3 Short-Range Comms & IoT Mode
3.3 LoRa (CSS) Demodulation Measurement
RF Envelope: 4
Raw Demod Waveform: 5
Frequency Drift vs Symbols: 6
Example
:DISP:LORA:WIND:TRAC:Y:PDIV 5 Db
Couplings The Scale/Div of the raw demod waveform window and the demod waveform window are coupled with
the LoRa BW. The value of Scale/Div is preset based on the bandwidth of the LoRa signal, so that the
trace will not be truncated in the vertical direction
Preset
1 RF Spectrum 10 Db
2 Demod Waveform 15 kHz
3 AF Spectrum 10 Db
4 RF Envelope 10 Db
5 Raw Demod Waveform 15 kHz
6 Frequency Drift vs Symbols 500 Hz
State Saved Saved in instrument state
Min/Max
1 RF Spectrum 0.1 Db / 20 Db
2 Demod Waveform 1 Hz / 1 GHz
3 AF Spectrum 0.1 Db / 20 Db
4 RF Envelope 0.1 Db / 20 Db
5 Raw Demod Waveform 1 Hz / 1 GHz
6 Frequency Drift vs Symbols 1 Hz / 1 GHz
Annotation Scale/Div is shown in the upper left side of the display
Ref Position
Positions the reference level at the top, center, or bottom of the ordinate. Changing
the reference position does not change the reference value.
This control does not exist for the metrics window.
Remote
Command
:DISPlay:LORA:WINDow[1]:TRACe:Y[:SCALe]:RPOSition TOP | CENTer | BOTTom
:DISPlay:LORA:WINDow[1]:TRACe:Y[:SCALe]:RPOSition?
The windows are numbered as follows:
RF Spectrum: 1
Short Range Comms & IoT Mode User's &Programmer's Reference 327
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