Multipathing, 900 mhz rtk—base station setup – John Deere STARFIRE RTK OMPFP11348 User Manual

Page 15

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900 MHz RTK—Base Station Setup

DK01672,0000209 -19-01DEC11-2/3

DK01672,0000209 -19-01DEC11-3/3

When selecting a base station location, there are three
main points to look for: rigidity, good view of the sky,
and few reflective objects. The base station provides
corrections to the vehicle receiver based on the fixed
known position which is surveyed in with an absolute
survey or quick survey. Any motion of the base station
receiver will translate directly to the vehicle position.
Mount the base station on a rigid structure, such as the
pole in the photo. When mounting on a structure such as
a building, the receiver should generally be installed 2
meters above the highest point.

PC12104

—UN—03JUN09

Receiver on Rigid Pole

PC12105

—UN—03JUN09

Receiver on Radio Tower

PC12106

—UN—03JUN09

Receiver Next to Trees

Since GPS satellites orbit the earth, the base station
needs to have a clear view of the sky in all directions
above a 5 degree mask angle. Base stations with a good

view of the sky are much more reliable than those with
shading. Installing the receiver on the side of radio towers
or next to trees is not recommended.

20-7

121511

PN=15

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