STONEX S990A - Page 54

Stonex S990A GNSS Receiver – User Manual v1.0 53
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