CMR (Compact Measurement Record) format is designed to provide
highly compressed realtime GPS measurement data for RTK applications.
The CMR streaming service is
available on serial ports, TCP ports and UDP ports.
The only configuration option on a CMR stream is to choose between
one of two format variants.
- Standard CMR
This is the original CMR format. Measurement records are
sent every second. Reference position records are sent every five
seconds.
- CMR-Plus
This is an enhanced CMR format that keeps the data rate
more uniform by spreading the Reference Position information
over multiple packets and spreading those out in time. This is
required by some radio links that have problems with the uneven
data rates found in Standard CMR.
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