Discussion of teardown: https://highvoltageforum.net/index.php?topic=1113.0
Part 2: Coming soon!
All high resolution pictures will be published with part 2 at: http://kaizerpowerelectronics.dk
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. 3×70 Watt output power.
Up/Downconversion explained: https://youtu.be/qO127zY3voE?t=865
SAW filters explained: https://youtu.be/qO127zY3voE?t=963
Ceramic bandpass filter explained: https://youtu.be/h9-KhfQM3nI?t=729
Duplexer band pass filter explained: https://www.youtube.com/watch?v=HNaAQ3a7Duc
↝↝ Additional information and links ↜↜
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★ High Voltage Forum: http://www.highvoltageforum.net
★ Personal youtube channel with slow motion videos: https://www.youtube.com/user/MadsKaizer
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#nokia #siemens #basestation #teardown #radio
