Ag Leader GPS 5100 User Guide - Manual (Page 50)

5 Troubleshooting
4 4 GPS 5100 Receiver User Guide
Interference
Not tracking RTK corrections
The radio link is down or intermittent. • Ensure that the line-of-sight between the base
and rover receivers is not obstructed.
• Ensure that the rover receiver is within range of
the radio.
• Ensure that the radio power supply is on.
Problem Possible solution
Strong magnetic fields
Strong magnetic fields have no
effect on GPS or satellite DGPS
signals.
However, some computers and other
electric equipment radiate
electromagnetic energy that can
interfere with a GPS receiver.
If you suspect interference from a local magnetic
field, move the receiver away from, or turn off, the
suspect electronics while observing the number of
satellites being tracked on the receiver or the signal-
to-noise ratio (SNR) of the satellite. If the SNR goes
up when the electronics are turned off, there may be
interference from the local electronics.
FM 2-way radios
Transmitting FM 2-way radios can
interfere with OmniSTAR, WAAS,
and GPS signal reception. Make sure that there is at least 1 m (3 ft) between
the FM 2-way radio antenna and the receiver.
Engine noise
An unshielded ignition system can
cause enough noise to block
reception of a differential signal. Use resistor spark plug wires on the vehicle ignition
system.
Problem Possible solution