Keysight 9000 Series Service Manual page 41

Chapter 3: Testing Performance
16 Change the scope setup as follows:
a Change the channel vertical scale to 10 mV/div.
b Reset the horizontal scale to 16 ns/div (to display 8 cycles of a 50 MHz waveform).
17 Change the generator output as follows:
a Reset the generator frequency to 50 MHz.
b Change the amplitude to the value suggested for this scale setting in Table 3-1.
18 Repeat steps 8, 9, and 10 to measure the reference gain at 50 MHz for this scale.
19 Repeat steps 11, 12, 13, and 14 to measure the gain at maximum frequency for this scale.
20 Repeat steps 15 to 19 to complete measuring gains for remaining scale settings for channel 1 in the
Analog Bandwidth - Maximum Frequency Check section of the Performance Test Record.
21 Move the splitter to channel 2 and change the scope configuration as follows:
• Ensure Channel 2 is displayed and all other channels are turned off.
• Set the vertical scale of channel 2 to 5 mV/div.
• Set the horizontal scale to 16 ns/div (to display 8 cycles of a 50 MHz waveform).
• Right click on the V rms measurement at the bottom of the screen. When the RMS voltage
measurement setup window appears, change the source from Channel 1 to Channel 2.
22 Repeat steps 7 to 20 to complete measuring gains for channel 2.
23 Move the splitter to channel 3 and change the scope configuration as follows:
a Ensure Channel 3 is displayed and all other channels are turned off.
b Set the vertical scale of channel 3 to 5 mV/div.
c Set the horizontal scale to 16 ns/div (to display 8 cycles of a 50 MHz waveform).
d Click on the V rms measurement at the bottom of the screen and select Customize. When the V
rms setup window appears, change the source from Channel 2 to Channel 3.
24 Repeat steps 7 to 20 to complete measuring gains for channel 3.
25 Move the splitter to channel 4 and change the scope configuration as follows.
a Ensure Channel 4 is displayed and all other channels are turned off.
b Set the vertical scale of channel 4 to 5 mV/div.
c Set the horizontal scale to 16 ns/div (to display 8 cycles of a 50 MHz waveform).
d Click on the V rms measurement at the bottom of the screen. When the V rms setup window
appears, change the source from Channel 3 to Channel 4.
26 Repeat steps 7 to 20 to complete measuring gains for channel 4.
Analog Bandwidth -
Maximum Frequency Check
41