u-blox C94-M8P Series User Manual page 23

Parameters C94-M8P-1 for China
Minimum Frequency 433.180 MHz
Maximum Frequency 434.730 MHz
Air Speed 32 kbps
Serial baud rate 19.2 kbps
TX Power 11 dBm
LBT_RSSI 0
Number of Channels 10
ECC 0 (off)
OpResend 0 (off)
Duty Cycle 100 %
Window width 66
MAVLink 0
Table 4: Default configuration for regional variants of the radio module on C94-M8P application boards
The u-blox default configurations of the radio module regional variants are tested and verified. Users need to
take all responsibility for any changes to the default configuration.
The C94-M8P application board uses a HM-TRP radio module with SiK open source firmware, which supports a
subset variant of the Hayes "AT" modem commands for advance configuration.
Before configuring the radio module, the GNSS module UART output needs to be disabled via u-center (View ->
Message View -> UBX-CFG-PRT), as shown in Figure 15. For more information, see the u-center User Guide [4],
and the u-blox 8 / u-blox M8 Receiver Description including Protocol Specification [1].
Figure 15: Disable UART output of NEO-M8P-2 GNSS module on C94-M8P application board
Use the serial-console application, Putty, on the PC to connect to the RS232/UART interface. Configure the serial
connection with baud rate 19200 Bd and COM port number assigned by Windows OS, as shown in Figure 16.
For more information about installing serial-console application, please see chapter B.1.
Figure 16: Configuration of serial connection for Radio Module on C94-M8P Application Board
UBX-15031066 - R06
C94-M8P-2 for USA/Canada
902.5 MHz
928.0 MHz
32 kbps
19.2 kbps
20 dBm
0
50
0 (off)
0 (off)
100 %
66
0
Advance Information
C94-M8P - User Guide
C94-M8P-4 for Japan
C94-M8P-3 for Europe
433.230 MHz 922.8 MHz
434.730 MHz 923.2 MHz
48 kbps 48 kbps
19.2kbps 19.2 kbps
11 dBm 8 dBm
71 78
7 3
0 (off) 0 (off)
0 (off) 0 (off)
20 % 100 %
66 66
0 0
Appendix
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