Keysight N9010B - 3.3.8.6 Filters; Highpass Filter (Post Demod)

3 Short-Range Comms & IoT Mode
3.3 LoRa (CSS) Demodulation Measurement
3.3.8.6 Filters
Sets the filter applied after the demodulation.
If a filter is switched on but fails to be applied, the error “161 Setting Modified;
Filters not applied” will appear.
Highpass Filter (Post Demod)
Adjusts the post demodulation high pass filters. This filter allows you to remove
unwanted low-frequency components from the modulating signal.
Remote
Command
[:SENSe]:LORA:HPFilter OFF | HPF20 | HPF50 | HPF300 | HPF400 | MANual
[:SENSe]:LORA:HPFilter?
Example
:LORA:HPF HPF20
Notes OFF = No filtering
HPF20 = Use 20 Hz high pass filter
HPF50 = Use 50 Hz high pass filter
HPF300 = Use 300 Hz high pass filter
HPF400 = Use 400 Hz high pass filter
MANual = Use user-defined high pass filter
Preset
OFF
State Saved Saved in instrument state
Off
This selection turns the post demodulation high pass filter off.
Example
:LORA:HPF OFF
20 Hz
Sets the post demodulation high pass filter to 20 Hz. It is a 2-pole Butterworth filter,
its 3 dB cutoff frequency is 20 Hz.
Example
:LORA:HPF HPF20
Short Range Comms & IoT Mode User's &Programmer's Reference 413