> I always collect data for OPUS but many times I have to start work with a here position and correct it after the fact. The closer I can get the h...

> Just for curiosity's sake, is there a good paper/article on the actual transformation from NAD83 to NAD83(2011), and maybe a piece of software th...

> What say you?I say I'm glad I practice a mandatory recording state.

> I think your diagram has 2 unoccupied points, where the far ends of the traverses are the same point seen from two different places, resulting in...

> If he measured all but one angle (any one), then there is no huge ambiguity but any attempt at finding an angular closure will be affected by len...

> You have enough data to close the figure and do some checks if you measured 9 distances and 8 angles. I think this assumes that both traverses w...

> No chemicalsI consider citric acid, malic acid and acetic acid to be chemicals. How about "no unsafe concentrations of chemicals"?

In order to use the M record you need to replace the BS horizontal angle value with a question mark, as in my example above.

> 2-1-2 just does not cut itYou can use the M data type, but use a question mark for the angle.Example:[code=html]M 2-1-2 ? 100.00 90.0550 5.12...

Can the low-end Garmins display positions to the nearest tenth of a second? My Garmin 12CX -- which I love -- no longer works without an external ant...

Record of Survey - what the Burpels ?> CA BurpelsThe initialization has changed a number of times over the years, but I don't think it's ever been ...

> brachium is Latin for "arm"With only 2 years of high school Latin behind me, the first time I saw a tribrach and was told its name, that name imm...

You do nice work! I enjoy reading about all your projects, but am partial to the ones that involve batteries and electronics.

> In you data reduction section, I know the Z angle at OCC can be obtained from the gun. How did you get the Z angle at the Target?This wasn't for ...

> people that like to reverse numbers.Kind of like me. Notice how I put the feet in the meters column, and vice versa, for the distance entries? ...

> Perhaps a few old timers here would be willing to post a picture of their field book format. Not exactly a field book, but here's a sample of th...