Test Plots - Agilent Technologies 8510XF Service Quick Reference Manual

Test Plots

NOTE
System Level Servicing & Troubleshooting
Power Level Check
Power level check (low RF power)
The RF source power level must be set so that the IF OVERLOAD running
error message is not activated when obtaining these graphs. The graphs
Figures 5-3 through 5-6 were obtained with the following settings:
1. Factory preset
2. Shorts connected to Ports 1 and 2
3. RF Source leveling: internal (no conversion loss calibration)
4. Disconnect the BNC cable from the millimeter-wave controller ALC
output to the RF Source ALC input.
5. LO Source leveling: system (default)
6. RF Source power: −10 dBm (default)
In order for no IF OVERLOAD running error message to occur, it may be
necessary to set the RF Source power level lower.
7. LO Source power: +10 dBm (default)
8. Response reference value: 0 dB (default)
9. Response reference position: 8 Div
5-10 8510XF Service Quick Reference Guide