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The nominal "80 meter" band begins at 3.5 MHz (85.7 m wavelength) and goes up to 4.0 MHz (74.9 m wavelength).The upper part of the band, mostly used for voice, is often referred to as 75 meters, since in Region 2, the wavelengths in that section are between 80–75 meters (adjacent to or overlapping a shortwave broadcast band called by the same name: "75 m").
80 metres or 80 / 75 meters – 3 500–4 000 kHz – 85.65–74.95 m actual Best at night, with significant daytime signal absorption. Works best in winter, due to atmospheric noise from hemispheric thunder storms during summer.
An amateur radio net, or simply ham net, is an "on-the-air" gathering of amateur radio operators.Most nets convene on a regular schedule and specific frequency, and are organized for a particular purpose, such as relaying messages, discussing a common topic of interest, in severe weather (for example, during a Skywarn activation), emergencies, or simply as a regular gathering of friends for ...
At the conference, standard international amateur radio bands of 80/75, 40, 20 and 10 meters and radio callsign prefixes were established by treaty. In 1933 Robert Moore, W6DEI, begins single-sideband voice experiments on 75 meter lower sideband. By 1934, there were several ham stations on the air using single-sideband.
The Mayan calendar’s 819-day cycle has confounded scholars for decades, but new research shows how it matches up to planetary cycles over a 45-year span
The "Home Alone" house was built in 1921 and is over 9,000 square feet. It also features four fireplaces, two laundry rooms, two hot tubs, a wet bar, recreation space, a gym, a private movie ...
On 10 October the Third National Radio Conference made three shortwave bands available to U.S. amateurs [19] at 80 meters (3.75 MHz), 40 meters (7 MHz) and 20 meters (14 MHz). These were allocated worldwide, while the 10 meter band (28 MHz) was created by the Washington International Radiotelegraph Conference [ 20 ] on 25 November 1927.
Selena Gomez and Benny Blanco had a cozy, cuddly Thanksgiving.. On Thursday, Nov. 28, Gomez, 32, shared a photo to her Instagram Stories of her boyfriend of more than one year, Blanco, 36 ...