Command Descriptions
2–228
TDS Family Oscilloscope Programmer Manual
BURst
is the time from the first MidRef crossing to the last MidRef crossing.
CARea
(cycle area) is the area between the curve and ground over one cycle.
CMEan
is the arithmetic mean over one cycle.
CRMs
is the true Root Mean Square voltage over one cycle.
DELay
is the time between the MidRef crossings of two different waveforms.
EXTINCTDB
(TDS 500C and 700C) is 10.0 * log
10
(Extinction Ratio)
EXTINCTPCT
(TDS 500C and 700C) is 100/Extinction Ratio
EXTINCTRATIO
(TDS 500C and 700C) is High/Low
FALL
is the time that it takes for the falling edge of a pulse to fall from a HighRef
value to a LowRef value of its final value.
FREQuency
is the reciprocal of the period measured in hertz.
HIGH
is the 100% reference level.
HITs
(TDS 500C and 700C) displays the number of acquired point within or on
the histogram box.
LOW
is the 0% reference level.
MAXimum
is the highest amplitude (voltage).
MEAN
for general purpose measurements, is the arithmetic mean over the entire
waveform. For histogram measurements, it is the average of all acquired points
within or on the histogram box.
MEANDBM
(TDS 500C and 700C) is 10 * log
10
(MEAN/0.001) a value equal to
MEDian
(TDS 500C and 700C) is the median of all acquired points within or on
the histogram box. Half of the acquired points are greater than and half less than
this value.
MINImum
is the lowest amplitude (voltage).
NDUty
is the ratio of the negative pulse width to the signal period expressed as a
percentage.
NOVershoot
is the negative overshoot, expressed as:
NOVershoot
100
(Low
Minimum)
Amplitude
NWIdth
is the distance (time) between MidRef (usually 50%) amplitude points of
a negative pulse.