R&S FSH Digital Modulation Analyzer
Measurements on GSM Signals
Operating Manual 1173.6275.12 - 30 254
BSIC (NCC, BCC)
Shows the way you have selected to determine the training sequence.
In case of manual selection, the field shows the actual number of the training
sequence. In case of automatic selection, the field shows an "Auto" label.
For more information see "Selecting the Training Sequence" on page 259.
Slot #
Shows the way you have selected to determine the slot that is analyzed.
In case of manual selection, the field shows the actual number of the selected slot. In
case of automatic selection, the field shows an "Auto" label.
9.3.1.2 Global Results
Global results contain various measurement results of the composite signal. These
results evaluate the total signal over the period of one slot.
RF Channel Power
Total power of the signal in dBm in the 200 kHz bandwidth around the center
frequency.
Burst Power
Shows the signal power in the first time slot (or burst) that has been found.
Carrier Frequency Error
Shows the frequency error in relation to the current center frequency of the R&S FSH.
For more information see "Selecting the Unit of the Carrier Frequency Error" on page
259.
Concerning uncertainty of the reference frequency of the GPS receiver, refer to the
data sheet.
C/I (8PSK modulated slots only)
Shows the ratio of the desired carrier power to the undesired signal power
(interference) in dB.
The C/I is an estimate derived from the EVM value.
Burst Types
Shows the modulation type for each slot in the analyzed frame.
Each of the eight slots in the GSM frame may have a different modulation. Thus, the
result is made up out of eight characters, e.g. "F I N I N I N I".
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