Service Guide 3-9
8719ET/20ET/22ET Adjustments and Correction Constants
8719ES/20ES/22ES IF Step Correction Constants (Test 47)
RF Network Analyzers
IF Step Correction Constants (Test 47)
These correction constants compensate for IF amplifier linearity difference between gain
stages.
Required Equipment and Tools
Analyzer warmup time: 30 minutes.
1. Make sure the A7 Switch is in the alter position (ALT).
2. Press the following:
Follow the instructions on the display.
3. Observe the analyzer for the results of the adjustment routine:
If the message IF Step Cor DONE is displayed, you have completed this procedure.
4. If no more correction constant routines are going to be performed, return the A7 Switch
to the NRM position and perform the “EEPROM Backup Disk Procedure,” on page 3-33.
In Case of Difficulty
• If the message CAUTION:TROUBLE! CHECK SETUP AND START OVER is displayed, check
that the RF cable is connected from PORT 1 to PORT 2 (REFLECTION port and
TRANSMISSION port on the ET models). Then repeat this adjustment routine.
• If the analyzer continues to fail the adjustment routine, refer to Chapter 6 , “Digital
Control Troubleshooting,” or contact the nearest Agilent Technologies sales or service
office.
Equipment Description 8719ET/ES 8720ET/ES 8722ET/ES
HP/Agilent RF cable 85131F 85133F
HP/Agilent RF open
part number
85052-60009
part number
85052-60023
HP/Agilent RF fixed attenuator
8493C
Option 010,006,020
8490D
Option 010,006,020
Preset
Preset
System
47 x1
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