8360 Series Coupler To Bridge Detector; Workaround - Agilent Technologies 8510C Service Quick Reference Manual

Instrument Compatibility

8360 Series Coupler to Bridge Detector

8360 Series Coupler to Bridge Detector
All 8510B/C systems when used with an 8360 series source that have a bridge detector
inside will potentially cause an over-modulation running error message. If your 8510C has
Rev.7.0 or greater, an RF unleveled caution message will also be displayed.
Agilent Model
83620
83622
83630
83650
83621
83631
83651
83623
83624

Workaround

Increase your source power and use test set attenuators, or use a source that has a coupler
in its leveling loop. The problem is caused by dc switching spikes from the test set RF pin
diode switch getting back into the sources leveling loop and causing an unleveled
condition. If this is not satisfactory, there are three upgrade kits available: the 8514B
/8515A /85110A (08510-60119), 8517B (08510-60118), and the 85110L (08510-60121) test
sets. The upgrade kit will eliminate the RF switching spikes from getting back into the
source leveling loop by installing a dc return between the RF input and RF pin diode
switch inside the test set. Contact an Agilent engineer for installation of these kits.
2-4
Coupler to Detector Conversion Prefix
Prefix equal to and greater than 3245A
Prefix equal to and greater than 3245A
Prefix equal to and greater than 3245A
Prefix equal to and greater than 3245A
Prefix equal to and greater than 3139A
Prefix equal to and greater than 3139A
Prefix equal to and greater than 3139A
Couplers only
Couplers only
Determination
will cause problem
will cause problem
will cause problem
will cause problem
will cause problem
will cause problem
will cause problem
will not cause problem
will not cause problem
8510C Service Quick Reference Guide