Operating Manual EMI TEST RECEIVER ESIB7 - Rohde & Schwarz

ESIB Maintenance
8 Maintenance and Instrument Interfaces
The following chapter contains information on the maintenance of the ESIB and on the instrument
interfaces.
The address of our support center and a list of all Rohde & Schwarz service centers can be found at the
beginning of this manual.
Maintenance
Mechanical Maintenance
The ESIB does not require any mechanical maintenance. The front panel can be cleaned from time to
time using a damp, soft cloth.
Electrical Maintenance
Testing the Level Measuring Accuracy
Due to the total calibration facility by means of the built-in calibration generator, high long-term stability
of the level measuring characteristics is guaranteed. It is recommended to check the measuring
accuracy every two years according to the performance test. Reprogramming of the correction data by a
R&S servicing shop is necessary, if tolerances are exceeded.
Testing the Frequency Accuracy
The frequency accuracy of the reference oscillator is to be checked once a year according to section 5.
It is not necessary to perform this test if the instrument is operated using an external reference.
Test utility:
Test setup:
Frequency counter of signal generator
Measurement with frequency counter
Connect frequency counter to the REF OUT/IN socket at the rear of the
instrument.
Measurement with signal generator
Apply signal with 1GHz, -10dBm to RFin.
Measurement: Settings on ESIB: MODE ANALYZER
[CENTER 1000 MHz]
[SPAN 0 MHz]
[REF REF LEVEL -10 dBm]
[MARKER COUNT ON
COUNTER RESOL 0.1 Hz]
Activate internal frequency counter (marker function)
1088.7531.12 8.1 E-16