Waveform analysisMXO 4 Series
188User Manual 1335.5337.02 ─ 07
Unit Description
Hz Hertz: the unit for frequency, the number of occurrences of a repeating
event per second.
dBm dBm: the unit for power level.
dBm is expressed in decibels (dB) with reference to 1 milliwatt (mW).
dB dB: the unit for power gain, expressed in the base-10 logarithm of the ratio
between two power levels.
dBμV dBµV: the unit for voltage level.
dBμV is expressed in decibels (dB) relative to 1μV across 50Ω resistance.
dBV dBV: the unit for voltage level.
dBV is expressed in decibels (dB) relative to 1V across 50Ω resistance
Degree Degree: the unit for an angle.
A degree is a measure of angle equal to 1/360 of a full rotation.
rad Radian: the unit for an angle.
2π radians make up a full rotation.
Table 8-3: Filters
Value Usage/Comment FormulaEditor expression
FIR highpass FIR(highpass,source,limit,shape):
source=input channel of the signal,
limit=cutoff frequency
shape=rectangle for the highpass filter
Example:
FIR(highpass,C2,3e+09,rectangle)
Sets a rectangle highpass filter on Channel 2 with a 3 GHz cutoff frequency
FIR lowpass FIR(lowpass,source,limit,shape)
source=input channel of the signal
limit=cutoff frequency
shape=Gaussian or rectangle for the lowpass filter
Example:
FIR(lowpass,C1,1e+07,gaussian)
Sets a Gaussian lowpass filter on Channel 1 with a 10 MHz cutoff frequency
Table 8-4: Numeric
Icon Description Usage/Comment FormulaEditor expression
0...9 Numeric characters
Backspace
Erases the character before the cur-
sor
Clr Clear expression in editor Restart editing
e Math. constants, Euler number Euler number: 2.7182...
Mathematics
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