Instrument Function
R&S
®
SMU200A
210Operating Manual 1007.9845.32 ─ 15
"External Cou-
pled A -> B"
(the parameter is enabled for two-path instruments only)
An external signal is input on the LO IN connector and used for the cou-
pled paths A and B (see also chapter 5.5.5.2, "Typical Applications",
on page 207).
Note: Selection of LO Coupling External "Coupled A->B "mode, disables
all parameters in the "Frequency/Phase/Ref Osc" menu of both paths.
SCPI command:
[:SOURce<hw>]:FREQuency:LOSCillator:MODE on page 711
Out State - LO Coupling
Switches on/off the LO output.
"On"
The internal local oscillator signal is also available on the LO OUT con-
nector (in order to couple two instruments).
"Off"
The LO OUT signal is switched off.
SCPI command:
[:SOURce<hw>]:FREQuency:LOSCillator:OUTPut:STATe on page 712
5.5.6 NRP-Z Power Viewer
Up to three R&S NRP power sensors can be connected to the generator. The SENSOR
connector for the first R&S NRP power sensor is on the front panel, a second and third
R&S NRP power sensor can be connected via the USB interfaces (front and rear panel,
requires USB adapter R&S NRP-Z3 or R&S NRP-Z4). The connected R&S NRP power
sensors are automatically detected and indicated in the "NRP-Z Power Viewer" menu.
The output signals of the RF signal path (reference level is the set RF level) or any freely
selectable source can be measured.
The average signal power is continuously measured by the R&S NRP power sensor(s)
and indicated in the Power Sensors menu ("NRP-Z Power Viewer"). Permanent display
of the measurement results in the block diagram can be activated.
RF Signal and Analog Modulations - RF Block
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