Lyons NanoVNA - Page 22

08/09/2020 NanoVNA User Guide | NanoVNA User Guide
https://cho45.github.io/NanoVNA-manual/#7- トレース 状 態 22/51
If you want to increase the maximum measuring distance, you need to lower the maximum frequency.
If you want to specify the distance accurately, you need to increase the maximum frequency.
Time domain bandpass
In bandpass mode, you can simulate the DUT's response to an impulse signal.
The trace format LINEAR LOGMAG SWR can be set to.
Below is an example of the impulse response of a bandpass lter.
Time domain low pass impulse
In lowpass mode, you can simulate TDR. In low pass mode, the start frequency must be set to kHz and the stop frequency must be
set according to the distance you want to measure.
REAL You can set the trace format to .
An example of the step response in the open state and the impulse response in the short state is shown below.