Chapter 3 OEM7 Receiver Operation
CPT7 and CPT7700 Installation and Operation User Manual v12
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3.2 Getting Started
The receiver’s software resides in flash memory. When first powered, it undergoes a complete self-test. If an
error condition is detected during the self-test, the status word changes. This self-test status word can be
viewed in the header of any data output log. Refer to Messages in the
OEM7 Commands and Logs Reference
for header information. If a persistent error occurs, contact your local NovAtel dealer. If the dealer
cannot resolve the problem, contact NovAtel Customer Support directly using one of the methods listed in
3.2.1 Communicating with the Receiver
You can communicate with the receiver using NovAtel Setup & Monitor (Web), NovAtel Application Suite or a
terminal emulation program.
For instructions on using NovAtel Setup & Monitor (Web) and NovAtel Application Suite, refer to
When the receiver is first turned on, no data is transmitted from the COM ports except for the port prompt.
Any of the COM port prompts indicate that the receiver is ready and waiting for command input. The screen
may display other port names for other port types.
1. Output from receiver self-tests may take some time. On startup, the receiver is set to log the
RXSTATUSEVENTA log ONNEW on all ports. See
on page 129 for more
details.
2. If NovAtel Application Suite is unable to locate the 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.
An example of a response to an input
LOG
command:
[COM2] LOG COM1 BESTPOS ONTIME 1
<OK
In this example, [COM2] is the port prompt.
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 accuracy. The base
station is the GNSS receiver that acts as the stationary reference. The stationary reference has a known
