Da_Stier, a user from www.highvoltageforum.net has reverse engineered the power amplifier module and this is the documentation and test results.
Nokia Siemens Networks Flexi 3x90W FXEB reverse engineering with more information about the process: [ Ссылка ]
All high resolution pictures: [ Ссылка ]
Discussion of teardown: [ Ссылка ]
Part 1 of 3: [ Ссылка ]
Part 2 of 3: [ Ссылка ]
Teardown of a Nokia Siemens Networks Flexi Multiradio base station. This have been in service as a 3 antenna system for mobile telecommunications.
GSM/EDGE, WCDMA/HSPA and LTE capable. 3x70 Watt output power.
Up/Downconversion explained: [ Ссылка ]
SAW filters explained: [ Ссылка ]
Ceramic bandpass filter explained: [ Ссылка ]
Diplexer band pass filter explained: [ Ссылка ]
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#electronicscreators #nokia #siemens #basestation #teardown #radio
