HP 70427A User Manual page 307

Softkeys and Displays
INPUT ATTEN
INPUT ATTEN
This softkey allows entry of the downconverter's input attenuation setting.
The range is 0 dB to 35 dB in 5 dB steps. The default setting is 35 dB.
Path
Amplitudes more 1 of 2 INPUT ATTEN
This softkey is not available when the downconverter is in mm mode.
HP-IB command attenuation
DC:AMPL:INP:ATT
Where attenuation is an integer: 0,5,10,15,20,25,30,35.
Figure 10-48 HP 70427A
10-64 HP 70427A/HP 70428A User's Guide