Service manual

Remote Commands for WLAN TX Measurements
R&S
®
FSV-K91/91n/91ac/91p
177Operating Manual 1176.7649.02 ─ 04
Manual operation: See "Run Single/Cont" on page 110
INITiate<n>[:IMMediate]
The command initiates a new measurement sequence.
With sweep count > 0 or average count > 0, this means a restart of the indicated num-
ber of measurements. With trace functions MAXHold, MINHold and AVERage, the pre-
vious results are reset on restarting the measurement.
In single sweep mode, you can synchronize to the end of the measurement with *OPC,
*OPC? or *WAI. In continuous sweep mode, synchronization to the end of the mea-
surement is not possible. Thus, it is not recommended that you use continuous sweep
mode in remote control, as results like trace data or markers are only valid after a sin-
gle sweep end synchronization.
Suffix:
<n>
.
irrelevant
Example:
INIT:CONT OFF
Switches to single sweep mode.
DISP:WIND:TRAC:MODE AVER
Switches on trace averaging.
SWE:COUN 20
Setting the sweep counter to 20 sweeps.
INIT;*WAI
Starts the measurement and waits for the end of the 20 sweeps.
Mode: all
Manual operation: See "Capture" on page 96
5.11 INPut Subsystem
INPut:ATTenuation <Value>
This command programs the input attenuator. To protect the input mixer against dam-
age from overloads, the setting 0 dB can be obtained by entering numerals, not by
using the DOWN command.
The attenuation can be set in 5 dB steps (with option R&S FSV-B25: 1 dB steps). If the
defined reference level cannot be set for the set RF attenuation, the reference level is
adjusted accordingly.
In the default state with "Spectrum" mode, the attenuation set on the step attenuator is
coupled to the reference level of the instrument. If the attenuation is programmed
directly, the coupling to the reference level is switched off.
This function is not available if the R&S Digital I/Q Interface (R&S FSV-B17) is active.
Parameters:
<Value> *RST: 10 dB (AUTO is set to ON)
INPut Subsystem