Stonex SC600 GNSS Receiver – User Manual
39
Default Radio Configuration
The internal radio TRM121 can transmit on the 410-470MHz and 902.4-928 MHz band; users can choose radio channel and
radio protocol through the handheld software or WEB interface. The default frequency of each channel is in the following
table.
Channel Frequency
1 438.125 MHz
2 440.125 MHz
3 441.125 MHz
4 442.125 MHz
5 443.125 MHz
6 444.125 MHz
7 446.125 MHz
8 447.125 MHz
Main features and general performance of the internal radio are summarized below.
General performance
Frequency range
Fixed frequency: 410-470 MHz
Hopping frequency: 410-470 MHz and 902.4-928 MHz
Band width
Fixed frequency: 12.5 KHz, 25 KHz
Hopping frequency: 280 KHz
Modulation scheme
Hopping frequency: GMSK
Fixed Frequency: GMSK, 4FSK
Transmitter
RF output power High power (1.0 W)
Modem
Rate
Fixed frequency: 9600bp, 19200bps
Hopping frequency: 115200bps
Modulation GMSK