
QM1004-8-12-100 Combined RF Upconverter/Downconverter
User Manual
1.2 FREQuency Subsystem
Table 4.2:
FREQuency Subsystem Commands Summary
Command
Page
Description
Sets or Returns the reference divider of the LO1s for
both channels.
Sets or Returns whether the internal or external sup-
plied LO1 local oscillator is used for both channels.
Returns the lock status of the internal LO1s for both
channels.
Sets or Returns the PLL Mode (
Integer
or
Fractional
)
of the internal LO1 for both channels.
Sets or Returns whether the internal or external sup-
plied LO2 local oscillator is used for both channels.
Returns the lock status of the internal LO2 for the sys-
tem.
Returns the lock status of the internal LOs for both
channels.
Sets or Returns whether the internal or external sup-
plied reference oscillator is used.
Sets or Returns the reference frequency when using
an externally-supplied reference.
Returns the lock status for the incoming external refer-
ence signal and the outgoing references.
Sets or Returns the desired tuning frequency in GHz
for both channels.
Returns the actual tuning frequency in GHz for both
channels.
1.3 POWEr Subsystem
Table 4.3:
POWEr Subsystem Commands Summary
Command
Page
Description
Sets or Returns the value of RF attenuation for channel
1 (upconverter).
Sets or Returns the value of RF attenuation for channel
2 (downconverter).
Turns on or off the upconverter LNA gain stage of the
device.
Quonset Microwave
Revision 2.0.0
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