Instrument Function
R&S
®
SMU200A
209Operating Manual 1007.9845.32 ─ 15
"External"
An external signal is used.
In case of a two-path instrument, the internal local oscillator signal is used
for path B.
Note: Selection of LO Coupling "External" mode, disables all parameters
in the "Frequency/Phase/Ref Osc" menu.
In case of two-path instrument, this affects the same path.
"Coupled A ->
B"
(the parameter is enabled for two-path instruments only)
The local oscillator signal of path A is used also for path B (see also
section chapter 5.5.5.2, "Typical Applications", on page 207).
Note:
Selection of LO Coupling Coupled A->B mode, disables all param-
eters in the Frequency/Phase/Ref Osc menu of the other path.The fre-
quency of path A will be set to the smaller of both frequencies of path A
and B.
RF Signal and Analog Modulations - RF Block