Rohde & Schwarz SME02 - Phim Distortion Factor; Internal Modulation Generator

SME Test Procedure
1038.6002.02 5.27 E-13
5.2.30 PhiM Distortion Factor
Test equipment Test system 5.1.1.1
Measurement
À Settings at the SME
- Carrier frequency 1 GHz
- Level 0 dBm
- Select INT in the MODULATION/PM/PM1 SOURCE menu,
- Deviation 5 rad
- Modulation frequency 1 kHz.
À Read off the distortion factor at the modulation analyzer.
Distortion factor ..................................................................max. 1%
5.2.31 Internal Modulation Generator
Test equipment Audio analyzer (Section 5.1, Pos. 14)
Test setup Connect an audio analyzer to socket LF of the SME to test the internal
modulation generator.
Measurement À Settings at the SME
- Select LFGEN1 in the LF OUTPUT/SOURCE menu,
- Level 1 V.
- subsequently all 4 frequencies of the internal generator.
À Read off the actual frequency at the audio analyzer.
Deviation compared to the rated value......................................< 3%
À Read off output voltage at the audio analyzer.
Output voltage .................................... 990 to 1010 mV (peak value)