User`s guide

2-52
GPIB Tutorial and Examples
Transient Settling Times
2. The following operations may affect how much wait time is needed between GPIB or
IBASIC commands.
a) IBASIC operation - especially tight query loops
b) Continuous measurements
i. DSP Analyzer - Phase, Amplitude and Data Bits measurements
ii. Output RF Spectrum measurements Option 006 only
iii. Pulse On/Off Ratio measurements Option 006 only
iv. Spectrum Analyzer measurements Option 006 only
v. Oscilloscope measurements
vi. CW measurements
vii. AF Analyzer measurements
c) Signaling operations:
i. SACCH measurements
ii. Intercell Handovers
iii. Intracell Handovers
iv. Trace views are active
3. When performing the following operations, include a wait statement for a maximum of
the period of time given, before issuing the next command.
a) Executing Loopback functions - loopback on and off: 1 second
OUTPUT 714,”CELL:AUD:LOOP:OFF” ! loopback off
WAIT 1
OUTPUT 714,”CELL:AUD:LOOP:FE” ! on with frame erasure
WAIT 1
OUTPUT 714,”CELL:AUD:LOOP:NOFE” ! on without frame erasure
WAIT 1
b) Changing Audio Speech Configurations to ’ECHO’: 0.5 second
OUTPUT 714,”CELL:AUD:SPE:CONF ’ECHO’
WAIT 0.5
c) Changing Audio Speech Configurations to ’PRBS’: 2 seconds
OUTPUT 714,”CELL:AUD:SPE:CONF ’PRBS’
WAIT 2
d) Setting the MS TX power Level: 1 second
OUTPUT 714,”CELL:MS:TLEV 7”
WAIT 1