CDMA2000 BTS Analyzer (Option K82) R&S FSL
1300.2519.12 4.314 E-11
M
ulti Carrier (Demod Settings dialog box)
Activates or deactivates the Multi Carrier mode. The mode improves the processing of multi
carrier signals. It allows the measurement on one carrier out of a multi carrier signal. This is
done by activating a low pass filter and by using a special algorithm for signal detection on multi
carrier signals.
Note that the low pass filter affects the measured signal quality (e.g. EVM and RHO) compared
to a measurement without a filter. The algorithm used for signal detection slightly increases the
calculation time.
The frequency response of the low pass filter is shown below.
0 0.1 0. 2 0. 3 0.4 0.5 0.6 0.7 0.8 0.9 1
-70
-60
-50
-40
-30
-20
-10
0
Frequency response of low pass filter (Multi Carrier = On)
Frequency in MHz
|H(f)| in dB
Remote: CONF:CDP:MCAR ON
Time/Phase Estimation (Demod Settings dialog box)
Actives or deactivates the timing and phase offset calculation of the channels as to the pilot
channel. If deactivated or more than 50 active channels are in the signal, the calculation does
not take place and dashes instead of values are displayed as results.
Remote: CDP:TPM ON
PN Offset (Demod Settings dialog box)
Specifies the PN (Pseudo Noise) offset of the base station, which is used to distinguish the base
stations within a CDMA2000 system.
The PN offset determines the offset in the circulating PN sequence in multiples of 64 chips with
reference to the event second clock trigger.
Although the parameter is always available, it only has a function in External trigger mode.
Remote: CDP:PNOF 0...511
To Next Page
Loading...
