Tektronix TekRanger 2 TFS3031, Service Manual

Page: 199 / 272

Performance Check – TekRanger 2 (serial nos. B052000 and above)
4–38
TFS3031 TekRanger/TekRanger 2 Service Manual
14. Select cursor A and move it to the start of the pulse. See figure 4–20.
Figure 4–20: Singlemode Attenuation Dead Zone
15. The attenuation dead zone is the distance difference between cursors A and
B, 22 m in this example.
16. Verify that the attenuation dead-zone measurement is equal to or less than
the specifications for the wavelength and pulse width being tested.