Teardown of Cisco / Atlanta Scientific Cable TV combining amplifier. These small amplifiers are used in receiver stations with combining amplifiers to send out the different channels on a single cable. In houses a splitter is used to receive this signal and distribute to more households. Historically CATV is short for Community Antenna TV. A […]
Scientific Atlanta (Cisco) 1 GHz Combiner and PSU Teardown Read More »
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
Cisco Cable TV EGC GaN Segmentable Node A90201, RF Amplifier Teardown Read More »
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
Cisco Cable TV Optical Node and RF Amplifier Teardown Read More »
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 »
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 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
Nokia Siemens 3G Flexi 2100MHz 50W Amplifier Teardown (part 1 of 3) Read More »
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
Sonos Connect Exploding in Slow Motion 1000fps Read More »
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
TDA7492 Bluetooth Amplifier Exploding in Slow Motion 1000fps Read More »