Users Manual

RF1276D27 Long Distance Transceiver module V4.0
- 7 - 2016-6-12
Figure 1:Size of Module
8. Parameter Configuration
Through serial portor usingsetting tool ‘Rf-Tool’, users can configure relative parameters such
asfrequency, UART rate, air rate, checkout mode and so on.
It is very simply forconfiguration. Based on different requirement, all options can be selected visually. It is
shownin Table 2 and Figure 3.
Parameter Description
UART area The values are fixed at 9.6k bps & no parity check.
RF frequency It indicates the center frequency of RF carrier
RF mode Standard mode, Low Power mode
RF_Factor
Lora spreading factor. Larger value means higher sensitivity but
longer air transmission time
RF_BW
Lora bandwidth. Larger value means lower sensitivity. Recommended
value: 125K.