Modernization of radio stations. Schemes, articles of the Free Technical Library

FREE TECH LIBRARY
Free library / Schemes of radio-electronic and electrical devices

Modernization of radio stations. Schemes, articles, descriptions

Free library / Schemes of radio-electronic and electrical devices

Modernization of radio stations

We recommend reading in our Free Technical Library:

SAMSUNG CGM7607L monitor power supply based on KA2S series chip

Section Power supplies. Specialized microcircuits of the KA2S series form the basis of the latest generation of SAMSUNG monitor power supplies (400b, 500/500pM, CGM1706M) field-effect transistor. The microcircuit is equipped with a soft start system and uses external synchronization. The pulse-width modulator operates from a generator at a fixed frequency and has internal protection circuits that block the operation of the microcircuit in case of increased or decreased supply voltage, overheating, and the occurrence of critical source operating modes ... >>

GSM car alarm on Atmega16

Section Security and alarm via mobile communication. The device is designed to timely notify the owner of a car about a car break-in. The alarm monitors doors, windows, hood and trunk. The alarm is triggered when one of the inputs is shorted to ground. This device has four security inputs. One entry for the driver's door, one for the other doors, one for the hood and one for the trunk. After turning on the device, the driver has 25 seconds to get out of the car and close all doors. During these 25 seconds the LED will be off. If the driver has not exited within this time, or any door has been left open, the LED will be off until all doors and the hood are closed. After you close all the doors for half a second, the siren and headlights turn on, and the LED starts blinking, indicating that the alarm has switched to armed mode ... >>

High Voltage DC Voltage Stabilizer

Section Voltage stabilizers. When building high-quality high-voltage voltage stabilizers, for example, to power lamp stages, one has to use special circuits for switching on regulating elements, which complicates the circuitry of such stabilizers. Meanwhile, there are integrated circuits, using which you can create simple high-voltage compensation-type voltage stabilizers for an output voltage of 70 to 140 V. These are microcircuits of the SE070N, SE080N, SE090N, SE105N, SE110N, SE120N, SE125N, SE130N, SE135N, SE140N types. These microcircuits are designed to control and regulate DC voltage. ... >>

To any article in this section and all Encyclopedias you can leave your comment.

Articles on the modernization of radio stations

Articles on the modernization of radio stations; schemes for the modernization of radio stations; descriptions for the modernization of radio stations: 29 articles

All articles on civil radio communication

Latest news of science and technology, new electronics:

Solidification of bulk substances 30.04.2024

There are quite a few mysteries in the world of science, and one of them is the strange behavior of bulk materials. They may behave like a solid but suddenly turn into a flowing liquid. This phenomenon has attracted the attention of many researchers, and we may finally be getting closer to solving this mystery. Imagine sand in an hourglass. It usually flows freely, but in some cases its particles begin to get stuck, turning from a liquid to a solid. This transition has important implications for many areas, from drug production to construction. Researchers from the USA have attempted to describe this phenomenon and come closer to understanding it. In the study, the scientists conducted simulations in the laboratory using data from bags of polystyrene beads. They found that the vibrations within these sets had specific frequencies, meaning that only certain types of vibrations could travel through the material. Received ... >>

Implanted brain stimulator 30.04.2024

In recent years, scientific research in the field of neurotechnology has made enormous progress, opening new horizons for the treatment of various psychiatric and neurological disorders. One of the significant achievements was the creation of the smallest implanted brain stimulator, presented by a laboratory at Rice University. Called Digitally Programmable Over-brain Therapeutic (DOT), this innovative device promises to revolutionize treatments by providing more autonomy and accessibility to patients. The implant, developed in collaboration with Motif Neurotech and clinicians, introduces an innovative approach to brain stimulation. It is powered through an external transmitter using magnetoelectric power transfer, eliminating the need for wires and large batteries typical of existing technologies. This makes the procedure less invasive and provides more opportunities to improve patients' quality of life. In addition to its use in treatment, resist ... >>

The perception of time depends on what one is looking at 29.04.2024

Research in the field of the psychology of time continues to surprise us with its results. Recent discoveries by scientists from George Mason University (USA) turned out to be quite remarkable: they discovered that what we look at can greatly influence our sense of time. During the experiment, 52 participants took a series of tests, estimating the duration of viewing various images. The results were surprising: the size and detail of the images had a significant impact on the perception of time. Larger, less cluttered scenes created the illusion of time slowing down, while smaller, busier images gave the feeling of time speeding up. Researchers suggest that visual clutter or detail overload can make it difficult to perceive the world around us, which in turn can lead to faster perception of time. Thus, it was shown that our perception of time is closely related to what we look at. Larger and smaller ... >>

Random news from the Archive

Toshiba Camileo X-Sports action camera 14.09.2013

Toshiba Corporation has announced a compact Camileo X-Sports camcorder in a rugged housing, designed specifically for athletes, thrill-seekers and outdoor enthusiasts.

The device is equipped with a 12-megapixel CMOS sensor, 2-inch display, wide-angle lens, 10x digital zoom, Wi-Fi wireless adapter with support for 802.11 b/g/n, microUSB ports, Mini HDMI and microSD card slot. Dimensions are 73x49,5x29,5 mm, weight - 94 g.

The camcorder can withstand drops from a height of up to one and a half meters. A special sealed case allows you to use the camera underwater at a depth of up to 60 meters. Full HD video recording (1920x1080 pixels) with a frequency of 30 or 60 frames per second is supported: in the first case, the battery lasts for an hour and a half, in the second - for more than two hours.

You can control the operation of Camileo X-Sports using a smartphone or tablet, as well as a remote control in the form of a wristwatch, which is not afraid of shocks and diving under water to a depth of one and a half meters. Special mounts allow you to mount the camcorder on a bicycle handlebar, helmet, etc.

Sales of new items will begin before the end of the year, the price is 250 euros.

Other interesting news:

▪ Bank collapse

▪ Silicon formats proteins

▪ TOSHIBA SATELLITE laptops can now burn DVD-R/RW

▪ Body Ultrasound Stickers

▪ Brain pacemakers for Olympic runners

News feed of science and technology, new electronics

Interesting materials of the Free Technical Library:

▪ section of the site Children's scientific laboratory. Article selection

▪ article Lord Tashkenters. Popular expression

▪ article How long ago did pets appear? Detailed answer

▪ article Worker (loader) with a manual method of moving goods. Standard instruction on labor protection

▪ article Wind energy abroad. Encyclopedia of radio electronics and electrical engineering

▪ article Does an attenuator improve dynamic range? Encyclopedia of radio electronics and electrical engineering

All languages of this page

Home page | Library | Articles | Website map | Site Reviews