Agilent Technologies E4418B, User Manual

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2 Power Meter Operation
86 E4418B Power Meter User’s Guide
Recorder Output
The rear panel Recorder Output connector produces a DC voltage that
corresponds to the power level in Watts of the channel, depending on the
measurement mode. This DC voltage ranges from 0 to +1 Vdc. The output
impedance is typically 1 kW . Channel and display offsets and duty cycle
have no effect on the Recorder Output.
For example, the Recorder Output can be used to;
• record swept measurements on an X- Y recorder
• level an output from a source using external leveling or
• monitor the output power on a strip chart recorder. A setup for
recording swept measurements is shown in
Figure 2- 20 .
See Figure 2- 22 for details on which power meter functions are
implemented in the recorder output.
Figure 2-20 Test Setup for Recording Swept Measurements
To access the “Recorder” menu, press , , .
This menu allows you to switch the Recorder Output signal either on or
off. The
and softkeys allow you to enter the input
power level that you want to represent the 1 Vdc maximum and 0 Vdc
minimum output voltage of the Recorder Output.
Device
Power Meter
CHANNEL A
INPUT
OUT
X-Y Recorder
Swept Source
Under Test
IN RF OUT
SWEEP
OUT
X-AXIS (FREQUENCY) Y-AXIS (POWER)
RECORDER
OUTPUT
Recorder Output
Max Power Min Power