DGP01448AAA
6-00
5-10
GSS7725 Interference Generator User Manual
© Spirent Communications plc 2002-2017
User action file
(*.act)
Interference file
(*.itf)
Mode of operation
present
(contains interferer
commands)
none
Replays the User actions file commands
present
(contains interferer
commands)
present
Replays both User action file commands AND
interference file commands
present
(does not contain
interferer commands)
none
Interactive interference mode (the User actions file
does not affect the interactive interference mode)
present
(does not contain
interferer commands)
present
Replays the interference file commands
5.5 Remote control interference commands
Interference commands can be actioned remotely. Reference b) outlines the syntax for sending
remote interference commands to SimGEN
to operate the GSS7725. The remote commands are
also briefly outlined below for convenience.
Table 5-2 GSS7725 SimGEN
remote commands
Command
Description
<timestamp>,
Custom Waveform 7725
,
<vehicle>,
<antenna>,
<channel>,
<reference_level>,
<level>,
<check_level>,
<file_name>,
<centre_frequency_hz>,
<sample_frequency_mhz>,
<target_frequency_mhz>,
<clock_type>,
<endianness>,
<rf_on_off>
Describes the waveform file to be output and optionally also turns on
the RF. An example would be:
00:00:10, Custom Waveform 7725, 1, 1, 1, -130, 50, on,
“0x4000.bin”, 1.009, 4, 12.5, External, Big, on
This would issue a command at 10 seconds in to the scenario run for
vehicle 1, antenna 1, channel 1 using the IQ file “0x4000.bin” it would
output an RF signal at L1, at -80 dBm, using a target sample rate of
12.5 MS/s and expecting the IQ file to be stored at the 4 MS/s sample
rate.
Where:
<timestamp>
::= time in to run specified by: [d]
hh:mm:ss
<vehicle>
::= integer starting at 1
<antenna>
::= integer starting at 1
<channel>
::= integer starting at 1
<reference_level>
::= integer in dB i.e. -130
<level>
::= integer in dB
level above reference i.e. 110 would
set the
level to -20 dBm, -130 + 110 = -20
<check_level>
::= “on” | “off”
<file_name>
::= quoted string i.e. “0x4000.bin”
<centre_frequency_hz>
::= integer or scientific representation of
centre
Frequency i.e. 1.009
