Rohde & Schwarz CMU 200 Service Manual

R&S CMU Manual Test Procedure
1100.4903.82 1.15 E-5
RX Harmonics
Preparation: Test setup RX3,
Generator = f
in
; level = 0 dBm.
Control:  Set R&S CMU to connector RF2, Max Level = 2 dBm.
Test:  The suppression of the signal at twice and three times the input frequency is
measured relative to the input signal.
Preparation:
Test setup RX3
Generator = f
i
n
; level = –2 dBm
Control:  Set R&S CMU to connector RF4 IN, Max Level = 0 dBm.
Test:  The suppression of the signal at twice and three times of input frequency is
measured relative to the input signal.
RX Spurious Response / Image Rejection
Preparation: Test setup RX3,
Generator = f
in
; level = 0 dBm.
Control:  Set R&S CMU to connector RF2, Max Level = 2 dBm, Mode = Low Distortion
Test:  The suppression of the spurious or image signal is measured relative to the
input signal.
Preparation:
Test setup RX3,
Generator = f
in
; level = –2 dBm.
Control:  Set R&S CMU to connector RF4 IN, Max level = 0 dBm, Mode = Low
Distortion
Test: The suppression of the spurious or image signal is measured relative to the input
signal.
RX SSB Phase Noise
Preparation: Test setup RX3,
Generator = f
iCMU
+ df ; level = 10 dBm.
Control:  Set R&S CMU to connector RF2, Max Level = 10 dBm and to desired
frequency.
 Switch on frequency-selective power meter.
Test: The measurement is taken with a small test bandwidth at different carrier offsets.
Note: The input level is +10 dBm, RBW = 100 Hz
 Phase noise = measured value –10 dB –21 dB.

Rohde & Schwarz CMU 200 Specifications

General

Brand	Rohde & Schwarz
Model	CMU 200
Category	Test Equipment
Language	English