Rtk Correction Data Formats - Magellan ProFlex 500 Reference Manual

RTK Implementation

RTK Correction Data Formats

Key Terms and
Expressions
Proprietary
Standard Formats
336
This section describes the different data formats that can be
used by Magellan receivers to transport RTK correction data
from a base to a rover.
One of the preliminary settings you will have to do before
using your equipment is to choose one these data formats and
set the output rate. This choice should be done in
conjunction with that of the data link (see the "Data Link"
section).
Observable: Is another name for the data being collected
(observed) by a receiver.
DBEN
Formats
DBEN is a Magellan proprietary format. It is a compressed
format that includes pseudo-range and carrier phase
measurements. The DBEN format consists of two different
messages as described in the table below.
Code and phase measurements
Base position
CMR, CMR+
CMR (for Compact Measurement Record) is a non-proprietary
RTK format that uses data compression techniques to reduce
the bandwidth required to transmit the RTK data. In other
words, the amount of data to be transmitted on the data link
is less with CMR than with other formats.
There is also an enhanced version of this format called
CMR+.
Observables
Coordinates of base position
Base description
Message Type
Message Type
Transfer Rate
Range
(default)
Less than 1 second
1 second
up to 300 seconds
30 seconds 1 to 300 seconds
Transfer Rate
Range
(default)
Less than 1 second
1 second
up to 300 seconds
30 seconds 1 to 300 seconds
30 seconds 1 to 300 seconds