Rohde & Schwarz CMU200 Service Manual

CMU Measuring Instruments and Auxiliary Equipment
1100.4903.82 1.3 E–4
Test Setups
The quality of the test setup has an effect on the measurement procedures.
Note: Make sure to use only high-quality coax cables and coax connectors as well as calibrated
measuring equipment.
Reference Frequencies
Test setup REF1:
DUT
(CMU)
Spectrum
Analyzer
(FSE
or
FSIQ)
10 MHz Reference Freq.
RF3 OUT
REF1
GEN
REFIN
Test setup REF2:
DUT
(CMU)
Spectrum
Analyzer
(FSE or
FSIQ)
10 MHz Reference Freq.
REF OUT 2
REF2
REF IN
TX Level Measurements
Test setup TX1, TX2, TX3, TX4 (depending on level range):
½ Normalize spectrum analyzer (FSIQ) to wideband power meter (NRVD) at Max. Level setting of the
CMU (test setups TX1, TX2, TX3).
The attenuator of the spectrum analyzer must be held at this position over 60 dB.
½ Normalize spectrum analyzer with preamplifier to spectrum analyzer at last level (test setups TX3,
TX4).
The attenuator of the spectrum analyzer must be held at this position over 60 dB.
DUT
(CMU)
NRV-Z51
NRVD
.. +5 dBm
TX1
RF3OUT

Rohde & Schwarz CMU200 Specifications

General

Brand	Rohde & Schwarz
Model	CMU200
Category	Test Equipment
Language	English