Freddy Dodge just surveyed a 75x75 area with a hand held GPS within 2 feet he said. Wow makes us Surveyors look like amateurs.
Are you frickin kiddin me 😉
They are idiots! But nice scenery though
I like the show but I have to wait till I can stream it since we just have basic cable.
For a class recently, we were instructed to use a handheld GPS and take 6 observations of each point at one observation a minute. So 6 minutes at each point, watching the clock and taking a new observation each minute. We were then to average our handheld GPS coords, and compare them to coords derived from RTK on two of the same points. I used a Garmin eTrex and was very surprised at how well it actually measured. Two points measured under 1 meter from the RTK coords, in the .75 - .80 range, which comes out to be about 2.60'. Obviously not good enough to measure a real boundary with, but for a dirt pad and hole in the middle of no where, the handheld units can perform very well with the right procedures and setup.
the handheld units can perform very well
The *can* provide that kind of accuracy under the right conditions. But they also *can* be 10 feet or more off. Averaging a single 6-minute session isn't going to tell you which situation you've got.
I once upon?ÿ a time took a lot of data over a fixed point with a Garmin with WAAS.?ÿ The plots include periods of many minutes or an hour with the position being 20 ft from the multi-hour, multi-day average.?ÿ
I also demonstrated a dependence on the angle at which the unit was mounted which I attributed to favoring ground reflections in one direction over the other.
the handheld units can perform very well
The *can* provide that kind of accuracy under the right conditions. But they also *can* be 10 feet or more off. Averaging a single 6-minute session isn't going to tell you which situation you've got.
Indeed, our minor example was just that, a minor example. However, the results of the small task were within 1 meter of (2) averaged 60 second observations of the same point. They can also be 10 feet or more off for sure, even 10 feet would be okay for digging a pit in the middle of no where to set your gold barge on. I don't think they are too worried about setbacks...
On the occasions I end up in a motel, I have the opportunity before few some of this fine programming.... these "reality" shows are filled with?ÿsuch buffoons,?ÿ it's hard to imagine the human race has?ÿbeen able to not go extinct.....?ÿ Gold Rush, Mountain Men, Alaska---- gimme a break....?ÿ?ÿ
On the occasions I end up in a motel, I have the opportunity before few some of this fine programming.... these "reality" shows are filled with?ÿsuch buffoons,?ÿ it's hard to imagine the human race has?ÿbeen able to not go extinct.....?ÿ Gold Rush, Mountain Men, Alaska---- gimme a break....?ÿ?ÿ
In reality though, it's folks like those in the shows that kept us from going extinct. Not everyone lives on RPLS today and does CAD for a living... wink, wink... I try to do a bit of both :)?ÿ
Parker also used a handheld gps to locate the boundary of his claim in season 1.?ÿ I hazily recollect he said it was only accurate to a few feet.
Elf is advertising a GPS that is survey grade to 1 foot. It hooks up to your iPhone or iPad. The lower accuracy Elfs are being used for aircraft navigation. They have GNSS capability.
If you look at the newer Trimble and Javad the major bulk is in the battery area. We'll be using handhelds before too much longer for subcentimeter work.
Who is Freddy Dodge?
?ÿ
In reality though, it's folks like those in the shows that kept us from going extinct. Not everyone lives on RPLS today and does CAD for a living... wink, wink... I try to do a bit of both :)?ÿ
ummm, no.... those people are the folks who make our workers comp rates go thru the roof, breed out a ton of "people of walmart- mutant piglets' (as Al Chace used to say) and generally provide comic relief?ÿ in the bread and circuses world we live in..... (close to P&R but not quite)