R&S SMB Procedures after Module Replacement
1407.0806.82 2.3 E-5
External Level Correction
External level correction measures output power over frequency and level and stores the correction
values inside the instrument to maintain level accuracy. The R&S SMB provides a build in measuring
procedure for external level correction.
NOTICE
R
isk of damage to the power sensor
Power sensor NRP-Z91 can be damaged when being exposed to R&S SMBs
maximum output power. So it is recommendet to PRESET the instrument
before connecting the power sensor. The build-in level correction procedure
does not overload the sensor.
Adjustment
Test equipment
R&S NRP-Z91 or R&S NRP-Z92 power sensor with NRP-Z3 or
NRP-Z4 USB adaptor
Test setup
Power on instrument
Setting on instrument:
PRESET
Setup Menu
Reference Oscillator
Source INTERNAL
Protection
Protection Level 2 = 147946 ENTER
Connect the power sensor to the RF plug and to the USB
connector of the instrument.
Allow the R&S SMB and the power sensor to warm up for at least
20 minutes
Adjustment Setting on instrument:
Setup Menu
Internal Adjustments
Adjust Ext Level…
ECEXUTE
Adjustment Data CUSTOM
Note that the R&S factory level correction data is not replaced
by this procedure, instead an additional data set is created.
The active correction data set is selected by the setting
“Adjustment data”
To Next Page
Loading...
