39. Displayed Average Noise Level, HP 8591EM
1.5 GHz to 1.8 GHz
22. Press the following EMC analyzer keys:
4AUTO COUPLE5 IF BW AUTO MAN (AUTO) AVG BW AUTO MAN (AUTO)
4SPAN5 10 4MHz5
4SWEEP/TRIG5 SWEEP CONT SGL (CONT)
4FREQUENCY5 START FREQ 1.5 4GHz5 STOP FREQ 1.8 4GHz5
23.Repeat steps 15 through 20 above for frequencies from 1.5 GHz to 1.8 GHz.
If the Displayed Average Noise at 1.8 GHz is at or out of specication, it is recommended that a known frequency source be used as a frequency marker. This ensures that testing is within 1.8 GHz.
24.Record the display line amplitude setting as TR Entry 4 of the performance verication test record. The average noise level should be less than the specied limit.
Table
Frequency | Measurement | TR Entry | ||
Range |
| Frequency | (Displayed Average | |
|
|
|
| Noise Level) |
400 kHz |
| 400 kHz |
| |
| 1 | |||
1 MHz |
| 1 MHz |
| |
| 2 | |||
1 MHz to 1.5 GHz |
|
|
|
|
|
|
| 3 | |
|
|
| ||
1.5 GHz to 1.8 GHz |
|
|
| 4 |
|
|
| ||