Chapter 3 OEM7 Receiver Operation
OEM7 Installation and Operation User Manual v4
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1. Output from receiver self-tests may take some time. On startup, the OEM7 receiver is
set to log the RXSTATUSEVENTA log ONNEW on all ports. See
page 86 for more details.
2. If NovAtel Connect is unable to locate the OEM7 receiver, use a different COM port to
communicate with the receiver. When communication has been established, issue a
FRESET STANDARD
command. The original communications port should be ready for
use. See the
FRESET
command for more information.
3. Ports connected to NovAtel Connect have "_30" appended to the port name.
4. XCOM1, XCOM2 and XCOM3 virtual ports can be generated by the receiver. However,
they are unlikely to appear as a port prompt as you cannot connect to these types of
ports using NovAtel Connect. Also, the XCOM ports are not available with the
SERIALCONFIG
command but may be used with other commands, such as the
INTERFACEMODE
command and
LOG
command. Refer to the
for details on the virtual ports.
An example of a response to an input
FIX POSITION
command:
[COM2] FIX POSITION 51.11635 -114.0383 1048.2 [Carriage Return]
<OK
In this example, [COM2] is the port prompt.
This example illustrates command input to the base receiver’s COM2 port that sets the position
of the base station receiver for differential operation.
If the command was accepted, the receiver responds with:
<OK
If a command is entered incorrectly, the receiver responds with:
<ERROR:Invalid Message ID
(or a more detailed message)
Ensure the computer does not sleep or hibernate during a logging session or data will be
lost.
3.3 Transmitting and Receiving Corrections
Corrections can be transmitted from a base station to a rover station to improve position accur-
acy. The base station is the GNSS receiver that acts as the stationary reference. The stationary
reference has a known position and transmits correction messages to the rover station. The
rover station is the GNSS receiver that does not know its exact position and requires correction
messages from a base station to calculate differential GNSS positions. An example of a dif-
ferential setup is shown in
