
4-15
Performance Tests
6. Test Port Input Noise Floor Level
5Repeat the test, but select the B sampler (A6)  by pressing MEAS, INPUT PORTS, 
B in Step 2. Use the following specifications: 
300 kHz to 3 GHz  < –27 dBm 
3 GHz to 6 GHz  < –22 dBm 
6If the analyzer fails the test, replace the A11 assembly. 
7Verify that the high/low band adjustments are still within specifications. For 
more information on how to perform this task, refer to the Agilent 8753D 
Service Guide. 
8Refer to the Agilent8753D Service Guide for more troubleshooting 
information. 
6. Test Port Input Noise Floor LevelPerform this test to determine the Agilent 8702D port 1 and port 2 noise floor 
levels at the input test ports. 
Required 
Equipment 
For 50Ω Analyzers 
Calibration Kit, 7 mm  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Agilent 85031B
For 75Ω Analyzers 
Calibration Kit, Type-N   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Agilent 85036B
Procedure Port 1 Noise Floor Level from 50 kHz to 3 GHz (IF BW= 3 kHz) 
1Connect the equipment as shown in Figure 4-9. 
Figure4-9. Source Input Noise Floor Test Setup