Rohde & Schwarz FSP3 - Checking Frequency Modulation

Performance Test R&S FSP
1164.4556.82 1.26 E-1
Checking Frequency Modulation
Test equipment:
- Arbitrary waveform generator (refer to "Measurement Equipment",
item 16)
- Spectrum analyzer (refer to "Measurement Equipment", item 15)
- 2 voltmeters (refer to "Measurement Equipment", item 17)
- 2 BNC T pieces
Test setup with R&S ADS:  Apply the I and Q outputs of ADS to the I and Q inputs of the
analyzer. Check the ADS voltages in parallel via T pieces.
 Connect spectrum analyzer to the TG output.
Test setup with 33220A:  Apply the outputs of 33220A to the I and Q inputs of the analyzer.
Check the 33220A-
voltages in parallel via T pieces.
Synchronize the two 33220A via Option 001.
 Connect spectrum analyzer to the TG output.
Generator settings:
 AC voltage: V(pp) = 100 mV ± 10 mV
Frequency: 100 kHz
Spectrum analyzer settings:
- [ FREQUENCY : 1 GHz ]
- [ SPAN : 100 MHz ]
- [ BW : 1 MHz ]
- [ REF : REF LEVEL : 0 dBm ]
R&S FSP settings:
- [ FREQUENCY : 1 GHz ]
- [ SPAN : 0 MHz ]
- [ REF : REF LEVEL : 0 dBm ]
- [ NETWORK : SOURCE POWER 0 dBm ]
- [ MODULATION EXT FM ]
Measurement: Determination of the peak spacing = 2 x DEVIATION