12 Glossary M
License
A license enables a software feature, and is valid for an unlimited duration. A license does not need
to be activated, but does need to be assigned to and delivered to a specific display. Assignment and
delivery of a license occurs on the reseller portal.
M
Manual override
Required for platforms that employ a pressure transducer for the manual override function. Change
the default only if the operation of the manual override function is unacceptable.
Material
A product that is controlled by a PWM valve, Servo valve, or Rawson drive. You can use a planter
(seed), liquid, granular seed and granular fertilizer, all of which have different setup parameters.
Multipath error
An error caused by the interference of the same signal reaching the receiver by two different paths:
once via the direct path, and once via a reflection. A major cause of GPS errors.
N
NMEA standard
An electrical, hardware and data standard designed by the National Marine Electronics Association
that dictates the content and format of communication between GPS receivers and other devices.
NMEAmessages include data that provides location and accuracy, the number of satellites being
used, the dilution of precision and signal strength.
P
PDOP
Position Dilution of Precision. A calculation that takes into account the satellites that can be seen,
how high they are and their bearing. The outcome of the calculation is an estimation of how prone
to error your GPS position is. The lower the value, the more accurate your position. You may wish to
plan your field work for periods of low PDOP. Generally, the more satellites in view, the better
(lower) the PDOP.
Pivot
334 TMX-2050 Display User Guide Version 1.075, Revision C
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