Wide Band Analog If Assembly Filter Path Test - Agilent Technologies PSA Series Service Manual

Wide Band Analog IF Assembly Filter Path Test

This routine allows you to use the WB Align (f=300 MHz) comb cal
signal to view the filter response of the 80 MHz filter path and the 36
MHz filter paths. Also the ADC dither signal response can be seen
allowing you to determine if the dither signal is present.
The following diagnostic routine requires entering the password
protected Service menus.
1. Press
2. Enter the service password
3.
4.
5.
6.
7.
8.
9.
The PSA display now shows the filter response of the 80 MHz filter
path in the Wideband Analog IF assembly. The Dither signal can be
seen on the far left hand side of the filter response. See
Figure 8-6 80 MHz Filter Response
10.Press
Chapter 8
,
System More More Service
Service
Meas Setup
Wide Band Setup
Wide Band Advanced, More
All Freq Pts On
Span 100 MHz
RBW 150 kHz
Return
Verifying Option 122 or 140, Wide Bandwidth Digitizer
and press
-49 Enter
Hardware Options
Figure 8-6.
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