Technical data

2-4 8510C Service Quick Reference Guide

Instrument Compatibility

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.

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.

Agilent Model Coupler to Detector Conversion Prefix Determination

83620 Prefix equal to and greater than 3245A will cause problem

83622 Prefix equal to and greater than 3245A will cause problem

83630 Prefix equal to and greater than 3245A will cause problem

83650 Prefix equal to and greater than 3245A will cause problem

83621 Prefix equal to and greater than 3139A will cause problem

83631 Prefix equal to and greater than 3139A will cause problem

83651 Prefix equal to and greater than 3139A will cause problem

83623 Couplers only will not cause problem

83624 Couplers only will not cause problem