During production, the transmit and receive levels (RSSI = receiver signal strength indicator) of GSM phones are aligned throughout the entire frequency range. Previous
alignment procedures took several tens of seconds – depending on the number of frequency/ level combinations to be measured. The R&S CMU-K47 software option
(Smart Alignment@GSM-MS) makes intelligent use of the GSM frame/slot structure and performs alignment in just 0.25 seconds – at a maximum of 50 frequencies and seven levels per frequency.
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