PMX40 RF Power Meter – INSTRUCTION MANUAL
5-7
Fall
Falltime
The interval between the last signal crossing of the distal line to the last
signal crossing of the proximal line.
Period
Pulse Period
The interval between two successive pulses (reciprocal of the Pulse
Repetition Frequency).
PRFreq
Pulse Repetition The number of cycles of a repetitive signal that take place in one
Frequency
second.
Duty C
Duty Cycle
The ratio of the pulse on-time to off-time.
Offtime
Off-time
The time a repetitive pulse is off (equal to the pulse period minus the
pulse width).
Peak
Peak Power
The maximum power level of the captured waveform.
Pulse
Pulse Power
The average power level across the pulse width, defined by the
intersection of the pulse rising and falling edges with the mesial line.
Oversh
Overshoot
A distortion following a major transition (the difference between the
maximum amplitude of the overshoot and the top line).
Avg
Average Power
The equivalent heating effect of a signal.
IEEETop
Top Amplitude
The amplitude of the top line (see IEEE definitions).
IEEEBot
Bottom Amplitude The amplitude of the base line (see IEEE definitions).
Skew
Skew
The time between the mesial level of a pulse on one channel and a
pulse on a second channel.
EdgeDly
Edge Delay
The time between the left edge of the display and the first mesial
transition level of either slope on the waveform.
5.3.3
Automatic Measurement Sequence
The automatic measurement process analyzes the captured signal data in the following sequence:
1.
Approximately 500 samples of the waveform (equivalent to one screen width) are scanned to
determine the maximum and minimum sample amplitudes.
2.
The difference between the maximum and minimum sample values is calculated and stored as
the Signal Amplitude.
3.
The Transition Threshold is computed as one-half the sum of the maximum and minimum
sample amplitudes.
4.
The processor locates each crossing of the Transition Threshold.
