R&S FSL 1xEV-DO BTS Analyzer (Option K84)
1300.2519.12 4.369 E-11
Trigger Offset
For details refer to the Trigger Offset softkey in the trigger menu of the base unit.
Demod Settings
Opens the Demod Settings dialog box and corresponding softkey submenu.
In the Demod dialog box, the following parameters can be modified:
Revision 0 A
Multi Carrier On Off
Time Phase Estimation On Off
PN Offset
Revision 0 A
Specifies the characteristics of the signal you want to analyze. Select whether to analyze a
signal of Revision 0 or Revision A. For details on the characteristics of the revisions of the 1xEV-
DO standard refer to Channel Type Characteristics.
In revision A the number of active users increases. That means that the spreading factor
(number of orthogonal codes) doubles for channel types MAC and PREAMBLE.
The amount of returned trace data in the MAC and PREAMBLE channels is different for
Revision 0 and A, depending on the channel type and selected evaluation (see table above).
The R&S FSL detects all the channels on a per slot basis. Therefore the R&S FSL recognizes
changes in the channel configuration and modulation over the recorded slots.
In revision A the following modulation types are added within some of the MAC channels:
– ON/OFF keying ACK on the I branch (OOKA-I),
– ON/OFF keying ACK on the Q branch (OOKA-Q),
– ON/OFF keying NACK on the I branch (OOKN-I) and the
– ON/OFF keying NACK on the Q branch (OOKN-Q)
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