HDO6000 High Definition Oscilloscope
Waveform Gated Parameters
1. From the menu bar, choose
Measure
→
Measure Setup
.
2. Touch any
P
x
tab to open the setup dialog.
3. Touch
Source
and select a source from the pop-up menu.
4. Touch
Measure
and select a parameter from the pop-up menu.
5. Touch the
Accept
righ-hand dialog tab, then check the
Values Based on Waveform State
box.
6. Touch
When Wform
and select the gating source.
7. Touch
State Is
and select
High
or
Low
from the pop-up menu. Parameter measurements on the
subject waveform will only be taken when the gating waveform is in the selected state.
8. Touch
Level Type
and select
Absolute
or
Percent
from the pop-up menu.
9. Touch
Level
and enter the crossing level value at which you want measurements to begin..
You can instead touch the
Find Level
button to automatically select the 50% level of your gating
waveform.
Math on Parameters
Besides reading parameter measurements, you can set up a custom parameter that performs arithmetic
operations (addition, subtraction, multiplication, division) on two other parameter measurements.
Alternatively, you can apply mathematical functions (for example, invert) to a single parameter
measurement.
The setup for Math on Parameters is much like other custom parameter setup. The only significant
difference is the choice of Math on Parameters instead of Measure on Waveforms and the selection of
source parameters instead of source traces. There is added functionality for using custom scripts to
calculate the results.
Math on Parameters differs from Math in that the input and the output are still numerical values, as are
all parameter measurements. Math functions, on the other hand, input and output waveform traces. Math
on Parameters results display in the parameter readout table.
Exclusions
L
OGARITHMIC
P
ARAMETERS
The parameter math feature prevents multiplication and division of parameters that return logarithmic
values. These parameters include:
l
auto-correlation signal-to-noise ratio (ACSN)
l
narrow-band power (NBPW)
l
media signal-to-noise ratio (MSNR)
l
residual signal-to-noise ratio (RSNR)
l
top-to-base ratio when the units are in dB (TBR)
O
THER
E
XCLUDED
P
ARAMETERS
Parameters that are already the result of parameter math operations are excluded. If they are included in
a remote control setup command, an error message is generated and the setup canceled.
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