D
IGITAL
C
ONTROL
I
NCORPORATED
DigiTrak Falcon F5 iGPS Supplement A
4
The next three green lights indicate signal quality. A flashing green light means satellite signals are still being
acquired. As the iGPS acquires more satellite signals and increases in accuracy, the light will turn solid, and
the next light to the right will flash, indicating the module is continuing to search for more satellite signals for
increased accuracy. Three solid green lights indicates the best signal reception and highest accuracy. Using
iGPS is still possible with fewer satellite signals, but response may be slower and accuracy will be reduced.
Signal quality is also reflected as green lights on the
Record Depth/Pitch
button on the DataLog recording
options screen (see
on page 4).
Monitor GNSS signal quality carefully using the iGPS LEDs and do not use GNSS readings
unless at least one of the three LED signal quality indicators is solid green.
What is SBAS?
SBAS stands for Satellite Based Augmentation system. It supports wide-area or regional
augmentation through the use of additional satellite-broadcast messages. An SBAS is
commonly composed of multiple ground stations located at accurately-surveyed points. These
stations take measurements of one or more of the GPS satellites, the satellite signals, or other
environmental factors which may affect the signal received. Based on these measurements,
they send information messages to one or more satellites for re-broadcast to end users to
increase GPS signal accuracy.
GNSS During DataLog
When the iGPS module is attached while DataLog is enabled, it adds additional signal reception information
to the
Record Depth/Pitch
button on the DataLog recording options screen:
1. Record depth/pitch button
showing best GNSS signal
strength
DataLog Recording Options Screen
