SMIQ
Digital Standard GSM/EDGE
1125.5555.03
E-9
2.307
EXECUTE
TRIGGER
Executes a trigger even to start the GSM signal generation.
IEC/IEEE-bus command
:TRIG:DM:IMM
TRIGGER...
Opens a window for selecting the trigger source, for configuring the trigger
output signals and for setting the time delay of an external trigger signal.
Fig. 2-197
Menu DIGITAL STD - GSM/EDGE_TRIGGER..., SMIQ equipped with Modulation Coder
SMIQB20 and Data Generator SMIQB11
(TRIGGER...)
TRIGGER SOURCE
Selection of trigger source.
EXT
The GSM signal generation is started by
the active slope of an external trigger
signal.
The polarity, the trigger threshold and
the input resistance of the TRIGIN input
can be modified in menu
DIGITAL MOD - EXT INPUTS.
INT
A trigger event can be executed by
EXECUTE TRIGGER .
IEC/IEEE-bus
SOUR:GSM:TRIG:SOUR EXT
EXT TRIGGER
DELAY
Setting the number of symbols by which an external
trigger signal is delayed before it starts the GSM
signal generation.
This is used for setting the time synchronization
between the SMIQ and the DUT.
IEC/IEEE-bus
SOUR:GSM:TRIG:DEL 3
(TRIGGER...)
EXT RETRIGGER
INHIBIT
Setting the number of symbols for which a restart is
inhibited after a trigger event.
With TRIGGER MODE RETRIG selected, each new
trigger signal restarts the GSM signal generation.
This restart can be inhibited for the entered number
of symbols.
Example:
The entry of 1000 symbols causes new trigger
signals to be ignored for the duration of 1000 sym-
bols after a trigger event
IEC/IEEE-bus
SOUR:GSM:TRIG:INH 1000
