Originally Posted by
DaIceman
FYI
Closing down CDMA will make a big difference to the Next G in some areas.
At some of the Base Stations where tower space is limited, 3G850 (Next G) shares antennas with CDMA or GSM. Depending on the sharing solution used, there may be many extra interconecting cables and splitter/combiners used. All adding loss to the system. This loss reduces receiver sensitivity and output power at the antenna. Another problem with sharing antennas (for both CDMA and GSM as they are extremly close to 3G850) is Intermodulation products caused by bad cable/connectors, antennas that are old/faulty/poor quality, bad/corroded joints in the tower, and other antennas that have nothing to do with Next G.
Shuting CDMA down will free up antennas where needed reducing system loss, and free up frequency sprectrum so a second 3G850 carrier (Channel) can be turned on. This will give Next G more capacity, and allow for calls that drop below a certain quality level to switch to the second carrier in the hope the interfierence level will be lower. (GSM uses this technique very sucessfully).
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