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LO (Downconverter)
This display shows the downconverter's local oscillator's frequency. The LO
frequency is computed when an input frequency is entered, or you can enter
it with the
When an input frequency less than 1.5 GHz is entered, the
show a series of rectangles instead of a number. This is because the mixer is
bypassed, and the input signal is passed through the input attenuator to the IF
amplifier.
In mm mode, the
generated LO frequency.
PATH
HP-IB command
Returns a real number. In mm mode the HP-IB command is:
Figure 10-53
HP 70427A
softkey.
LO FREQ
display shows the harmonic mixer's internally
LO:
Freqs
or,
Amplitudes
or,
Ref Chain
DC:FREQ:LO?
DC:FREQ:YTF?
HP 70427A/HP 70428A User's Guide 10-73
Softkeys and Displays
LO (Downconverter)
display will
LO:
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