Keysight E6610A, User And Programming Manual

Page: 86 / 108

12 SCPI Command Reference
RF TX output.
The LTE airframe tick is a trigger signal that is
transmitted every 10 ms that indicates the start of the
LTE airframe. This signal is available as the Trigger
output on the E6610A's rear panel BNC connector.
The value entered is in ms with values between -10 to
+10 ms.
SOURce<1|2>:RADio:ARB:TRIGger? Queries the trigger delay setting for the selected
RF TX output. Result is in ms.
SOURce<1|2>:RADio:ARB:TMODel
[TM11]|TM31|FRCA3|<file_name> Selects the waveform for playback on the specified
RF TX output. Waveform may be one of the test
models provided in the LTE applications (TM 1.1, TM
3.1, FRC-A3), or the user can provide the name of a
CSV or Signal Studio-generated file. A user-supplied
file must be installed in the E6610A's baseband
memory before it can be used.
SOURce<1|2>:RADio:ARB:TMODel? Queries the name of the test model or waveform file that is
selected for playback on the specified RF TX output.
SOURce<1|2>:RADio:ARB:WAVEform? Queries the name of the waveform file that is selected for
playback on the specified RF TX output. No result is returned
if the selected waveform is not a user-supplied waveform file.
This user-supplied file must be installed in the E6610A's base-
band memory before it can be used.
SOURce<1|2>:RADio:ARB:STATe
ON|OFF|1|0 Sets the arbitrary waveform generator's state for the
selected RF TX output. In order to playback a
modulated signal, the arbitrary waveform generator
must be turned on using this command. In addition,
playback will not actually start until the master
playback state is enabled using the command
SOURce:PLAYback:STATe ON. This command will
initiate playback from any playback sources that have
been individually enabled. See the playback enabling
process described for the SOURce:PLAYback:STATe
command below for more details.
SOURce<1|2>:RADio:ARB:STATe? Returns the on/off state of the selected RF TX arbitrary wave-
form generator.
SOURce<1|2>:CPRI:ARB:TRIGger
<value in ms> This command is used to set the trigger delay for the
selected CPRI TX channel, to control when the
playback starts with respect to the LTE airframe tick.
This provides compensation for any propagation delay
in the optical fiber or the RRH circuitry.
The LTE airframe tick is a trigger signal that is
transmitted every 10 ms that indicates the start of the
LTE airframe. This signal is available as the Trigger
output on the E6610A's rear panel BNC connector.
The value entered is in ms with values between -10 to
+10 ms.
86 Keysight E6610A User and Programming Guide