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The 40-meter or 7-MHz band is an amateur radio frequency band, spanning 7.000-7.300 MHz in ITU Region 2, and 7.000-7.200 MHz in Regions 1 & 3. It is allocated to radio amateurs worldwide on a primary basis; however, only 7.000-7.200 MHz is exclusively allocated to amateur radio worldwide. Shortwave broadcasters and land mobile users also have ...
The Reel Top 40 Radio Repository, sometimes called REELRADIO, is a virtual museum of radio broadcasts, primarily airchecks from the "Top 40" era of radio in North America. The archives are available by streaming. Established in 1996 as the first online airchecks archive, it was transferred to a dedicated not-for-profit organization, REELRADIO ...
An amateur radio propagation beacon is a radio beacon, whose purpose is the investigation of the propagation of radio signals. Most radio propagation beacons use amateur radio frequencies. They can be found on LF, MF, HF, VHF, UHF, and microwave frequencies. Microwave beacons are also used as signal sources to test and calibrate antennas and ...
The multi-stage fitness test (MSFT), also known as the beep test, bleep test, PACER test ( progressive aerobic cardiovascular endurance run ), or the 20m shuttle run test, is a running test used to estimate an athlete's aerobic capacity ( VO 2 max ). The test requires participants to run 20 meters back and forth across a marked track keeping ...
Jake Meyers hit a three-run homer, Jose Altuve and rookie Joey Loperfido added three hits each and the Houston Astros used a nine-run sixth inning to pull away for a 14-11 win over the Baltimore ...
July 17, 2024 at 5:15 PM. By Nichola Groom. (Reuters) -Construction of U.S. solar-manufacturing plants by Chinese companies is surging, putting China in position to dominate the nascent industry ...
TL. v. t. e. Sound intensity, also known as acoustic intensity, is defined as the power carried by sound waves per unit area in a direction perpendicular to that area. The SI unit of intensity, which includes sound intensity, is the watt per square meter (W/m 2 ). One application is the noise measurement of sound intensity in the air at a ...
Texas can keep a 1,000-foot (300-meter) long floating barrier in the Rio Grande to deter illegal border crossings by migrants at the river separating the United States and Mexico, a U.S. appeals ...