44. Residual Responses, HP 8591EM
3.Press 4SGL SWP5 and wait for a new sweep to nish. Look for any residual responses at or above the display line.
If a residual is suspected, press 4SGL SWP5 again. A residual response will persist on successive sweeps, but a noise peak will not. Note the frequency and amplitude of any residual responses above the display line and to the right of the marker in Table
1 MHz to 1.8 GHz
4.Connect the 300 MHz CAL OUT to the RF INPUT.
5.Press 4PRESET5 on the EMC analyzer, then wait for the preset routine to nish. Press the following keys:
4FREQUENCY5 300 4MHz5
4SPAN5 10 4MHz5
4MKR !5 MKR ! HIGH
4MKR5 More 1 of 3 MK TRACK ON OFF (ON)
4SPAN5 1 4kHz5
6.Wait for the AUTO ZOOM message to disappear, then press the following EMC analyzer keys:
4BW5 300 4Hz5
4SWEEP/TRIG5 1 4sec5
4AMPLITUDE5 87 4dBV5
ATTEN AUTO MAN (MAN) 0 4dB5
7. Press the following EMC analyzer keys:
4SGL SWP5
4MKR !5 MKR ! HIGH More 1 of 3 More 2 of 3 MARKER 1
4SPAN5 10 4MHz5
4SGL SWP5
4MKR !5 MKR ! HIGH
8. Record the
MEAS UNCAL Amplitude Error |
| dB |
9. Remove the calibration cable from the EMC analyzer input.
Performance Verication Tests