Agilent Technologies 8648A Operation And Service Manual page 412

Performance Tests
8648B Test Record
Table 8-43. Pulse Modulation Rise Time Performance Test Option 1E6
Frequency
(MHz) Measured
1000
Table 8-44. Internal Timebase: Aging Rate Performance Test Option 1E5
Limits (kHz)
Lower Measured
8-94
Limits (ns)
Uncertainty
Upper
10
Upper
−10
/day
5 x 10
(±ns)
1
Uncertainty
(±Hz)
−11
±±5.6 x 10