Boonton 4500B Peak Power Meter - Manual (Page 188)

Boonton 4500B RF Peak Power Analyzer
Operation 4-116
NOTE The Channel 1 and Channel 2 voltage readings are derived by converting power to equivalent voltage.
Since power is non-polar, the derived voltage will always have positive polarity. Also, the average power
of a signal converted to voltage is not identical to the average voltage of that signal.
The External Trigger 1 and External Trigger 2 signals are always voltages and may be positive and
negative (bipolar). This must be taken into account when interpreting the ―Avg‖ parameter. For example, a
rectangular 50% duty cycle bipolar trigger signal will have an ―Avg‖ value near zero volts, but a
rectangular 50% duty cycle power waveform converted to volts will have and ―Avg‖ value near 70.7% of
the Pulse average voltage
.
Table 4-58. Pulse Mode – Automatic Measurements II
EXT TRIG 1&2
Name (Voltage Units)
Width
Pulse width
Rise Pulse risetime
Fall Pulse falltime
Period Pulse Period
PRFreq Pulse repetition frequency
Duty C Pulse duty cycle
OffTime Pulse offtime
Peak Peak positive voltage
Pulse Pulse average voltage
Oversh Pulse overshoot (voltage ratio)
Avg Average voltage of pulse period
Top Pulse top level voltage
Bot Pulse bottom level voltage
Skew ----
EdgeDly Edge delay - time from left edge of
display to first mesial edge of either
slope on the displayed waveform