Amplifier

Cisco Cable TV EGC GaN Segmentable Node A90201, RF Amplifier Teardown

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Teardown of Cisco Cable TV EGC GAN node and drop amplifier. Electronic Gain Control (EGC) technology and GaN (Gallium Nitride) monolithic microwave integrated circuits (MMICs}. These are modern versions running on fiber networks. These small amplifiers are used in houses where it is not practical to use a receiving antenna to get the signal from …

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Cisco Cable TV Optical Node and RF Amplifier Teardown

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Teardown of Cisco / Scientific Atlanta Cable TV optical node and drop amplifier. These are modern versions running on fiber networks. These small amplifiers are used in houses where it is not practical to use a receiving antenna to get the signal from the broadcast headend transmitter. They are also called a “service drop”. Back …

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

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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 …

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

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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. …

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nokia siemens frgl rf amplifier 2100 mhz 50 watt

Nokia Siemens 3G Flexi 2100MHz 50W Amplifier Teardown (part 1 of 3)

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Teardown of a Nokia Siemens Networks Flexi Multiradio amplifier. This was for example used for mobile phone base station installations and this particular part is a 2×50 Watt FRGL amplifier. This have been in service as a 2 antenna system for mobile telecommunications. It is GSM / EDGE and WCDMA / HSPA capable. Nokia Siemens …

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sonos connect exploding

Sonos Connect Exploding in Slow Motion 1000fps

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A pulse discharge with a peak current of 50,000 Ampere is send through a Sonos Connect. If your audio keeps skipping, stopping or generally playing up, you could have an issue with wireless interference from other devices in your home. One way to reduce this interference is to switch 90MW of energy through your Sonos …

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tda7492p explosion

TDA7492 Bluetooth Amplifier Exploding in Slow Motion 1000fps

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A pulse discharge with a peak current of 50,000 Ampere is send through a TDA7495p Bluetooth Amplifier. I did a review of this a while ago. I am not satisfied with the low audio quality and questionable user interface. This Chinese speaking amplifier is freed of all its junk solutions through a extreme pulse discharge …

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Nokia Siemens FXEA Base Station Amplifier Circuit Analysis

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

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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/

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