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Four Satellite Constellations for Arrow 100

Posted by AFS on 3/31/2017 to Product News
Four Satellite Constellations for Arrow 100
The submeter Arrow 100 GNSS has the ability to track and use all four available constellations simultaneously!  No upgrade cost required!

What is PDOP? And Why it's Obsolete

Posted by Matt on 3/15/2017 to Knowledge Base
What is PDOP?  And Why it's Obsolete
What is PDOP, HDOP, and VDOP?  What do the values mean? 
This article provides answers to all that and the reasons why GPS/GNSS users should have been ignoring them for a while now.