Keysight Technologies Infiniium MSOV 084A, Руководство по обслуживанию

Страница: 41 / 164

Testing Performance
3
Infiniium V-Series Oscilloscopes Service Guide 41
Record this value in the Calculated Gain @50 MHz column in the Analog
Bandwidth—Maximum Frequency Check section of the Performance Test
Record.
11
Change the generator frequency to the maximum value for the model being
tested as shown in the table below. It is not necessary to adjust the signal
amplitude at this point in the procedure.
12
Change the oscilloscope horizontal scale to the value for the model under test
in the preceding table.
13
Measure the input power to the oscilloscope channel at the maximum
frequency and convert this measurement to Volts RMS using the expression:
For example, if the power meter reading is 4.0 μ W, then Vin = (4.0*10
-6
*
50
Ω
)
1/2
= 14.1 mVrms.
Record the RMS voltage in the Analog Bandwidth—Maximum Frequency Check
section of the Performance Test Record (Vin @ Max Freq).
14
Press [Clear Display] on the oscilloscope and record the scope V rms reading in
the Analog Bandwidth—Maximum Frequency Check section of the Performance
Test Record (Vout @ Max Freq).
Gain
50
MHz
V
out
@50 MHz
V
in
@50 MHz
---------------------------------- =
Setting Model
DSOV084A
DSAV084A
MSOV084A
DSOV134A
DSAV134A
MSOV134A
DSOV164A
DSAV164A
MSOV164A
DSOV204A
DSAV204A
MSOV204A
DSOV254A
DSAV254A
MSOV254A
DSOV334A
DSAV334A
MSOV334A
Maximum
Frequency
8 GHz 13 GHz 16 GHz 20 GHz 25 GHz 32 GHz
Scope Horizontal
Scale
50 ps/div 50 ps/div 50 ps/div 50 ps/div 50 ps/div 50 ps/div
Enter horizontal scale
V
in
P
meas
50
Ω ×
=