This is a introduction to the differences between AC and DC fuses. I also use a high voltage / current discharge capacitor for a destructive test of the two difference fuses. You should also check out how ingenious high voltage fuses are made in this article Teardown of a medium voltage fuse (7200 V /
AC vs DC fuses, High Current, Explosive Destructive Testing and Theory Read More »
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.
Huawei RRU3928 1800MHz Radio Base Station Circuit Analysis (part 2 of 2) Read More »
Pictures as promised: https://highvoltageforum.net/index.php?topic=523.0 Teaser for the upcoming teardown videos of the Siemens Polyphos 30 x-ray machine, complete with control panel, inverter, collimator, detector/grid plate and x-ray head. Never miss a post, subscribe to email notifications on kaizerpowerelectronics.dk, find it in the menu right side: http://kaizerpowerelectronics.dk/
Merry Christmas & Happy New Year 2018 (X-ray teardown edition) Read More »
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.
Huawei RRU3928 1800MHz radio base station teardown (part 1 of 2) Read More »
Circuit analysis of a Nokia Siemens Networks Flexi BTS base station. This have been in service as a 6 antenna GSM system for mobile telecommunications. GSM/EDGE, WCDMA/HSPA and LTE capable. 2×40 Watt output power. If you missed part 1, see it here: https://kaizerpowerelectronics.dk/teardown/nokia-siemens-flexi-bts-base-station-teardown-power-amplifier-part-1-of-2/ Filter Above picture shows the coaxial cavity band pass filter which in
Nokia Siemens Flexi BTS Base Station Teardown: Circuit Analysis (Part 2 of 2) Read More »
Youtube subscription changed over night! Since YouTube changed their notification setup a long while ago, you might be missing out on notifications about my new videos. Be sure to check if you have the “bell” clicked next to the subscription! Thank you 🙂 Check your subscription level here on my channel: https://www.youtube.com/channel/UCSukTlgTEWiL-sl0UeYeJvQ
Youtube subscription change, please check! Read More »
Here you get a short glimpse of the new space for the laboratory and the final setup. This is part 5 and 6 in a series of videos on moving out, moving in and setting up the new lab / workshop. If you missed part 1, 2, 3 or 4 of this series on moving
Moving To A New Lab (Part 5 and 6) Tour And Finally Its Operational Read More »
Teardown of a Nokia Siemens Networks Flexi BTS base station. This have been in service as a 6 antenna GSM system for mobile telecommunications. Part 2 with circuit analysis of the Nokia Siemens BTS RF circuits can be found on this link. This base station amplifier is capable of GSM/EDGE, WCDMA/HSPA and LTE at 2×40
Nokia Siemens Flexi BTS base station teardown: Power amplifier (part 1 of 2) Read More »