u-blox C94-M8P, User Manual

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C94-M8P - User Guide
UBX-15031066 - R06 Advance Information Appendix
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Parameters C94-M8P-1 for China C94-M8P-2 for USA/Canada C94-M8P-3 for Europe
C94-M8P-4 for Japan
Minimum Frequency 433.180 MHz 902.5 MHz 433.230 MHz 922.8 MHz
Maximum Frequency 434.730 MHz 928.0 MHz 434.730 MHz 923.2 MHz
Air Speed 32 kbps 32 kbps 48 kbps 48 kbps
Serial baud rate 19.2 kbps 19.2 kbps 19.2kbps 19.2 kbps
TX Power 11 dBm 20 dBm 11 dBm 8 dBm
LBT_RSSI 0 0 71 78
Number of Channels 10 50 7 3
ECC 0 (off) 0 (off) 0 (off) 0 (off)
OpResend 0 (off) 0 (off) 0 (off) 0 (off)
Duty Cycle 100 % 100 % 20 % 100 %
Window width 66 66 66 66
MAVLink 0 0 0 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