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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)

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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 […]

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

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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. RRU3928 has a dual-transmitter and dual-receiver structure, which supports higher output power and carrier capacity.

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Huawei RRU3908 base station circuit analysis (part 2 of 2)

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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. Other teardowns of radio equipment can be found here. Discussion of the teardown and analysis can be found here: https://highvoltageforum.net/index.php?topic=423.0 Central Processing Units Network communication is handled by

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Huawei RRU3908 Base Station Teardown (Part 1 of 2)

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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

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base station power amplifier RF

Ericsson Radio Base Station RBS3206 teardown

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The RBS3206 macro is an indoor Radio Base Station with one to four carriers and one to  six sectors at 20/40 Watt RF output power per carrier. All the boards that I have comes from the middle row in the above picture and unfortunately I did not have any of the diplexers at the top

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base station amplifier RF

Ericsson Radio Base Station RBS6000 teardown

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The RBS 6201 two radio shelves can be equipped with virtually any combination of GSM, WCDMA and LTE, which are available for all common frequencies. A single radio shelf can provide up to 3×8 GSM or 3×4 MIMO WCDMA or 3×20 MHz MIMO LTE or a combination of above standards. The RUS supports 60 Watt output power for

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