Tektronix 1503C, User Manual, Page: 96 / 128

Appendis B: Operator Performance Checks
B–4
1503C MTDR User Manual
O
F
F
O
F
F
O
F
F
O
N
bat 50600.00 ft
Figure B–5: Flatline Display Out to 50,0000+ Feet
If the instrument fails this test, it can be used, but should be serviced when possible.
Not all of the waveforms will be viewable at all gain settings.
1. Using the
n
o
POSITION control, verify that the entire waveform can be moved
to the very top of the display (off the graticule area).
O
F
F
O
F
F
O
F
F
O
N
bat 50600.00 ft
Waveform
off display
Figure B–6: Waveform Off the Top of the Display
2. Using the
n
o
POSITION control, verify that the entire waveform can be moved
to the very bottom of the display (to the bottom graticule line).
O
F
F
O
F
F
O
F
F
O
N
bat 50600.00 ft
Waveform
Figure B–7: Waveform at the Bottom of the Display
2. Vertical Position
(Offset) Check