Leica Geosystems GPS System 500 - Technical Reference Manual - Manual (Page 132)

132 5. Configuring the Receiver Technical Reference Manual-4.0.0en
Radio Down - Raw observations can
be logged for post-processing in case
of radio link interuption.
To define the Data Format received,
highlight the Data Format field and
press ENTER.
Leica is the proprietary Leica real-
time GPS data format. This is the
best format to use when working
exclusively with Leica System 500
Rover units.
CMR and CMR+ are compacted
formats used for receiving data from
third party receivers.
RTCM is used for receiving data from
a non-System 500 Reference Station.
RTCM Message 3 will always be
received by default.
RTCM 18, 19 - Uncorrected Carrier
phase and pseudorange. Use for
RTK operations where the
ambiguities will be resolved at the
Rover (RTK). An accuracy of around
1-5cm (rms) can be expected after a
successful ambiguity resolution.
RTCM 20, 21 - RTK Carrier phase
corrections and high-accuracy
pseudorange corrections. Use for
RTK operations. There is little or no
difference in the accuracy obtained
using these messages as compared
to messages 18 and 19.
RTCM 1, 2 - Differential and Delta
Differential GPS corrections. Use for
DGPS applications. An accuracy of
0.5-5m rms can be expected at the
Rover.
RTCM 9, 2 - GPS Partial Correction
Set and Delta Differential GPS
Corrections. Use for DGPS
applications. An accuracy of 0.5-5m
rms can be expected at the Rover.
Use this when a slow data link is
being used in the presence of
interference. Pressing the DEVCE (F5) key lets
you configure and assign a device to
the selected port.
Select the device you wish to assign
to the port. If no default devices are
displayed press DEFLT (F5) to reveal
them.