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I could write a book on the difference between relative and absolute antenna calibrations, but I don't need to and you should not spend much time wondering about why. Or if. You ‘Just need to make the change to Absolute Antenna Calibrations' for everything.
But, depending upon which antennas you own, you may find there is not an absolute calibration for your antenna! What to do?
First a little background. Let's look at a couple of sample antenna:
In general, this trend continues for most antenna because they were NOT actually re-calibrated for absolute calibrations, the absolute values are 18.1 mm less than the relative values. This is because this is the difference between the reference AOAD/M_B Dorne Margolin B Chokering:
Gnss Solutions Software
The L1 difference (59.8 – 78.0) = -18.2 mm (sorry, I don't know why it is 18.2 instead of 18.1)
The L2 difference (88.3 – 96.0) = -7.7 mm
So if you have an antenna like the NAP 100 with a relative calibration north : 1.0mm, east : 3.8mm, up : 73.2mm above ARP; which would look like this:
Ashtech Gps
I believe it is safe to say the absolute calibration would be:
Ashtech Solutions software shipped with ProMark2 is identical to the full version of Solu-tions except it will only process L1 data. Contact Thales Navigation Sales for information on upgrades to the full L1/L2 version. Can I process ProMark2 data with CORS data? CORS data can be converted to Ashtech format with the RINEX converter. Aug 26, 2020 Ashtech Solutions (Projman.exe). GNSS Solutions is a comprehensive office program with all the tools required to successfully process GPS, GLONASS and SBAS survey data. It provides optimal results from any combination of static, rapid static or kinematic data.
By the way, if you are still using L1 only receivers to do static work (I will forgive you if you are running Stop and Go) you need to sell them (PM2, PM3) on ebay and trade-up to X90-OPUS receivers. The days of L1 only should be numbered!
Gnss Solutions Software Download
Ashtech Gps
I believe it is safe to say the absolute calibration would be:
Ashtech Solutions software shipped with ProMark2 is identical to the full version of Solu-tions except it will only process L1 data. Contact Thales Navigation Sales for information on upgrades to the full L1/L2 version. Can I process ProMark2 data with CORS data? CORS data can be converted to Ashtech format with the RINEX converter. Aug 26, 2020 Ashtech Solutions (Projman.exe). GNSS Solutions is a comprehensive office program with all the tools required to successfully process GPS, GLONASS and SBAS survey data. It provides optimal results from any combination of static, rapid static or kinematic data.
By the way, if you are still using L1 only receivers to do static work (I will forgive you if you are running Stop and Go) you need to sell them (PM2, PM3) on ebay and trade-up to X90-OPUS receivers. The days of L1 only should be numbered!
Gnss Solutions Software Download
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Ashtech Gnss Solutions Software Download Windows 7
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