54
ProPak6 Installation and Operation User Manual Rev 4
Chapter 3
Operation
3.6.5
Configuration Notes
For compatibility with other GNSS receivers and to minimize message size, use the standard form of
RTCA, RTCM, RTCMV3, CMR+ or CMR corrections shown in the base and rover examples above. This
requires using the
INTERFACEMODE
command to dedicate one direction of a serial port to one
message type only. When the
INTERFACEMODE
command is used to change the mode from the
NOVATEL default, the NovAtel format messages can no longer be used.
To mix NovAtel format messages and RTCA, RTCM, RTCMV3 or CMR messages on the same port,
leave the interface mode set to NOVATEL and log out variants of the standard correction messages with
a NovAtel header. ASCII or binary variants can be requested by appending an A or B to the standard
message name. For example, on the base station:
interfacemode com2 novatel novatel
fix position 51.11358042 -114.04358013 1059.4105
log com2 rtcaobs2b ontime 2
At the rover, leave the interface mode default settings (interfacemode com2 novatel novatel). The rover
recognizes the default and uses the corrections it receives with a NovAtel header.
The
PSRDIFFSOURCE
and
RTKSOURCE
commands set the station ID values that identify the base
stations to accept pseudorange or RTK corrections from. They are useful commands when the rover
station is receiving corrections from multiple base stations.
At the base station, log the contents of the standard corrections in a form that is easier to read. These
larger variants have the correction fields broken out into standard types in the log, rather than
compressed into bit fields. This can be useful to modify the format of the corrections for a non-standard
application or to look at the corrections for system debugging purposes. These variants have DATA in
their names (e.g., RTCADATA1, RTCMDATA1, CMRDATAOBS). Refer to the
(OM-20000129) for more information.
3.6.6
Enabling SBAS Positioning
The ProPak6 is capable of SBAS positioning. This positioning mode is enabled using the
SBASCONTROL
command:
sbascontrol enable auto
When the command is entered, the ProPak6 automatically tracks the SBAS that is operating in the region
(e.g., WAAS or EGNOS) and applies the corrections from the service. On a simulator, leave the test
mode parameter off or specify NONE explicitly. For more on SBAS, refer to the NovAtel application note
APN-051 Positioning Modes of Operation
www.novatel.com/support/search/
1. Interface mode must be set to NOVATEL for the receiver to issue logs with an A or
B suffix.
2. Using the receiver in NOVATEL mode consumes more CPU bandwidth than using
the native differential messages as shown in
Section 3.4.1, Defining Antenna and
3. To find information on how to send multiple commands and log requests using DOS
or Windows, search our knowledge database at
