Tektronix TekRanger 2 TFS3031, Руководство по обслуживанию

Страница: 156 / 272

Performance Check – TekRanger (serial nos. below B052000)
TFS3031 TekRanger/TekRanger 2 Service Manual
3–23
11. Push the softkey to again select the first cursor as the
active cursor.
12. Position the active cursor on the steepest part of the rising edge of the pulse
of the event in question.
13. The Cursor A–B reading at top screen is the attenuation dead zone.
14. Position the two cursors so they are 1.5 dB down from the peak of the
reflection on either side of the pulse.
15. The Cursor A–B reading at top screen is the event dead zone.
16. Repeat steps 4 through 15 with a Pulsewidth setup of 20 m.
17. Disconnect the singlemode dead-zone test fixture.