@landbutcher464mhz Indeed.

@peter-lothian It is actually an 1867 town layout that was altered in 1900 by the county commissioners. A map of that alteration was recorded in th...

The stone was there in an alteration of the layout made in 1900 by the County Commisioners. The stone was recovered on a survey made in 1982. In 2009 ...

The original stone mark was part of a town layout in 1867, and was last shown recovered on a 1982 survey map. The position of the screw matches the hi...

That's plagiarism.

@olemanriver this point is moot since the government shutdown, however. there was a "beta" version of OPUS which processed GNSS data and later in the ...

OPUS did have a GNSS subsciption and processed data using the GNSS constellation until shortly before the government shutdown.

I am used to seeing what others call virtual pincushions. That's when the surveyor finds a monument, and notes that it doesn't agree withtheir calcula...

@mightymoe Mass DOT has their own CORS. All I do is submit the RINEX files from my receivers. And I would not have found this out had I not posted h...

While I applaud those of you who are downloading CORS and other GNSS data, I assume you are using software to post-process that data to get your resul...

@williwaw Always great to see Mark Silver. I first bought the CHC-X90-OPUS antenna from iGage. Now I have two iG5 antennas and can collect static ...

@john-hamilton That is great, but I don't have TBC or any other software to use.

@big-al aren't you in Massachusetts? Bob Freeman suggested the Mass DOT CORS site. It looks good to me. Other than that, I like the Canadian site.

@bob-freeman Yes, I am in Massachusetts. I'll have a look at Mass DOT. Thank you.

I'm not using Trimble except for a small hand-held unit that allows me to check for gross errors. I tried the Canadian Spatial Reference System (CSR...

I have two static receivers. The AUSPOS site was easy but the coordinates are ITRF not NAD83. When I tried an old data file that had an OPUS solution ...