I have found that the GNSS receiver and controlling software (TMM) sometimes need to sit a while (5 minutes, perhaps) with an open sky view to probably establish an adequate almanac. This is the case for a device that hasn't 'seen' GNSS signals for quite a while, has been moved a significant distance or is brand new. Everything should be setup as if you were going to perform data collection before doing this. It may be wise to turn off Auto-Lock in the Settings app while doing this.
TMM and Field Maps or Collector can be difficult to get working properly so don't feel bad. It isn't like the Geo7x where the thing is up and running every time in a few minutes. We spend a lot of time messing with things, trying to make the system work.
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Paul Lohr
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Original Message:
Sent: 10-21-2021 20:16
From: Vivian Lee
Subject: Unable to achieve fixed solution in ArcGIS Field Maps
I have tried to use my client's iPad Pro 11" (2nd Generation) with iOS: 14.8, with Trimble Mobile Manager version2.8.1.1050 & ESRI Field Maps version: 21.3.0 (Build 512).
However, even we have reached RTK Fixed in TMM, going back to Field Maps still got accuracy of around 1m, and Fix mode is differential or even autonomous. We have tried with another iPad with IOS 14.6, and it works perfectly. The version of TMM &Field maps on the both iPAD were the same. The testing were done in the same place at similar time.
The only different should be the IOS, iPAD version and log in account of ArcGIS.
Not sure about the reason, Did anyone has got the same problem?
Thank you.
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Vivian Lee
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