Nokia Siemens 3G Flexi 2.1GHz to 2.4GHz 50W Amplifier Reverse Engineering (Part 3 of 3)

Circuit analysis, reverse-engineering and hacking of a Nokia Siemens Networks Flexi Multiradio base station FRGL amplifier. The user Da_Stier from highvoltageforum.net made a deep circuit analysis of the power amplifier, reverse-engineered how it works, built new printed circuit boards to …

Nokia Siemens 3G Flexi 2.1GHz to 2.4GHz 50W Amplifier Reverse Engineering (Part 3 of 3) Read More

Nokia Siemens Flexi 3x70W FXEA 1800MHz Base Station Circuit Analysis (Part 2 of 3)

Circuit analysis 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. Part 1 of the actual base station …

Nokia Siemens Flexi 3x70W FXEA 1800MHz Base Station Circuit Analysis (Part 2 of 3) Read More

Huawei RRU3928 1800MHz Radio Base Station Circuit Analysis (part 2 of 2)

The RRU3928 is an outdoor remote radio unit. It processes baseband and RF signal data. With the Software Defined Radio (SDR)technology, the RRU3928 supports the dual-mode operation of any two modes of GSM, UMTS, and LTE through software configuration modification. …

Huawei RRU3928 1800MHz Radio Base Station Circuit Analysis (part 2 of 2) Read More