The Huawei RRU3908 is an outdoor Radio Base Station with one to four carriers and one to six sectors at 20/40 Watt RF output power per carrier.
Part 1 is the teardown itself with a walkthrough of different design highlights.
Part 2 is coming online in the following 1-2 weeks.
Part 2 is a complete circuit analysis and will also have high res pictures uploaded to this article.
For some different RF technology and techniques explained, here are some highlights from my previous videos.