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Upper section of antenna broke loose and destroyed guy wires due to ice storm WAND and WJJY used the same RCA UHF antennas, mfg in 1969. TV channel 17 (488-494 MHz) Collapsed Easter Sunday. Nebraska Education Tower, Angora: February 1978: Guyed steel lattice mast 457 Ice Zehlendorf bei Oranienburg, East Germany May 21, 1978: Guyed steel lattice ...
Electromagnetic compatibility (EMC) is the ability of electrical equipment and systems to function acceptably in their electromagnetic environment, by limiting the unintentional generation, propagation and reception of electromagnetic energy which may cause unwanted effects such as electromagnetic interference (EMI) or even physical damage to ...
The Congress' passage of the Cable Television Consumer Protection and Competition Act of 1992 authorized broadcast stations to demand payment from cable systems that carry them. Nearing the monetary agreement deadline and retransmission effective date on October 6, 1993, [ 10 ] there was an incremental conflict between broadcast stations and ...
A short antenna pole next to a house Multiple Yagi TV aerials. Antennas are commonly placed on rooftops and sometimes in attics. Placing an antenna indoors significantly attenuates the level of the available signal. [19] [20] Directional antennas must be pointed at the transmitter they are receiving; in most cases great accuracy is not needed ...
The construction company had to jury-rig a lifting device of their own design, as the antenna lifting points were not designed for the final lift. The cable from the gin pole would intersect the dish of the antenna and damage it. The design analysis of the construction company was flawed, leading them to underestimate the load on the bolts by a ...
One of the first radomes. The radome (top) covers the H2S radar system rotating antenna (bottom) on a Halifax bomber. A radome is often used to prevent ice and freezing rain from accumulating on antennas. In the case of a spinning radar parabolic antenna, the radome also protects the antenna from debris and rotational irregularities due to wind ...
Two County Fermanagh brothers who scammed elderly homeowners in the United States out of hundreds of thousands of dollars have been sentenced to 18 months in a US prison and face likely deportation.
Antenna rules are normally expressed as an allowable ratio of metal area to gate area. There is one such ratio for each interconnect layer. The area that is counted may be more than one polygon —it is the total area of all metal connected to gates without being connected to a source/drain implant.
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