Agilent Technologies 3000 Series, User'S And Service Manual, Page: 141 / 156

Service 8
Agilent 3000 Series Oscilloscopes User’s Guide 141
16 Using the Vpp reading, calculate the Vrms value using the following
expression and record it in the
“Performance Test Record” on page 144:
For example, if Vpp = 1.20 V:
17 Using the power meter reading, convert this measurement to Volts RMS
using the expression and record it in the
“Performance Test Record” on
page 144:
For example, if Pmeas = 3.65 mW:
Figure 61 Signal Generator Waveform
Vpp reading
Vout
1 MHz
Vpp
1 MHz
2 2
-----------------------
=
Vout
1 MHz
1.20
2 2
----------
1.20
2.828
-------------
424 mV
= = =
Vin
1 MHz
P
meas
50
Ω ×
=
Vin
1 MHz
3.65 mW 50
Ω ×
427 mV
= =