58. Tracking Generator Feedthrough, HP 8591EM Option 010

12.Press 4AUX/USER5, Track Gen , SRC PWR ON OFF (ON), and enter 107 4dB￿V5.

13.Press 4SGL SWP5, then wait for completion of a new sweep. Press 4DISPLAY5,

DSP LINE ON OFF (ON).

14.Adjust the display line so that it is centered on the average trace noise, ignoring any residual responses. Record the display line amplitude setting in Table 2-76 as the noise level at 1 MHz.

15.Repeat steps 13 and 14 for the remaining Tracking Generator Output Frequencies (EMC analyzer center frequency) listed in Table 2-76.

16.In Table 2-76, locate the most positive Noise Level Amplitude. Record this amplitude as TR Entry 1 of the performance veri￿cation test record.

Table 2-76. TG Feedthrough Worksheet

Tracking Generator

Noise Level

Output Frequency

Amplitude

 

(dB￿V)

 

 

1MHz

20 MHz

50 MHz

100MHz

250MHz

400MHz

550MHz

700MHz

Tracking Generator

Noise Level

Output Frequency

Amplitude

 

(dB￿V)

 

 

850MHz

1000 MHz

1150 MHz

1300 MHz

1450 MHz

1600 MHz

1750 MHz

2-370 Performance Veri￿cation Tests