47. Fast Time Domain Sweeps, HP 8591EM Option 101 and Option 301
7.Press 4PRESET5 on the EMC analyzer, then wait for the preset routine to nish. Press the following EMC analyzer keys:
4FREQUENCY5 300 4MHz5
4SPAN5 ZERO SPAN
4AMPLITUDE5 SCALE LOG LIN (LIN)
8.Set the signal generator AM switch to the AC position. If necessary, adjust the output amplitude of the signal generator to position the top of the modulated waveform approximately one division below top screen.
9.Set the EMC analyzer controls by pressing the following keys:
4SWEEP/TRIG5 Trigger VIDEO
4SWEEP/TRIG5 18 4ms5
10. Press the following EMC analyzer keys:
4SGL SWP5
4MKR !5 MKR ! HIGH
If necessary, press NEXT PEAK or NEXT PK LEFT until the marker is on the
11.Press More 1 of 3 More 2 of 3 MARKER 1 , MARKER 1 , then press
NEXT PK RIGHT until the marker 1 is on the eighth signal.
12.Record the MKR 1 frequency reading in the performance test record as shown in Table
13.Repeat steps 10 through 12 for the remaining sweep time settings listed in Table