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GSS7725 Interference Generator User Manual
© Spirent Communications plc 2002-2017
Figure 11 Command type - Interference Custom Waveform 7725
Action time
Set the days and time into the scenario you want to apply the
Command type
Vehicle
Antenna
Vehicle number for the command, default 1
Antenna number for the command, default 1
Channel
The interference channel number. Default: 1.
RF on
If this is ticked then when all the parameters have been set, turn on
the RF output of the interference.
Check level
Selected: (default) Enables “Invalid power” checking. SimGEN
determines if Level+Reference Level exceeds -20 dBm and
prevents entry of Level and Reference Level after clicking
Deselected: SimGEN allows entry of any value of Level+Reference
Level as determined by the total ranges of Level and Reference
Level
Notes:
1) Select Check so that SimGEN determines if:
(Level + Reference Level) is less than -130.0 dBm
(Level + Reference Level) exceeds -20.0 dBm
Level
Power level from reference -120 dBm
Range: 0 to 100
Step size: 1 dB
Interference Power (dBm) = (Reference Level + Level)
Reference level
Type the reference level you want to use.
Default -130 dBm
Note
: In Interference Fixed Level Mode and GPS Fixed Level Mode,
when you set Reference Level equal to the GPS received signal
Reference Level, the data entered in Level directly equates to the
J/S ratio.
Centre frequency
Centre frequency that the IQ signal is to be produced around, default is L1
(1575.42 MHz)
