Rohde & Schwarz FSV3000, Руководство пользователя

Страница: 380 / 1489

Common measurement settings
R&S
®
FSVA3000/ R&S
®
FSV3000
380 User Manual 1178.8520.02 ─ 08
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 F
min
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 384
FRQ Frequency Offset (see "(Automatic) Source Frequency (Numerator/Denomi-
nator/Offset)" on page 385
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 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 379
"Ext. Generator File Syntax Error!" Syntax error in the generator setup file (see "Generator
setup files" on page 375
Data input and output