Is there any limitation about surrounding temperature? In how cold enviroment can base be used? Can I put antennas to the tin roof, and leave them there around a year, under snow and temperature sometimes under -30°C?
Survey-in mode, this mode automatically calculate antenna position and broad cast it as a RTCM1005 message.
Fixed Mode, you can mamually set base station position. (You need to survey accurate base station position in some way.)
You can test and change these setting anytime.
Problem with SURVEY-IN is that it’s not very accurate.
You want to rigidly mount the antenna, I’d recommend a pole so snow/ice do not settle on it or move it, and so it is horizontal and breaks the roof line, figure the receiver is programmed with a 10-15 degree elevation mask. Timing antenna typically have a pointy radome to sloth off snow.
Yes, you can test before. Just make sure you remove the power and power again once it’s in the final installation. If you are going to do such a fixed installation, you might want to consider improving the survey-in target accuracy or use a fixed position if you already know it.
“Is there any limitation about surrounding temperature? In how cold enviroment can base be used? Can I put antennas to the tin roof, and leave them there around a year, under snow and temperature sometimes under -30°C?”
-40 to +85 is OK.
“If you are going to do such a fixed installation, you might want to consider improving the survey-in target accuracy or use a fixed position if you already know it.”
How can I do that?
UBX-CFG-TMODE3. You can monitor with UBX-NAV-SVIN the status.
Ok. This is getting too complicated for me. I think I’ll go with default settings for now. =)
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