Agilent Technologies Infiniium 80000 Series Service Manual page 59

Chapter 4: Testing Performance
Analog Bandwidth - Maximum Frequency Check
Press the Clear Display key on the scope and record the scope V rms reading in the
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Analog Bandwidth - Maximum Frequency Check section of the Performance Test
Record (Vout @ 50 MHz). For all scope readings in this procedure, use the mean value
in the Measurements display area at the bottom of the screen.
Notes
Record the
mean reading
Calculate the reference gain as follows:
10
Record this value in the Calculated Gain @50 MHz column in the Analog Bandwidth - Maximum
Frequency Check section of the Performance Test Record.
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• For all scope readings in this procedure, use the mean value in the Measurements display area at the
bottom of the screen.
• If a question mark is displayed in front of any of the values at the bottom of the screen, press the Clear
Display key on the scope, wait for the #Avgs value to return to 16 and then record the scope reading.
Gain =
50 MHz
V
out @50 MHz
------------------------------ -
V
in @50 MHz