Chapter 3 85
Making Measurements
AM Depth Measurement
High Pass Filter
Select between None (<20 Hz), 50 Hz, 300 Hz. If PSA firmware revision A.11.08
or above, or Option 23B is installed, 400 Hz is available.
Low Pass Filter
Select between 3 kHz, 15 kHz, 30 kHz, 300 kHz and None (>300 kHz). If PSA
firmware revision A.11.08 or above, or Option 23B is installed, 80 kHz is
available.
Band Pass
Selects between None and CCITT weighing, if PSA firmware revision A.11.08 or
above, or Option 23B is installed.
Filter Type
This parameter is used to determine the way that the high pass and low pass filters
are implemented. the option for this parameter are the following:
FIR (0dB) These filters have 0 dB of loss at the stop frequency. The
measurement speed with this type of filter is slow.
IIR (–3dB) These filters have 3 dB of loss at the stop frequency. The
measurement speed with this type of filter is faster than the FIR
filter.
Adjusting the View
Press Trace/View.
Numeric results is the default setting. Toggle the key to Demod Waveform to view
the waveform.
Press
Span X scale and Amplitude Y scale to adjust the waveform display.