Table of Contents
Advertisement
Triggering CDMA Measurements In Remote Mode (GPIB Operation)
1. Select the desired trigger mode.
•
NOTE:
Since the default trigger mode for remote operation is Repetitive, as soon as the Test Set is put
into remote mode (a local-to-remote transition) the Test Set will begin to make measurements
whether a signal is present or not. If no signal is present, then signal processing error messages
will be displayed on the CRT of the Test Set.
NOTE:
CDMA measurements are not affected by the trigger mode settling parameter. CDMA
measurements are made with a digital signal processor (DSP) which does not require the
settling times associated with analog hardware circuitry.
GPIB Syntax
"TRIG:MODE:RETR REP"
"TRIG:MODE:RETR SING" !selects Single retriggering mode.
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
Triggering CDMA Measurements In Remote Mode (GPIB Operation)
Retriggering
•
Repetitive - Once a measurement cycle has completed the Test Set is automat-
ically re-triggered and another measurement cycle begins.
When the trigger mode is set to repetitive retriggering, consecutive queries of the
same measurement return new measured values.
•
Single - Once a measurement cycle has completed the Test Set requires a GPIB
trigger command be received to begin a new measurement cycle.
When the trigger mode is set to single retriggering, consecutive queries of the
same measurement (with no intervening trigger) will return the same value. Mea-
surements that rely on external signals or hardware-generated events (such as Traf-
fic Rho) must be re-armed with a new trigger before another measurement can be
made.
!selects Repetitive retriggering mode.
Chapter 3, Operating Overview
85
Advertisement
Table of Contents
