Receiver Configuration Register Tab; Rx Bandwidth; Figure 17: Receiver Configuration Register Tab; Figure 18: Rx Bandwidth Window - Semtech SX1231SKB User Manual

SX1231-31SKB
USER GUIDE

5.3 Receiver Configuration Register Tab

The Transmitter Configuration Register Tab is illustrated below. Please refer to the SX1231 for a full
description of the configuration register functions.
Configuration register value entries can be selected from the drop down menus within the tab or entered
manual within the tab fields. If values are entered manually that do not coincide with an exact
configuration, the GUI will automatically update the displayed value to the next valid register configuration
and write that value to the appropriate configuration register.
5.3.3
5.3.1
5.3.4
5.3.2

Figure 17: Receiver Configuration Register Tab

Note that with Auto threshold enabled, the RSSI threshold is influenced by the double sideband receiver
bandwidth, as detailed in the SX1231 datasheet.

5.3.1 Rx Bandwidth

The Rx Bandwidth, RxBw, window is illustrated below. For optimum performance in FSK mode when
operating with a modulation index > 2, the DCC frequency is recommended to be approximately 4% of
the receiver bandwidth, RxBw. The GUI will automatically set the appropriate DCC frequency based upon
the setting of RX filter bandwidth.

Figure 18: Rx Bandwidth Window

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