82 Keysight Infiniium MXR-Series Real-Time Oscilloscopes User's Guide
6 Testing Performance
7 Set the generator to apply a 50 MHz sine wave with a peak-to-peak amplitude
of about four divisions.
Use the following table to determine the approximate required signal
amplitude.
The amplitude values in the table are not absolutely required. If your generator
is unable to produce the recommended amplitude, then set the generator to
the highest value that does not produce a vertically clipped signal on the
oscilloscope.
8 Measure the input power to the oscilloscope channel and convert this
measurement to Volts RMS using the expression:
For example, if the power meter reading is 4.0 μW, then Vin = (4.0*10-6 *
50 Ω)1/2 = 14.1 mVrms.
Record the RMS voltage in Table 11 of the Performance Test Record (in the Vin
@ 50 MHz column).
9 Press [Clear Display] on the oscilloscope and record the scope V rms reading in
Table 11 of the Performance Test Record (Vout @ 50 MHz column).
Table 4 Nominal Generator Amplitude Settings
Oscilloscope Vertical Scale Generator Signal Amplitude
(Vp-p)
Generator Signal Amplitude
(dBm)
5 mV/div 0.02 -30
10 mV/div 0.04 -24
20 mV/div 0.08 -18
50 mV/div 0.20 -10
100 mV/div 0.40 -4
200 mV/div 0.80 +2
500 mV/div 2.0 +10
1V/div 4.0 +16
• For all oscilloscope readings in this procedure, use the mean value in the Measurement Results
area at the bottom of the screen.
• If a question mark appears in front of any value at the bottom of the screen, press [Clear Display]
on the oscilloscope, wait for the number of averages to return to 16, and then record the
oscilloscope reading.
To Next Page
Loading...
Need help?
General
