1
Getting Started
58
Keysight 53147A/148A/149A Operating and Programming Guide
Measuring Relative Power
You can measure the difference in power from one measurement to another (drift)
using the Relative Power function. You do this by pressing the
Shift
and
Rel Pwr
(
Offset On/Off
) keys, as shown in the diagram below (this example assumes that
a signal is currently applied to the Power Meter input connector).
The Power Meter stores the current power reading when you press the
Rel Pwr
key. It then subtracts this value from all subsequent readings and
displays the difference until you press the
Rel Pwr
key again.
Ch 2
Freq
Pwr
dBm
Shift
Shift
Ch 2
Freq
Pwr
dBm
Offset
On/Off
Rel Pwr
Ch 2
Freq
Rel Pwr
dB
Содержание 53147A
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