Tektronix RSA3408B, Service Manual

Page: 79 / 250

Performance Tests
RSA3408B Analyzer Service Manual
3- 47
2. Check residual response in the baseband:
a. Measure residual response:
H
Press Scale / Lines (front panel) > View Lines...
H
Press the Show Line side key to select Vertical .
H
Press the
Number Of Line
key to select
1
.
H
The Line1 menu item is selected by default.
Set the value to 1 MHz using the numeric keypad.
H
Press the Show Line side key to select Horizontal .
H
Press the
Number Of Line
key to select
1
.
H
The
Line1
menu item is selected by default.
Set the value to --93 dBm using the numeric keypad.
b. Check against limits:
Confirm that the residual signal level is --93 dBm or less at 1 MHz or
more.
3.
Check residual response in the RF1 band:
a.
Modify the analyzer controls:
H
Press the Frequency/Channel key on the front panel.
H
The Center Freq menu item is selected by default.
Set the frequency to 2 GHz using the numeric keypad.
H
Press the
Span
key on the front panel.
H
The Span menu item is selected by default.
Set the span to 3 GHz using the numeric keypad.
b. Measure residual response:
H
Press
Scale
/
Lines
(front panel) >
View Lines...
H
Press the Show Line side key to select Horizontal .
H
Press the
Number Of Line
key to select
1
.
H
The Line1 menu item is selected by default.
Set the value to --90 dBm using the numeric keypad.
c.
Check against limits:
Confirm that the residual signal level is --90 dBm or less.