Rohde & Schwarz ZVB 4 - Checking the Frequency Uncertainty; Performance Test

Performance Test R&S ZVB
1145.1078.82 1.4 E–4
Performance Test
Compare with data sheet
Checking the Frequency Uncertainty
Instrument: Spectrum analyzer (see Chapter “Test Equipment“, Item1)
Test cable (see Chapter “Test Equipment“, Item7)
Test setup: Connect the spectrum analyzer to (port 2 to port 4)
Spectrum analyzer settings:
– [ PRESET ]
– [ FREQ : 1 GHz ]
– [ SPAN : 50 kHz ]
– [ BW : MANUAL RES BW : 10 kHz ]
– [ MARKER : MARKER MODE : FREQ COUNT ]
– [ AMPT : REF LEVEL : 10 dBm]
R&S
ZVB settings
– Select [System : Internal Reference]
– [ Preset ]
– [ Meas :Wave Quantities: a1 Src Port 1]
– [ Sweep : Sweep Type : CW Mode :
CW Frequency : 1 GHz; Power : 0 dBm]
– [ Sweep : Single : Restart]
Measurement: Read off the frequency indicated by the marker.
Frequency deviation = marker value – 1 GHz
Max. frequency deviation.............................. see Performance Test Report