HP 10430A Operating Note page 21

HP 10400A OPERATING NOTE
3. Set oscilloscope input terminations for:
Channel A.High Impedance
Channel B........50-ohms
NOTE
For oscilloscopes with 1 M-ohm
impedances only, use a 50-ohm
feedthrough termination.
4. Connect equipment as in figure 6.
5. Adjust oscilloscope for highest sensitivity
(lowest vertical range).
OSCILLOSCOPE
(HP 1250-1454)
Figure 6. Fligh-frequency Compensation
Test Set-up