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Southern Illinois | The AgGPS receivers from Trimble cannot use RTCM v3 corrections. They are made to only read CMR message types and RTCM 2.x. You need a datastream that provides CMR message type 3. This is Leica's documented GLONASS message and is fully supported by Trimble.
I have seen the same issue with Trimble receivers. When the sun is near the horizon I loose RTK fix and can only get a Float solution. Once the sun is down far enough RTK fix comes back, at least this time of year. Also yesterday there was a thunderstorm close by and I lost fix untill the weather cleared. Just like my Dish TV reception.
Many basestations do not output CMR type 3 because it was not published by Trimble. I just wrote a conversion program from RTCM 1012 to CMR 3.
Edited by JHEnt 7/28/2015 07:24
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 IMG_20150727_195153649_HDR.jpg (279KB - 108 downloads)
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Trimble 372 with glonass
