Search results
Results from the WOW.Com Content Network
The electric field strength at a specific point can be determined from the power delivered to the transmitting antenna, its geometry and radiation resistance. Consider the case of a center-fed half-wave dipole antenna in free space, where the total length L is equal to one half wavelength (λ/2). If constructed from thin conductors, the current ...
A modern PC is a device which is operating in the VHF/UHF frequency range using square waves. As the cases on many computers are not perfect shields, some of this radio-frequency energy can leak out and cause interference to radio (and sometimes TV) reception. Switched-mode power supplies or packs can be a source of interference.
Outdoor antennas provide up to a 15 dB gain in signal strength and 15-20 dB greater rejection of ghost signals in analog TV. [6] Combined with a signal increase of 14 dB due to height and 11 dB due to lack of attenuating building walls, an outdoor antenna can result in a signal strength increase of up to 40 dB at the TV receiver.
The first technique developed was the far-field range, where the antenna under test (AUT) is placed in the far-field of a range antenna. Due to the size required to create a far-field range for large antennas, near-field techniques were developed, which allow the measurement of the field on a distance close to the antenna (typically 3 to 10 ...
The "primary service area" is the area served by a station's strongest signal. The "city-grade contour" is 70 dBμ (decibels relative to one microvolt per meter of signal strength) or 3.16mV/m (millivolts per meter) for FM stations in the United States, according to Federal Communications Commission (FCC) regulations.
List of free analog and digital electronic circuit simulators, available for Windows, macOS, Linux, and comparing against UC Berkeley SPICE.The following table is split into two groups based on whether it has a graphical visual interface or not.
GeeXboX - GeeXboX (stylized as GEExBox) is a free Linux distribution providing a media center software suite for personal computers. Kdetv - Discontinued TV viewer Kodi (formerly XBMC ) - It allows users to play and view most streaming media, such as videos, music, podcasts , and videos from the Internet, as well as all common digital media ...
The ROMs of the game and its sequel were formerly offered by the owner Randel Reiss for free download. In 2021, however, the rights to both games were purchased by Piko Interactive, leding the download links for the ROMs to disappear from Technopop's website [121], but they are still available for free download on Zophar's Domain.