Instrument Function
R&S
®
SMB100A
134Operating Manual 1407.0806.32 ─ 13
Delay Time
Defines a waiting period between the level adjustment of the generator and the next
measurement of the power sensor.
With this parameter, you compensate any dead times in the controlled system.
Remote command:
[:SOURce<hw>]:POWer:SPC:DELay on page 346
Use Peak Power
Activates control by means of the peak power values, provided the power sensor supports
this function. Otherwise, the dialog does not show this parameter.
Remote command:
[:SOURce<hw>]:POWer:SPC:PEAK on page 346
Use SParameter - Power Sensors
Activates the use of the S-Parameter correction data of the connected power sensor. For
sensors with attenuator this checkbox is automatically checked.
Refer to the manual of the connected R&S NRP-Zxx power sensor for a description on
how to use the SParameter table.
Remote command:
:SENSe<ch>[:POWer]:CORRection:SPDevice:STATe on page 280
5.3.5.6 User Correction
The "User Correction" function is used to create and activate lists in which level correction
values predefined by the user are freely assigned to RF frequencies. Correction is per-
formed by the user-defined table values being added to the output level for the respective
RF frequency.
With frequencies which are not contained in the list, the level correction is determined by
interpolation of the closest correction values.
The lists are created in the "List Editor". Each list is stored in its own file with the predefined
file extension *. uco. The name of the User Correction file can be freely selected. The
files are loaded from the "Lists..." file manager. Externally created tables with pairs of
frequency and level values can be converted into User Correction files using the import
function. The external files must have the file extension *.txt or *.csv. These file
formats are provided e.g. by the Microsoft Excel program. The separators for table col-
umns and for decimal floating-point numerals can be set. In addition, internally created
User Correction data can be exported into ASCII files using the export function.
The amplitude can also be linearized automatically by means of an R&S NRP power
sensor connected to one of the generator output signals. With the aid of the "Fill with
Sensor" function, a table with correction values for external test assemblies can be auto-
matically determined, e.g. for compensating the frequency response of cables. The User
Correction list with the correction values acquired by the sensor is generated in the "Edit
User Correction List" menu. The correction values can be acquired any time irrespective
of the modulation settings of the generator.
RF Block
To Next Page
Loading...
