base station

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

Leave a Comment / Teardown / /

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 make it run standalone and built a new enclosure for it. Shifting its output frequency […]

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

Nokia Siemens 3G Flexi 2100MHz 50W Amplifier Circuit Analysis (Part 2 of 3)

3 Comments / Teardown / /

Introduction I have here a circuit analysis of a 2100 MHz cellular amplifier from a UMTS basestation setup. The initial teardown video can be found in Nokia Siemens 3G Flexi 2100MHz 50W Amplifier Teardown (Part 1 of 3). Video Cellular Basestation Overview The Nokia Siemens Networks FRGL module consists of two 50 Watt amplifier modules.

Nokia Siemens 3G Flexi 2100MHz 50W Amplifier Circuit Analysis (Part 2 of 3) Read More »

Teardown of Kathrein 1800/900 MHz Antenna For Mobile Phone Base Station

1 Comment / Teardown / /

Teardown of a Kathrein Dual Panel 1800/900 MHz used for both GSM (2G) and 3G mobile broadband technologies. It also has options for Remote Electrical Tilt (RET). On the inside we will find phase changers, splitters, combiners and 1800/900 MHz antenna elements. I give a walk-through of the circuit, what the different elements does and

Teardown of Kathrein 1800/900 MHz Antenna For Mobile Phone Base Station Read More »

Nokia Siemens FXEA Base Station Amplifier Circuit Analysis

Nokia Siemens Flexi 3x70W FXEA 1800MHz Power Amplifier Reverse Engineering (Part 3 of 3)

Leave a Comment / Teardown / /

Da_Stier, a user from www.highvoltageforum.net has reverse engineered the power amplifier module and this is the documentation and test results. The RF power amplifier teardown can be seen in part 1: https://kaizerpowerelectronics.dk/teardown/nokia-siemens-flexi-3x70w-fxea-1800mhz-base-station-teardown-power-amplifier-part-1-of-2/

Nokia Siemens Flexi 3x70W FXEA 1800MHz Power Amplifier Reverse Engineering (Part 3 of 3) Read More »

Nokia Siemens Flexi 3x70W FXEA 1800MHz Base Station Teardown: Power Amplifier

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

Leave a Comment / Teardown / /

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 amplifier teardown can be seen here. Power supply The power supply is split into a

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

Nokia Siemens Flexi 3x70W FXEA 1800MHz Base Station Teardown: Power Amplifier

Nokia Siemens Flexi 3x70W FXEA 1800MHz Base Station Teardown: Power Amplifier (Part 1 of 3)

2 Comments / Teardown / /

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. Nokia Siemens Flexi 3x90W FXEB 1800MHz base station teardown: Power amplifier (part 2 of 2)

Nokia Siemens Flexi 3x70W FXEA 1800MHz Base Station Teardown: Power Amplifier (Part 1 of 3) Read More »

Nokia Siemens Flexi 3x90W FXEB 1800MHz Base Station Teardown: Power Amplifier (Part 2 of 2)

2 Comments / Teardown / /

This Nokia Siemens Networks Multiradio BTS FXEB module is a GSM 1800 MHz 90W amplifier module capable of GSM/EDGE, WCDMA/HSPA and LTE. If you missed part 1, see it here: Nokia Siemens Flexi 3x90W FXEB 1800MHz base station teardown: Power amplifier (part 1 of 2) Specifications The Flexi Multiradio Radio Frequency Module (FXxx) or RF

Nokia Siemens Flexi 3x90W FXEB 1800MHz Base Station Teardown: Power Amplifier (Part 2 of 2) Read More »

Nokia Siemens Flexi 3x90W FXEB 1800MHz Base Station Teardown: Power Amplifier (Part 1 of 2)

1 Comment / Teardown / /

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. 3×90 Watt output power. All high resolution pictures will be published with part 2 : Nokia Siemens Flexi 3x90W FXEB 1800MHz base station teardown: Power amplifier (part

Nokia Siemens Flexi 3x90W FXEB 1800MHz Base Station Teardown: Power Amplifier (Part 1 of 2) Read More »

Scroll to Top