40 minutes is about what I've got and hope to read to half of that.?ÿ But 20 minutes is 14 mm at 2.5 meters, and on a good site the expected rms horiz...

I'm using a level held along each side of the pole, but it isn't sensitive enough.?ÿ ?ÿ For GPSonBM the horizontal position is secondary, so I thought...

What do you folks who spend so much time in hotels do to avoid bedbugs??ÿ?ÿ Can you depend on a quick visual inspection to know you are safe? If you f...

I'm afraid my little contribution is but a drop in the bucket of what is needed.?ÿ Our DOT has no funding for this activity, and hasn't submitted a GP...

Amen.?ÿ Makes me think of the filed plat near a relative's property that I checked out of general interest.?ÿ Fits my measurement real well as SPC and...

Put record and measured on the plat.?ÿ The tax map GIS folks can use whichever they choose, either the original or what they believe is more accurate....

And hope the bridge steel fabricator knows what SPC with CSF means, too, or somebody does the translation to true length at specified temperature for ...

I was once told that OPUS takes earth tide effects into account.?ÿ I don't have an immediate reference for that.?ÿ I'm a long way from the oceans, so ...

I think there was a reversal of the I and you in your original post.

I should know better than to brag.?ÿ Karma and statistics will get you.?ÿ Most recent 8-hour session rapid-orbit solution was 31 mm below the older 6-...

@stlsurveyor are you sure your hypothetical says what you intended?

Ask them what repeatability their phone measurement has on different days?ÿ or even how much it moves while just standing there ?ÿ

?ÿGSVS11 is in Texas, GSVS14 in Iowa, and GSVS17 in Colorado.?ÿ I think (not certain) the GSVS data was just used to check xGeoid17b?ÿ but not to cons...

Iowa.?ÿ Low 90's F, and feels humid. A wet towel worn sheik style helps a lot more than a hat.?ÿ Drinking lots of water and hiding in air conditioned ...

I'm not comparing GPS derived versus leveled.?ÿ I'm comparing the GPS derived of two mark and leveled of those marks for consistent differences.?ÿ How...