2 RTK FIX points

I got several RTK Fix points ! 1.2 m apart. This is in the forest with 38 sat in the reciever and 22 in base. Very curious false RTK Fix!

Then I had 37 sats in RS2 and 21 in base with age 1 second and only Float for 10 minutes. How come?

Then we have the curious “Contact lost”! and need for restart.

Hi Jan-Olov,

Welcome back to the forum!

I see the Float on your device indeed. I’ll just be a bit more cautious to jump to any conclusion for now. First, we need to see the full picture here.

You mention that you survey in the forest. That’s actually kind of hard for any GNSS receiver. This degrades the data quality so it affects the Fix calculation. That’s usually the main thing for Fix issues. You can share your raw data logs with me, of course, so that I can make an informed conclusion here.

Regarding the disconnection, please, make sure your Battery Optimization on Android is switched off. This setting plays hell with the background connection in any app, in ReachView 3 as well. It’s better to keep it off.

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I remember from Leica with 11 sats,it took 15 min in Float to get Fix i wet,windy forest.

I thoght that 39 sats and 20 base ,should make a diffence. A friend at Sbg ab,say it is refections from trees. Modern recievers does not seems to fix the problem today,than before.

I shall check battery option on the pad

Hi Jan-Olov,

Even though the number of the visible satellites is important, their data quality is more of a thing to pay attention to. After all, that’s what affects the calculations the most.

If you share the raw log, the position log and the base correction log from your survey, I can take a closer look at how the quality is affected. For now, I can only guess that you’re getting low SNR and some amount of cycle slips. The coordinates of the points where you see the difference are also welcomed.

Let me know if it helps!

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I have forgotten if the raw log, the position log and the base correction log ,can be seen afterwards or it must be saved before shut down.

Depending on your workflow. Generally, the logs start once you start the device. You can either turn them off manually or they can be turned off automatically when you turn off the receiver. The latter method is more reckless, though, we don’t recommend going with it on the daily basis.

Either way, if you recorded logs, they should be visible in the Logging panel.

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RS2 Reach3 have looged files each day!

So I could send them!

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Hi Jan-Olov,

Sure, you can share them with me. If the data there is somewhat sensitive, please go with the support@emlid.com option.

Also, please, don’t forget to include the CSV file of the point you’ve surveyed and their known coordinates. That’ll help us see the difference, if there’s any.