Tektronix 5441 Instruction Manual page 66

Performance Check Procedure-54411~5441
c. CHECK-For two 5 ns markers per division over the
center eight graticule divisions of the display (position as
necessary). Sweep accuracy is
k
6% over the entire sweep,
excluding the first 30 and the last 100 ns of the magnified
sweep.
d. Disconnect all cables.
REV MAY 1982