Keysight x-series Instruction Manual

3 Short-Range Comms & IoT Mode
3.3 LoRa (CSS) Demodulation Measurement
3.3.8.3 Demod
This tab contains the parameters of the LoRa
TM
PHY layer.
Spreading Factor
Sets the spreading factor of the chirp signal, which affects the symbol period and
the bit rate.
Remote
Command
[:SENSe]:LORA:DEMod:SFACtor <integer>
[:SENSe]:LORA:DEMod:SFACtor?
Example
:LORA:DEM:SFAC 6
:LORA:DEM:SFAC?
Couplings
If the measure time auto is On, the minimum measure time can be impacted by this parameter in the
following way:
Calculating the length of the LoRa symbol based on the BW and the spreading factor
Multiplying the ideal symbol length with the sum of the programmed preamble length plus an empirical
data symbol length. The product will be further multiplied with an empirical coefficient and eventually
set as the minimum measure time
Preset 6
State Saved Saved in instrument state
Min 5
Max 12
BW
Sets the bandwidth of the chirp signal, which decides the symbol rate and the bit
rate.
Short Range Comms & IoT Mode User's &Programmer's Reference 405

Keysight x-series Specifications

General

Analysis Bandwidth	Up to 1 GHz (depending on model)
Real-Time Bandwidth	Up to 1 GHz (depending on model)
Form Factor	Benchtop
Connectivity	LAN, USB, GPIB
Resolution Bandwidth	1 Hz to 10 MHz (depending on model)