Technical data

1Service
28 Agilent 1000A Series Oscilloscopes Service Guide
For example, if Pmeas = 3.65 mW:
23 Calculate the gain at the maximum frequency using the expression and
record it in the “Performance Test Record” on page 35:
For example, if (Vout @ Max Frequency) = 371 mV, (Vin @ Max
Frequency) = 427 mV and Gain @ 1 MHz = 0.993, then:
Record this value in the Calculated Gain @Max Freq column in the
Analog Bandwidth - Maximum Frequency Check section of the
“Performance Test Record” on page 35. To pass this test, this value
must be greater than -3.0 dB.
24 For the remaining channels, move the power splitter to the channel and
repeat steps 4 through 23.
Vin
max
3.65 mW 50Ω× 427 mV==
Gain
max
20 log
10
Vout
max
()Vin
max
()⁄
Gain
1MHz
----------------------------------------------------------
=
Gain
Max Freq
20 log
10
371 mV 427 mV ⁄
0.993
--------------------------------------------
-1.16 dB==