine the location. It is not on all the displays however. I had to look to find it. I have found some interesting uses for it. For example my girlfriend is into genealogy and I am able to not only find small graveyards on old maps that are now in the back 40 of some farmer's fields, but I am able to then mark the exact spot of a specific stone so the location can be found later. The time and date was has not been all that important, but now, I know I can mark and photograph a item and not bother making up a name or writing down information at that time because, I can figure it out later by using the time on the GPS and Photo. That would indeed be handy. I am going to have to see if I can find such info in mine. The hand held one is a garmin 48. I don't remember seeing time and date when I look for waypoints in it. Rodney Myrvaagnes NYC We have achieved faith-based science, faith-based economics, faith-based law enforcement, and faith-based missile defense. What's next? Faith-based air traffic control? |
#33
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On Thu, 26 Aug 2004 17:47:12 GMT, "Arty Facting"
wrote: Hi I don't know if you know so I'll mention it anyway Most GPS units have a measurement accuracy or inaccuracy. It would be fine if it was consistent day-in & day-out, but it is not It varies with signal and satellite availability and also with weather conditions. The reason I mention this is because you may return to bang the same co-ords as on the GPS and be up to 30 yards from what you wanted to find. That being said & writ GPS units are mega-phun! Before WAAS and while selective availability was in effect, it could wander as far as 400 feet. However, in recent years I have found about 2 meters to be the practical limit. I check when tied up in the marina slip occasionally. There is no way you could come back to the wrong gravestone in an ordinary cemetary. Rodney Myrvaagnes NYC We have achieved faith-based science, faith-based economics, faith-based law enforcement, and faith-based missile defense. What's next? Faith-based air traffic control? |
#34
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On Thu, 26 Aug 2004 17:47:12 GMT, "Arty Facting"
wrote: Hi I don't know if you know so I'll mention it anyway Most GPS units have a measurement accuracy or inaccuracy. It would be fine if it was consistent day-in & day-out, but it is not It varies with signal and satellite availability and also with weather conditions. The reason I mention this is because you may return to bang the same co-ords as on the GPS and be up to 30 yards from what you wanted to find. That being said & writ GPS units are mega-phun! Before WAAS and while selective availability was in effect, it could wander as far as 400 feet. However, in recent years I have found about 2 meters to be the practical limit. I check when tied up in the marina slip occasionally. There is no way you could come back to the wrong gravestone in an ordinary cemetary. Rodney Myrvaagnes NYC We have achieved faith-based science, faith-based economics, faith-based law enforcement, and faith-based missile defense. What's next? Faith-based air traffic control? |
#35
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That really is cool
Arty "Ryan Robbins" wrote in message news:PTqXc.10246$Ff2.4099@trndny06... "Arty Facting" wrote in message ... Now a combo GPS & camera? Sheesh - that is a thought! The Kodak DCS Pro 14N allows users to plug a GPS receiver into the camera for saving the coordinates to file headers with other EXIF data. |
#36
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That really is cool
Arty "Ryan Robbins" wrote in message news:PTqXc.10246$Ff2.4099@trndny06... "Arty Facting" wrote in message ... Now a combo GPS & camera? Sheesh - that is a thought! The Kodak DCS Pro 14N allows users to plug a GPS receiver into the camera for saving the coordinates to file headers with other EXIF data. |
#37
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There is an interesting test that can be done with some units to visualise
variabilities The test is even better if an alternative power supply is rigged to the unit leave the unit in one spot - don't move it, not even an inch. Then let it run for as long as you can. A couple of hours or even overnight Then look at the track it has traced Ideally all the points should cluster around a single co-ord Chances are there will be a fair bit of movement as seen in the tracks recorded and displayed and this, remember, is for a stationary unit I mention this merely to retain some sense of rationality and proportionality as I have met people that are under the impression that there are no such things as error bounds. Artio (formerly das Bagal or even Bagal) "Rodney Myrvaagnes" wrote in message ... On Thu, 26 Aug 2004 17:47:12 GMT, "Arty Facting" wrote: Hi I don't know if you know so I'll mention it anyway Most GPS units have a measurement accuracy or inaccuracy. It would be fine if it was consistent day-in & day-out, but it is not It varies with signal and satellite availability and also with weather conditions. The reason I mention this is because you may return to bang the same co-ords as on the GPS and be up to 30 yards from what you wanted to find. That being said & writ GPS units are mega-phun! Before WAAS and while selective availability was in effect, it could wander as far as 400 feet. However, in recent years I have found about 2 meters to be the practical limit. I check when tied up in the marina slip occasionally. There is no way you could come back to the wrong gravestone in an ordinary cemetary. Rodney Myrvaagnes NYC We have achieved faith-based science, faith-based economics, faith-based law enforcement, and faith-based missile defense. What's next? Faith-based air traffic control? |
#38
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There is an interesting test that can be done with some units to visualise
variabilities The test is even better if an alternative power supply is rigged to the unit leave the unit in one spot - don't move it, not even an inch. Then let it run for as long as you can. A couple of hours or even overnight Then look at the track it has traced Ideally all the points should cluster around a single co-ord Chances are there will be a fair bit of movement as seen in the tracks recorded and displayed and this, remember, is for a stationary unit I mention this merely to retain some sense of rationality and proportionality as I have met people that are under the impression that there are no such things as error bounds. Artio (formerly das Bagal or even Bagal) "Rodney Myrvaagnes" wrote in message ... On Thu, 26 Aug 2004 17:47:12 GMT, "Arty Facting" wrote: Hi I don't know if you know so I'll mention it anyway Most GPS units have a measurement accuracy or inaccuracy. It would be fine if it was consistent day-in & day-out, but it is not It varies with signal and satellite availability and also with weather conditions. The reason I mention this is because you may return to bang the same co-ords as on the GPS and be up to 30 yards from what you wanted to find. That being said & writ GPS units are mega-phun! Before WAAS and while selective availability was in effect, it could wander as far as 400 feet. However, in recent years I have found about 2 meters to be the practical limit. I check when tied up in the marina slip occasionally. There is no way you could come back to the wrong gravestone in an ordinary cemetary. Rodney Myrvaagnes NYC We have achieved faith-based science, faith-based economics, faith-based law enforcement, and faith-based missile defense. What's next? Faith-based air traffic control? |
#39
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"Ryan Robbins" wrote in message news:PTqXc.10246$Ff2.4099@trndny06... "Arty Facting" wrote in message ... Now a combo GPS & camera? Sheesh - that is a thought! The Kodak DCS Pro 14N allows users to plug a GPS receiver into the camera for saving the coordinates to file headers with other EXIF data. The Nikon D1X can do that too, and rumor has it that it will be a feature of the D2X as well. HMc |
#40
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"Ryan Robbins" wrote in message news:PTqXc.10246$Ff2.4099@trndny06... "Arty Facting" wrote in message ... Now a combo GPS & camera? Sheesh - that is a thought! The Kodak DCS Pro 14N allows users to plug a GPS receiver into the camera for saving the coordinates to file headers with other EXIF data. The Nikon D1X can do that too, and rumor has it that it will be a feature of the D2X as well. HMc |
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