Rohde & Schwarz FSW Series, User Manual

Page: 46 / 371

Measurement Basics
R&S
®
FSW-K7
46 User Manual 1173.9240.02 ─ 17
Example: 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
4.7.4.8 Displayed Information and Errors
Channel bar
If external generator control is active, some additional information is displayed in the
channel bar.
Label Description
EXT TG: <source power> External generator active; signal sent with <source power> level
LVL Power Offset (see "Source Offset" on page 76
FRQ Frequency Offset (see "(Automatic) Source Frequency (Numerator/Denomi-
nator/Offset)" on page 77
NOR Normalization on;
No difference between reference setting and measurement
APX (approximation) Normalization on;
Deviation from the reference setting occurs
- Aborted normalization or no calibration performed yet
Error and status messages
The following status and error messages may occur during external generator control.
Message Description
"Ext. Generator GPIB Handshake Error!" /
"Ext. Generator TCPIP Handshake Error!" /
"Ext. Generator TTL Handshake Error!"
Connection to the generator is not possible, e.g. due to a
cable damage or loose connection or wrong address.
"Ext. Generator Limits Exceeded!" The allowed frequency or power ranges for the generator
were exceeded.
"Reverse Sweep via min. Ext. Generator Fre-
quency!" Reverse sweep is performed; frequencies are reduced to
the minimum frequency, then increased again; see
"Reverse sweep" on page 45
"Ext. Generator File Syntax Error!" Syntax error in the generator setup file (see chap-
ter 4.7.4.3, "Generator Setup Files" , on page 40
Receiving Data Input and Providing Data Output