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Mobile connection. Schemes, articles, descriptions
Free library / Schemes of radio-electronic and electrical devices
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Delay device for turning off the light in the car
Section Car. Electronic devices. The proposed device allows you to delay turning off the light after closing the door, which allows the driver to easily insert the key into the ignition at night. The scheme of the device is simple and does not require comments. It should only be noted that the VD1 diode is necessary to prevent the discharge of the capacitor through the alarm circuit if it is installed in the car and connected to the door buttons ... >>
Diode and bipolar transistor tester
Section Measuring technology. Most modern testers (multimeters) have built-in functions for testing diodes and sometimes transistors. But if your tester does not have these functions, then you can assemble a diode and transistor tester with your own hands. Below is a tester project based on the PIC16F688 microcontroller. The logic for testing diodes is very simple. A diode is a PN junction that is known to only conduct current in one direction. Therefore, a working diode will conduct current in one direction. If the diode conducts current in both directions, then the diode is inoperative - broken. If the diode does not conduct in either direction, then the diode is also not working. The circuit implementation of this logic is shown below. ... >>
Production of a transformer for radio equipment
Section Ham Radio Technologies. When manufacturing PAs, as well as any other devices, the problem of selecting a good transformer often arises. Basically, the following conditions are imposed on it: it is quite powerful and small-sized. Such requirements include only types of transformers that have become widespread among radio amateurs: transformers of the ShL, PL and O (toroid) brands. Let's focus on the smallest transformer of the toroid type, but the problem immediately arises of where to get the transformer iron strip from which such cores are made in the factory. A technology for manufacturing transformers from sheet transformer iron used in powerful oil-cooled transformer substations for voltages from 380 to 6000 volts or more is proposed. ... >>
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Articles on mobile communications
Articles on mobile communications; schemes for mobile communications; descriptions of mobile communication devices: 114 articles
- GSM unlock box by Radiance
- Motorola Service Card Emulator
- nokia flasher
- Sim Reader v.1
- Sim Reader v.2
- Sim Reader v.3
- DCU-60 USB cable for Sony Ericsson phones
- Do-it-yourself GSM antenna
- Humidity Control Cell Phone
- External antenna for GSM cell phone
- What is a data cable for?
- Another option for a cell phone antenna
- How to Extend the Life of Ni-MH Cell Phone Batteries
- How GSM networks work, a brief basics of communication
- House call from a cell phone
- Speech coding in digital cellular systems
- Cellular features
- PCB for cable Nokia 32xx/51xx/61xx (M2Bus/max232)
- PCB for cable Nokia 32xx/51xx/61xx (M2Bus/max3232)
- Voltage converter for cell phone chargers
- How GSM networks work
- Check if the cell phone is official
- Programmer Sim Card Reader SOLO GWR
- Unlocking Siemens mobile phones
- Wiring the interface cable for Siemens phones
- Cable wiring for Samsung A100, A110, A200, A288, SGH600, A300, M100, R210, T100 mobile phones
- Ericsson 192 pinout
- Ericsson T28 pinout
- Motorola V60, V66 pinout
- Nokia 2110, 3110, 8110 pinout
- Nokia 8210, 8850 pinout
- Nokia 8910 pinout
- Siemens C25/S25 pinout
- Siemens C30 pinout
- Pinout for Nokia 3210
- Pinout for different models of mobile phones. Part 1
- Pinout for different models of mobile phones. Part 2
- Pinout of Nokia cell phones
- Nokia HS-23 Headset Repair
- Cell phone charger repair
- Repair and modification of NOKIA cell phone charger
- Secrets of Sony phones
- Nokia 5110/6110 (max3232) data cable diagram and phone pinout
- Diagram of Nokia Flasher interface
- Mitsubishi Trium universal data cable diagram
- Universal cable diagram (GSM box)
- Diagram of a universal cable for mobile phones
- Scheme, pinout (pinout) of Alcatel 311-315 BF3/4 cable
- Scheme, pinout (pinout) of Alcatel BE-1/3/4/5 cable
- Scheme, pinout (soldering) of the Alcatel Dual Band cable
- Scheme, pinout (pinout) of Alcatel Easy db/Club db/MAX db cable
- Scheme, pinout (pinout) of the Alcatel One Touch cable
- Scheme, pinout (pinout) of the Alcatel One Touch DB cable
- Scheme, pinout (pinout) of Alcatel One Touch Easy DB cable
- Scheme, pinout (pinout) of Alcatel One Touch Easy Dual Band cable
- Scheme, pinout (wiring) cable Ericsson 218,318,337,388
- Scheme, pinout (wiring) cable Ericsson 3xx, 6xx, 7xx, 8xx
- Scheme, pinout (wiring) cable Ericsson 6хх,7хх
- Scheme, pinout (wiring) cable Ericsson 8xx, 1018, T18
- Scheme, pinout (wiring) cable Ericsson T10s, T18s, T28s, A1018s
- Scheme, pinout (wiring) cable Ericsson T28s (max3232)
- Scheme, pinout (pinout) of the Motorola T191 cable
- Scheme, pinout (pinout) of the Motorola V3600 cable
- Scheme, pinout (pinout) cable Nokia 21xx, 31xx, 51xx, 61xx, 81xx
- Scheme, pinout (pinout) cable Nokia 3210 (MBUS)
- Scheme, pinout (pinout) cable Nokia 3210, 8210
- Scheme, pinout (pinout) cable Nokia 3310
- Scheme, pinout (pinout) cable Nokia 3410
- Scheme, pinout (pinout) cable Nokia 5110, 61xx (max3232)
- Scheme, pinout (pinout) cable Nokia 5110, 61xx, 7110, 6210(M2BUS)
- Scheme, pinout (pinout) cable Nokia 5110/6110
- Scheme, pinout (pinout) cable Nokia 51xx/61xx FM2BUS
- Scheme, pinout (pinout) cable Nokia 7110
- Scheme, pinout (pinout) cable Nokia 8210/8850 (Mbus)
- Scheme, pinout (pinout) cable Panasonic G450, G500
- Scheme, pinout (pinout) cable Panasonic G450, G500, G520, G600
- Scheme, pinout (pinout) cable Panasonic GD-35, GD-52, GD-92, GD-93
- Scheme, pinout (pinout) cable Panasonic GD-70, GD-90
- Scheme, pinout (pinout) of the Philips Savvy cable
- Scheme, pinout (pinout) of the Sagem 3xx, 9xx cable
- Scheme, pinout (pinout) of the Sagem 6xx, 7xx, 8xx cable
- Scheme, pinout (pinout) cable Samsung A800
- Scheme, pinout (pinout) cable Samsung C100 (1 option)
- Scheme, pinout (pinout) cable Samsung C100 (2 option)
- Scheme, pinout (pinout) cable Samsung M100
- Scheme, pinout (pinout) cable Samsung SGH-200, SGH-288
- Scheme, pinout (pinout) cable Samsung SGH-600
- Scheme, pinout (wiring) cable Samsung SGH-600, 2100db
- Scheme, pinout (pinout) cable Samsung SGH-S500, SGH-X100, SGH-X600, SGH-E700, SGH-E100
- Scheme, pinout (pinout) of the Siemens C25 - SL45 cable, pinout
- Scheme, pinout (pinout) cable Siemens C-25 (max232)
- Scheme, pinout (pinout) of Siemens C25, S25 cable
- Scheme, pinout (pinout) of Siemens C60 cable with GPRS support
- Scheme, pinout (pinout) of the Siemens C62 cable
- Scheme, pinout (soldering) of the Siemens M55 cable on KT315
- Scheme, pinout (soldering) of the Siemens ME45 cable on KT315, KT361
- Scheme, pinout (pinout) cable Siemens S10, S11, S1018
- Scheme, pinout (pinout) of Siemens S10, S11 cable
- Scheme, pinout (pinout) of Siemens S25/C/M/S35 cable
- Scheme, pinout (pinout) cable Siemens S25/C35/S35 (max3232)
- Scheme, pinout (pinout) cable Sony CMD C-5
- Scheme, pinout (pinout) cable Sony Ericsson T100
- Scheme, cable pinout (pinout) for all Siemens models
- Scheme, pinout (pinout) cable for Ericsson phones (max 3232)
- Scheme, pinout (pinout) of the cable for Ericsson 8xx, T1x, A1018 phones
- Scheme, pinout (pinout) cable for Ericsson T2688 phones
- Scheme, pinout (pinout) of the cable for Motorola 6xxx, 8xxx, Flare phones
- Scheme, pinout (pinout) of the cable for Motorola Asim phones
- Scheme, pinout (pinout) of the cable for Motorola BDM phones
- Scheme, pinout (pinout) of the cable for Motorola d520, m3100 phones
- Scheme, pinout (pinout) of the cable for Motorola T191 phones
- Scheme, pinout (pinout) of the cable for Motorola v3688 phones
- TV antenna for cell phone
- GPRS (General Packet Radio Service) technology
- Pager Extension
Cell phones. Expert Reviews
Do you remember how it all started? Mobile Legends...
Latest news of science and technology, new electronics:
Using Apple Vision Pro during surgery
16.03.2024
The medical team at Cromwell Hospital in London used Apple Vision Pro for the first time during two spinal surgeries. This event confirms the headset's potential as a medical tool that will change the way surgical practice is performed. Although the doctors themselves did not use Vision Pro, the operating room nurse worked with virtual reality using glasses while preparing and performing procedures. The headset made it possible to view virtual screens in the operating room, select instruments and monitor the progress of the operation. Software developed by eXeX, a company that specializes in creating artificial intelligence-based applications for surgery, has significantly improved the patient care process. Using Apple Vision Pro opens up new opportunities for developing healthcare applications such as clinical education, surgical planning, training and medical imaging. Implementation of Apple Vision Pro in the medical industry ... >>
Carbon storage in the North Sea
16.03.2024
Norwegian Energy Minister Terje Åsland has announced the launch of the Longship project, which aims to create a central carbon dioxide storage facility in the North Sea. This ambitious project is valued at $2,6 billion and aims to apply CCS (carbon capture and storage) technology to mitigate the impact of climate change. Norway already has experience in CCS, thanks to the successful Sleipner and Snohvit projects, and is now looking to increase the amount of carbon sealed beneath the seabed. Longship's plan calls for capacity to capture and store 1,5 million tons of carbon annually over 25 years. Despite the positive outlook, there are concerns about the long-term consequences of such storage. However, proponents of the project argue that offshore carbon storage has a number of advantages, including minimal environmental impact. The Longship project is carried out with the participation of Equinor, Shell and TotalEnergies through the joint venture Northern Li ... >>
Mini-organs grown from human amniotic fluid
15.03.2024
An international team of scientists led by Professor Fan Xiulin from Zhejiang University has developed a unique method of growing mini-organs from cells found in human amniotic fluid. This significant medical breakthrough could lead to improved diagnosis and treatment of congenital diseases. The organoids, which are three-dimensional cellular structures that mimic organs on a smaller scale, were grown from lung, kidney and small intestine cells found in amniotic fluid. This method opens up new possibilities for studying various fetal conditions and may be the key to early diagnosis and treatment of birth defects. Although no treatment has yet been attempted, the scientists hope their research will help combat the serious congenital diseases that affect millions of newborns each year. This breakthrough could change medical interventions by making it possible to diagnose and treat congenital diseases. ... >>
Random news from the Archive The Pentagon is developing an orbital station
08.07.2019
The Department of Military Innovation (DIU) of the US Department of Defense announced a competition to develop an orbital station that could be used for experiments and cargo storage.
According to the list of requirements that the Pentagon makes to potential bidders, a promising orbital station must be suitable for space construction, microgravity experiments, training, testing, cargo storage and transportation, as well as for certain "other functions." As part of the tender, participants must design and build a prototype of a small robotic orbital station with a volume of one cubic meter.
A promising station should be suitable for handling cargo or any other payload weighing up to 80 kilograms. The onboard power supply must provide 1 kilowatt of energy, and the station's communication systems must provide data exchange at a speed of at least 100 kilobits per second. The competition will be held in several stages. First, we will talk about the development of the project of the station.
In 2020, the development and launch of prototypes of orbital stations should begin - from the moment a contract is signed to the launch of prototypes, according to the requirements of the military, no more than two years should pass. Prototypes should be assembled on a modular basis and provide for the possibility of subsequent upgrades. Among the functions of the station, the Pentagon also included the reception of people on board.
In addition, the station must be able to change orbit, perform work outside low Earth orbit, dock with other manned and unmanned spacecraft, and assemble other objects in orbit using one or more robotic arms.
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