Rohde & Schwarz 1145.1010.04/05/06, Operating Manual

Page: 742 / 813

SOURce<Ch>:POWer... R&S
®
ZVA/ZVB/ZVT
1145.1084.12 6.280 E-6
SOURce<Ch>:POWer...
This subsystem controls the power of the internal signal source and provides output port settings.
Note: The SOURce<Ch>:POWer... subsystem comprises port-specific and general settings.
Port-specific settings are valid for the port specified by the numeric suffix
<Pt>
(...
:POWER<Pt>:
...). General settings are valid for all test ports of the analyzer; the port suffix is
ignored. Refer to the description of the individual commands for more information.
SOURce<Ch>:POWer<Pt>[:LEVel][:IMMediate][:AMPlitude] <numeric_value>
Defines the power of the internal signal source (channel power). The setting is valid for all sweep types
except power sweep.
Use
SOURce<Ch>:POWer<Pt>:STARt
and
SOURce<Ch>:POWer<Pt>:STOP
to define the
sweep range for a power sweep.
<Ch> Channel number.
<Pt> Test port number of the analyzer. This suffix is ignored because the
selected channel power applies to all source ports used in the
active channel. It is possible though to define a port-specific slope
factor for the source power
(
SOURce<Ch>:POWer<Pt>[:LEVel][:IMMediate]:SLOPe
).
Moreover, it is possible to define a port-specific power offset
(
SOURce<Ch>:POWer<Pt>[:LEVel][:IMMediate]:OFFSet
).
<numeric_value> Internal source power.
Range [def. unit] –40 dBm to +10 dBm. The exact range depends on the analyzer
model; refer to the data sheet [dBm]. UP and DOWN
increment/decrement the source power in 0.1-dB steps.
*RST value 0 dBm
SCPI, Command
Types Confirmed, command or query
Example:
FUNC "XFR:POW:RAT B1, A2"
Activate a frequency sweep and select the ratio B1/A2 as
measured parameter for channel and trace no. 1.
SOUR:POW -6
Set the internal source power for channel 1 to -6 dBm.
SOUR:POW2:SLOP 10
Set the power slope factor for the wave transmitted at port 2 to 10
dB/GHz. The internal source power and the waves at the other test
ports are not affected.