HP 70427A User Manual page 290

Freqs
This softkey displays a menu softkeys for setting the downconverter's
frequency. The softkeys are:
INPUT FREQ
LO FREQ
LO Power
MODE μW|mm
Path
Freqs
HP-IB command
For downconverting input signals below 26.5 GHz, the MODE μW softkey
must have μW underlined. In this mode, only the input frequency must be
entered softkey). The downconverter's firmware computes and
(INPUT FREQ
displays the LO frequency and uses a factory default LO power.
For downconverting signals up to 110 GHz, the
have mm underlined. In this mode the following additional softkeys will be
displayed:
mm Band
Mixer Bias
BIAS ON|OFF
In this mode, the mm band must be selected and the frequency of the
external mixer's input signal must be entered.
Softkeys and Displays
None.
MODE μW|mm
HP 70427A/HP 70428A User's Guide 10-47
Freqs
softkey must