R&S FSQ Signal Analyzer - Rohde & Schwarz

R&S FSQ Instrument Functions
GEN REF INT /
EXT
External Generator Control – Option R&S FSP-B10
If the offset is adjusted in a way that the sweep of the generator crosses the 0 Hz
Frequency, it is indicated by the additional statement “via 0 Hz”.
Example for reverse sweep via 0 Hz
FAnalyzerStart= 100 MHz
FAnalyzerStop = 200 MHz
FOffset = -150 MHz
Numerator = Denominator = 1
→ FGeneratorStart = 50 MHz
→ FGeneratorStop = 50 MHz via 0 Hz
Remote command: :SOUR:EXT:FREQ:NUM 1
:SOUR:EXT:FREQ:DEN 1
:SOUR:EXT:FREQ:OFFS -300MHZ
• RESULT
The frequency range of the generator resulting from the calculation formula. An
asterisk (*) after the upper limit indicates that the stop frequency of the R&S FSQ
must be adapted when the generator is switched on in order not to exceed its
maximum frequency. In the following illustration, this is true for the upper
generator at a stop frequency of 3.2 GHz of the R&S FSQ, whereas the lower
generator does not yet require an adaptation:
Remote command: SOUR:EXT:POW –30dBm
SOUR:EXT:FREQ:NUM 4
SOUR:EXT:FREQ:DEN 3
SOUR:EXT:FREQ:OFFS 100MHZ
The GEN REF INT / EXT softkey switches over the reference oscillator of the generator
(switch over between internal and external reference source). Selection EXT
allows connecting the external generator to an external reference frequency source.
The internal reference source is selected as the default setting.
Remote command: SOUR:EXT1:ROSC INT
Operating Manual 1313.9681.12 - 01 4.251