Tektronix TekRanger 2 TFS3031, Service Manual

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Performance Check – TekRanger 2 (serial nos. B052000 and above)
TFS3031 TekRanger/TekRanger 2 Service Manual
4–43
14. Press the
SELECT
button to select the cursor function, then use the arrow
keys to position cursor A at the rising edge of the end reflection. See figure
4–24.
Figure 4–24: Singlemode Reflectance Check
15. Check the reflectance value displayed on the instrument at the top of the
screen. This value should be -40 dB
±
4 dB.
16. Repeat steps 3 through 15 for 1310 if option 06 or 10.