Rohde & Schwarz ESRP Series, Руководство пользователя

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Tracking Generator
R&S
®
ESRP
461 User Manual 1175.7445.02 ─ 08
●
If the stop frequency lies above F MAX, the generator is switched off. When the
generator is subsequently switched on using the
"Source RF Internal (On/ Off)"
on page 448 softkey, the stop frequency is limited to F MAX.
●
If the stop frequency lies below F MIN, the generator is switched off and an error
message is displayed.
Remote command:
SOURce<n>:EXTernal<generator>:FREQuency[:FACTor]:NUMerator
on page 877
SOURce<n>:EXTernal<generator>:FREQuency[:FACTor]:DENominator
on page 877
SOURce<n>:EXTernal<generator>:FREQuency:OFFSet<m>
on page 878
Reverse sweep
The "Offset" setting can be used to sweep in the reverse direction. You can do this by
setting a "negative" offset in the tracking generator configuration.
Example for reverse sweep:
F
AnalyzerStart
= 100 MHz
F
AnalyzerStop
= 200 MHz
F
Offset
= -300 MHz
Numerator = Denominator = 1
→
F
GeneratorStart
= 200 MHz
→
F
GeneratorStop
= 100 MHz
If the offset is adjusted so that the sweep of the generator crosses the minimum gener-
ator frequency, a message is displayed in the status bar ("Reverse Sweep via min. Ext.
Generator Frequency!").
Example for reverse sweep via minimum frequency:
F
AnalyzerStart
= 100 MHz
F
AnalyzerStop
= 200 MHz
F
Offset
= -150 MHz
F
min
= 20 MHz
Numerator = Denominator = 1
→
F
GeneratorStart
= 50 MHz
→
F
GeneratorStop
= 50 MHz via Fmin
Result Frequency Start
For reference only: The start frequency for the generator, calculated from the config-
ured generator frequency and the start value defined for the analyzer.
Result Frequency Stop
For reference only: The stop frequency for the generator, calculated from the config-
ured generator frequency and the stop value defined for the analyzer.
Type
Generator type. See also Chapter 8.2.1, "Overview of Generators Supported by the
R&S ESRP" , on page 453.
Remote command:
SYSTem:COMMunicate:RDEVice:GENerator<generator>:TYPE
on page 882
Configuring Tracking Generators