I see alot of trimble 5800 base and rovers on ebay. cheap. are these still useful? i am a cash guy and of course can't afford to pay 30k for rtk.
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i use Microsurvey field genius which has gps on it along with the total station software.
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any comments? i know these have got to be 15 years old.
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You can get an GNSS with glonass R*-2 and a TSC2 collector for cheap...Ā
the gps units work well may need some updates but the collectors often times have burn't out back light or bad internal batteries.
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You can get static observations without a collector using trimble DL from the android play store and an older trimble receiver...it works awesome.
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depending on where you live you can also set up a virtual survey reference system for about $800.