Rohde & Schwarz CMU 200 - RX Residual FM;AM; RX Dynamic; Average Noise Level

Manual Test Procedure R&S CMU
1100.4903.82 1.16 E-5
RX Residual FM/AM
Preparation: Test setup RX4,
Generator = f
iCMU
; level = –20 dBm.
Control:  Set R&S CMU to connector RF4 IN, Max Level = –20 dBm and to desired
frequency.
 Switch on frequency-selective power meter.
Test: The measurement is taken with an external FM/AM demodulation instrument (FSE
with FSE-B7) via the IF3RXCH1 BNC connector at the rear panel of the R&S CMU.
 Set the FSE to desired frequency, ref. level, AF filters.
RX Dynamic/ Average Noise Level
Preparation: No signal is fed in, R&S CMU generator is OFF.
Control: Set R&S CMU to given receive frequency, Max. Level, Bandwidth, Mode = Low
Noise.
Test: Use frequency-selective power meter, measurement bandwidth = 1 kHz / 500 kHz,
measured value in dB below reference level (Max. Level).