Rohde & Schwarz 1145.1010.04/05/06, Operating Manual

Page: 284 / 813

Channel Menu R&S
®
ZVA/ZVB/ZVT
1145.1084.12 4.122 E-6
•
Restart Average starts a new average cycle, clearing all previous results and thus eliminating
their effect on the new cycle. The new cycle is started as fast as possible; an ongoing sweep is
terminated immediately.
Remote control
(for RF off and averaging):
DIAGnostic:SERVice:RFPower
[SENSe<Ch>:]AVERage[:STATe] ON | OFF
[SENSe<Ch>:]AVERage:COUNt
[SENSe<Ch>:]AVERage:CLEar
Power
Opens the numeric entry bar to set the power of the internal signal source (channel power).
The channel power determines the output power at the test ports if a Frequency Sweep or a Time
Sweep is active; see info below. The setting has no effect in Power Sweep mode, where the source
power is varied over a continuous range .
The selected channel power applies to all source ports used in the active channel. Use the Port
Configuration dialog to modify the output power ranges for the individual analyzer ports.
Output power at the test ports
Power sets the output power at the test port that supplies the stimulus for the active channel. The
channel power can be varied over a wide dynamic range. This leaves enough flexibility to include an
attenuation or gain in the test setup.
The channel power can be modified by the following settings:
•
Generator step attenuators decrease the output power by a definite factor a
step
. a
step
can be set
individually for all test ports but does not change during a sweep.
•
The Receiver section of the Port Configuration dialog provides a port-specific constant power
offset (for arbitrary sweeps) and a port and frequency-dependent power slope factor (for
frequency sweeps).
•
A generator (source) power calibration generally modifies the channel power so that Power is
equal to the power at the calibrated reference plane.
Remote control: SOURce<Ch>:POWer[:LEVel][:IMMediate][:AMPlitude]
Receiver Step Attenuators
Opens a dialog to set the attenuation for the received waves. The generator attenuation is set
automatically; see Automatic generator attenuation below .