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Using user-defined limit lines via the remote-control interface with options GSM
BTS ANALYZER and GSM MS ANALYZER, Options FSE-K10 and FSE-K11
If user-defined limit lines are to be remote-controlled in applications K10/K11, the following should be
observed:
•
Limit lines can be created with the commands of the basic unit (CALC:LIM subsystem). Lines
created in such a way are available as limit line files in the unit and cannot be distinguished from the
"normal" limit lines.
•
A user-defined limit line should meet certain criteria (example: Frequency Domain should be
selected for the transient spectrum measurement of K11) so that it can be used for a specific
K10/K11 measurement. If an attempt is made to activate a non-compatible line, the unit returns the
error message "-221, settings conflict".
•
K10/K11 measurements require either no limit line or one (spurious, transient spectrum, modulation
spectrum) or two limit lines (power vs time measurement). To ensure that measurements are
performed as expected, select and activate at least the required number of limit lines (commands
CALC1:LIM1:NAM and CALC1:LIM1:STATE) when using user-defined limit lines. It is not possible
to activate a user-defined limit line, e.g. in the power vs time measurement, and then assume that
the application will automatically select the second line to standard.
•
Suffix 1 is always to be used for measurements with one line: CALC1:LIM1 !
•
For measurements with two lines, suffix 1 is to be used for lower limits and suffix 2 for upper limits.
•
After selection and activation of the required number of limit lines, it is possible to activate the use of
user-defined lines with command CONF:BTS:LIM:STAN OFF (K11) or CONF:MS:LIM:STAN OFF
(K10).
•
It is recommended not to use the names of lines for the limit line standard (e.g. DC_BNL and
DC_BNU) as names of user-defined limit lines in order to make the query of limit line characteristics
unambiguous.
Programming Example:
A Comment line starts with <//>
// Start FSE-K11 (eg GSM1800, Phase 1).
CONF:BTS:NETW GSM1800
CONF:BTS:NETW:PHAS 1
//Select Power vs. Time (PVT) measurement and perform measurement
//with standard limit lines; query results
CONF:BURS:PTEM
INIT:CONT OFF
INIT
*OPC?
CALC:LIM:BURS:PTEM?
1065.6000.30
K
E-23
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