R&S FSMR3000, User Manual

Page: 128 / 733

Common Measurement Settings
R&S
®
FSMR3000
128 User Manual 1179.0116.02 ─ 02
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 126
"Ext. Generator File Syntax Error!" Syntax error in the generator setup file (see "Generator
Setup Files" on page 125
"Ext. Generator Command Error!" Missing or wrong command in the generator setup file
(see
"Generator Setup Files" on page 125
"Ext. Generator Visa Error!" Error with Visa driver provided with installation (very
unlikely)
Overloading
At a reference level of -10 dBm and at an external generator output level of the same
value, the R&S
FSMR3 operates without overrange reserve. That means the
R&S FSMR3 is in danger of being overloaded if a signal is applied whose amplitude is
higher than the reference line. In this case, either the message "RF OVLD" for over-
load or "IF OVLD" for exceeded display range (clipping of the trace at the upper dia-
gram border = overrange) is displayed in the status line.
Overloading can be avoided as follows:
●
Reducing the output level of the external generator ( "Source Power" on page 131
in "External Generator > Measurement Configuration")
7.2.4.3 External Generator Control Settings
Access : [INPUT/OUPUT] > "External Generator Config"
The "External Generator" settings are available if the R&S FSMR3 External Generator
Control option is installed. For each measurement channel, you can configure one
external generator. To switch between different configurations, define multiple mea-
surement channels.
For more information on external generator control, see Chapter 7.2.4.2, "Basics on
External Generator Control" , on page 120.
● Interface Configuration Settings ............................................................................128
● Measurement Settings .......................................................................................... 130
Interface Configuration Settings
Access : "Overview" > "Input" > "External Generator" > "Interface Configuration"
Input and Frontend