R&S 1129.7246.03, Operating Manual

Page: 380 / 855

Operating Manual 1302.6163.12 - 03 4.349
R&S ESU Instrument Functions
External Generator Control – Option R&S FSP-B10
FREQUENCY
SWEEP
The FREQUENCY SWEEP softkey opens a table for setting the generator level as
well as the multiplier and the offset used to derive the generator frequency from the
analyzer frequency.
This table also permits configuration of two generators so that switching between
two different configurations is easily possible.
The individual fields contain the following settings:
• SRC
Index of selected generator
• STATE
Selects the active generator. Only one generator can be active at a time. The
operating mode of the active generator is set to remote control in the SELECT
GENERATOR table.
• POWER
Permits to enter the generator level within the limits P MIN to P MAX of the
SELECT GENERATOR table.
• NUM
Numerator,
• DEN
Denominator,
• OFFSET
Offset, used to derive the generator frequency from the current frequency of the
R&S ESU according to the following formula:
Note that the frequencies resulting from start and stop frequency of the R&S ESU
do not exceed the allowed generator range:
– If the start frequency lies below F MIN, the generator is only switched on when
F MIN is reached.
– If the stop frequency lies above F MAX, the generator is switched off. When
the generator is subsequently switched on using the EXT SRC ON/OFF
softkey, the stop frequency is limited to F MAX.
– If the stop frequency lies below F MIN, the generator is switched off and the
following error message output:
F
Generator
F
Analyzer
Numerator
Denominator
-----------------------------------
⋅
F
Offset
+ =