John Deere STARFIRE RTK OMPFP11348 - Manual (Page 19)

900 MHz RTK—Base Station Setup
JS56696,0000805 -19-15APR10-1/1
PDOP Operating Values
PC12061
—UN—12MA
Y09
StarFire 3000 - Satellites
A—SkyPlot tab B—Graph tab C—PDOP
PDOP operating values should remain BELOW 3.5
DURING ALL AUTOTRAC OPERATIONS, especially RTK
high precision operations. As the value of PDOP rises
above 3.5, position accuracy will be compromised.
As a rule, when the GPS receiver is warming up from
being in a powered off state and gathering satellite signals
high PDOP values (4 to 20+) will be experienced for
upwards of 15 minutes (under normal conditions).
It is important to monitor PDOP along with GPS signal
quality while performing field operations.
20-11 121511
PN=19