R&S FSL 1xEV-DO BTS Analyzer (Option K84)
1300.2519.12 4.387 E-11
Code Domain Error
Selects the Code Domain Error Power (CDEP) result display.
This result display shows the difference in power between measured and ideally generated
reference signals for each code in dB. Since it is an error power, active and inactive channels
can be rated jointly at a glance. The total signal is taken into account over a single slot. The
error power is determined and plotted in a diagram. In this diagram, the x–axis represents the
code number, which depends on the channel type. The y–axis is a logarithmic level axis that
shows the power of each code. To configure this result display, use the Result Settings dialog
box (Settings softkey menu, Result Settings softkey).
The power values of the assigned and unassigned codes are displayed in different colors:
– Yellow: assigned code
– Cyan: unassigned code
Remote: CALC:FEED "XTIM:CDP"
Symbol Constellation
Selects the Symbol Constellation result display.
The measurement shows the constellation of the modulated signals of the selected code against
the channel type and slot (see Select Code Slot and Channel Type). Supported modulation
schemes are BPSK, QPSK, 8PSK and 16QAM. Unassigned codes can be measured, but the
result is meaningless since these do not contain data.
The BPSK constellation points are displayed on the x-axis, while the constellation points of
QPSK and 16QAM are located on neither axis.
Remote: CALC:FEED "XTIM:CDP:SYMB:CONS"
To Next Page
Loading...
