Nokia Siemens Flexi BTS base station teardown: Power amplifier (part 1 AND 2)

[madsbarnkob]

Teardown of a Nokia Siemens Networks Flexi BTS base station. This have been in service as a 6 antenna GSM system for mobile telecommunications.

GSM/EDGE, WCDMA/HSPA and LTE capable. 2x40 Watt output power.

also a picture of me pointing at where a remote radio unit or base station amplifier is usually mounted. Technically seen this is a TMA (tower mounted amplifier)

[madsbarnkob]

I finally got the circuit analysis finished and there is a whole lot fo ground trying to be covered in just roughly 20 minutes, so many details are left out only trying to cover some of the basics and let people catch the interest and seek out more information.



The high resolution pictures can not really be attached here, so please see them at my website where it has some more description aswell: http://kaizerpowerelectronics.dk/teardown/nokia-siemens-flexi-bts-base-station-teardown-circuit-analysis-part-2-of-2/