commercial: 1575.42 MHz
additional military frequency: 1227.60 MHz
NF: 1 to 3 dB range typ, varies with system sensitivity requirements.
total system gain: >100 dB typ.
(usually this results in 2 to 3 downconversions for gain partitioning to improve stability.)
Frequency plan is typically unique to the system designer, and based on value-added features.
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