R&S FSL 1xEV-DO BTS Analyzer (Option K84)
1300.2519.12 4.381 E-11
General Results
Under General Results, the measurement results that concern the total signal or the entire
period of observation are displayed. The upper part of the result display shows the global
results, i.e. results for all channels:
– Carrier Frequency Error (absolute and relative)
Shows the frequency error referred to the center frequency. The absolute frequency error is the
sum of the frequency error of the analyzer and that of the device under test.
Differences of more than 4.0 kHz between transmitter and receiver frequency impair the
synchronization of the CDP measurement. If at all possible, the transmitter and the receiver
should be synchronized.
The unit of the frequency error is either Hz or ppm referred to the carrier frequency.
– Chip Rate Error
Shows the chip rate error (1.2288 Mcps) in ppm. A large chip rate error results in symbol errors
and, consequently, in possible synchronization errors for CDP measurements.
This measurement result is also valid if the analyzer was not able to synchronize onto the 1xEV–
DO signal.
– Trigger to Frame
This measurement result reproduces the timing offset from the beginning of the acquired signal
section until the start of the first slot. In case of triggered data acquisition, this corresponds to the
timing offset frame to trigger (+ trigger offset) until the start of the first slot. If the analyzer was
not able to synchronize onto the 1xEV–DO signal, the value of Trg to Frame is not meaningful.
For the Free Run trigger mode, dashes (–––) are displayed.
– RHO Pilot
Shows the quality parameter RHO for the pilot channel. According to the standard, RHO is
measured over all slots.
– RHO ov -1/2
Shows the quality parameter RHO for all chips and over all slots. According to the standard, the
averaging limit is on the half slot limit.
– RHO MAC
Shows the quality parameter RHO for the MAC channel
– RHO DATA
Shows the quality parameter RHO for the Data channel
The bottom part of General Results shows results specific to the selected slot:
– Power PILOT
Shows the absolute power of the Pilot channel in dBm.
– Power MAC
Shows the absolute power of the MAC channel in dBm.
– Power DATA
Shows the absolute power of the Pilot channel in dBm.
– Power PREAMBLE
Shows the absolute power of the Preamble channel in dBm.
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