Optional integrated U-Blox NEO M8T GNSS receiver

16 Mar 2016

Update 6 March 2020 - Now applies to Mesa 3 as well using part number 28470.

The Mesa 2 can now be purchased with the optional integrated U-Blox NEO M8T receiver, which replaces the standard M8N receiver. This optional part number 25654 receiver offers raw UBX data output for potential further differential correction in real-time (such as over an Internet connection) or post-processed using specific software applications. Such corrections can provide improved location positioning accuracy. For further information, see the following web page.

Raw GNSS data output for further differential correction

It is recommended (though not required) that this receiver be used with an external antenna which is connected via the optional antenna connector/pack, such as the Tallysman TW2710 with right-angle MCX connector that we offer.

Accuracy comparison between the standard U-Blox Neo M8N and the optional M8T receivers is as follows.

• Real time SBAS and autonomous accuracy – identical 2 meters CEP (GPS with SBAS) or 4 meters CEP (GLONASS only)
• M8T is capable of post-processing. M8T post-processing with internal antenna on Archer 2 has been 2 meters down to sub-meter, roughly 60 ~ 90 cm. Use of an external antenna has shown post-processing down to a few decimeters. It is difficult to quantify accurately, as there are many factors to consider; static vs kinematic, baseline length, observable conditions, etc. For further details, see the following article.
  
  GNSS (GPS) accuracy explained