HP 70427A User Manual page 427

Remote Programming Commands
Table 12-5 DOWNCONVERTER COMMANDS (HP 70427A only)
Command
DC:FREQ:BIAS n
DC:FREQ:BIAS?
DC:FREQ:YTF?
DC:FREQ:IF?
DC:FREQ:INP n
DC:FREQ:INP?
DC:FREQ:LO n
DC:FREQ:LO?
DDC:FREQ:LO:POW n
DC:FREQ:LO:POW?
DC:FREQ:MIX:BIAS n
DC:FREQ:MIX:BIAS?
DC:FREQ:MM:BAND n
DC:FREQ:MM:BAND?
12-6 HP 70427A/HP 70428A User's Guide
Function
Turns bias for an external
mixer on and off...
off: 0
on: 1
Returns the bias on | off status: 0,1
Returns the downconverter's YTF
frequency. (mm mode only).
Returns the IF frequency.
Sets the input frequency:
n= 4.9 MHz to 26.5 GHz (0.1 Hz
resolution)
or in mm mode, 17.9 GHz to 110.1
GHz
Returns the input frequency
setting.
Sets the LO frequency:
n= 2.4 GHz to 26.4 GHz, in 600
MHz steps
Returns the LO frequency setting.
Sets the LO power:
n= real, 0.0 to 20.0 dBm
Returns the LO power setting.
Sets the level of bias current
supplied to an external mixer (mm
mode only):
n= real, –10 to +10 mA
Returns the mixer bias current in
setting in mA.
Sets mm band (mm mode only)...
K band: n= 0
A band: n= 1
Q band: n= 2
U band: n= 3
V band: n= 4
W band: n= 5
Returns the mm band setting:
0,1,2,3,4,5
Equivalent Softkey or
Display
BIAS ON | OFF
LO:
IF:
INPUT FREQ
Input:
LO FREQ
LO: or mm LO:
LO POWER
Mixer LO
Power:
MIXER BIAS
mm Mixer
Bias:
mm Band