SMIQ Fading Simulation
1125.5555.03 2.73 E-9
2.9.4.1 Menu STANDARD FADING
The settings for fading simulation can be accessed via the FADING SIM menu.
Menu selection: FADING SIM
Fig. 2-39 Menu STANDARD FADING (two Fading Simulators installed)
CONFIGURATION
Switching on fading simulation by selection of the number of active paths and
channels.
1CH_6P One channel with 6 paths (with option SMIQB14)
1CH_12P One channel with 12 paths (with SMIQB14 and SMIQB15)
2CH_6+6 Two channels with 6 paths each (with SMIQB14 and SMIQB15)
IEC/IEEE-bus command SOUR:FSIM:CONF S12P
SOUR:FSIM ON
MODE
Stopping (STOP) and starting (RUN) the fading process.
Following RESET the mode RUN starts the Pseudo Noise Generator at a
defined starting point for generating the fading process.
IEC/IEEE-bus command SOUR:FSIM:SEQ RUN
RESET
Resetting the Pseudo Noise Generator.
If RESET is set, the parameter MODE is automatically set to STOP. RESET
also ensures a synchronization of the two fading options during 2-channel
mode with the correlation switched on.
IEC/IEEE-bus command :SOUR:FSIM:SEQ:RES
IGNORE RF
CHANGES < 5%
In the ON state, frequency variations below 5% are ignored. This enables RF
hopping faster than 3 ms. IEC/IEEE-bus command
:SOUR:FSIM:IGN:RFCH ON
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