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I was looking at some plastic (acrylic) that could cover a unit and I was thinking of housing a unit in that plastic. The top is plastic of one form or another. So, what is the magic of the cover? My next step is to try it out, but I figured I'd ask around first.
If I can shroud the GPS in plastic, could I paint the plastic too?
I am almost sure there is a way, but I have no idea about the materials used to construct these GPS receivers. Thanks.
Posted : March 19, 2015 3:04 pm
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>So, what is the magic of the cover?
The plastic cover of any GPS receiver is an exact size and shape. NGS antenna calibrations are specifically designed to eliminate the delays created by this cover (among other things).
http://www.ngs.noaa.gov/ANTCAL/Antennas.jsp?manu=Trimble
Look at the link above, and in particular look at the 'radome' column. You will notice some antennas are the same save the radome, or cover, for that model. These identical antennas with different radomes have different calibrations...
I suppose with a good bit of testing you could find out exactly how much your cover will affect the position solution.
Posted : March 19, 2015 3:49 pm
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Excellent. And thank you... seven pages of reading for when the kids go to bed.
Posted : March 19, 2015 3:56 pm
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You might also want to check the UNAVCO page at: http://facility.unavco.org/kb/questions/520/UNAVCO+Resources%3A+Radomes
Note reference to height differences of 2 to 40 mm.
Enjoy,
DMM
Posted : March 19, 2015 8:17 pm