Rather than just give a formula, its derivation is shown and explained. If radio doesn’t start itself, please Refresh the browser or click on play button or try another browser. Top Stations. If we ignore adding that final h, which is extremely small in comparison to the two R terms there will not be much effect on the product. Copyright © 2020 LiveOnlineRadio.Net . If the radio is very choppy and stops every 5 seconds, try listening to this radio at different times. Using this value in the calculation produces: It is more convenient to have the distance to the horizon in miles, so we can divide by 5,280 and get the familiar relationship, Because 1.414 happens to be the square-root of 2, this formula is often expressed as. Top Stations. The geometric distance to the horizon from a particular height above the Earth is illustrated below: Figure 1. WHTA Hot 107,9. We do our best! Country: Bulgaria. The usual assumption for radio wave refraction is to describe the behavior as if the Earth radius were larger than it actually is by a factor of 4/3. TABLE 12 of the distance to the (optical) horizon from various heights of eye. When I see a formula, I tend to be curious about how it was derived.
There is a well-known formula for calculating the radio horizon which says the distance in miles will be the square-root of twice the height in feet. We now have the geometric distance to the horizon from an observer or antenna of a certain height. It notes that the actual distance will vary somewhat with changes in atmospheric refraction, but that this variation is likely to be less than variations due to differences in the atmosphere from standard atmospheric conditions for temperature and pressure. So, be with Horizont Bnr Radio and get entertained 24/7.
Their radio horizons will just overlap at a maximum distance of about 9-miles apart. The Horizon and the Curved Earth. Earth radius, height of observer, and distance to horizon.
In the case of a small boat, we would expect the antenna height to be not more than about 10-feet.
All that has to be done is to increase the value we use for the Earth radius by a factor of 4/3. This implies they ought to be in range of radio communication with each other when about 9-miles or less apart. Author: James W. Hebert Radio Horizon 2000 live broadcasting from Haiti. With radio waves, there is almost always more refraction occurring.
(adsbygoogle = window.adsbygoogle || []).push({}); Most of Radio will not play automatically, Just wait. This range is typically obtained with ease with 25-watts of power in the transmitter. 1.6K likes. All Rights Reserved. Radio Horizon 2000 is a one of the most famous online radio station on Haiti. 3. Radio Horizon 2000 broadcast various kind of Haitian Traditional and Adult Contemporary Zouk, Rap, Compas and Instrumental music . Contact: 1. All Rights Reserved. Listen to Horizon Lens – Béthune internet radio online for free on radio.net. The distance-to-horizon formula then reduces to, By the law of square roots, we can also say, It is more convenient to have the distance to the horizon in miles, so we can divide by 5,280 (the number of feet in a mile) and get the familiar relationship. Bowditch provides a collection in their TABLE 12 of the distance to the (optical) horizon from various heights of eye.
The playlists of Horizont Bnr Radio also contains genres like pop, rap, rock, hip-hop, trance, electro house, country, soft etc. This article first appeared January 20, 2013. Horizont Radio website address is bnr.bg. Explanation of radio horizon The optical horizon calculation was derived with the assumption that there was a certain refraction of light in the atmosphere. For example, at a height of 10-feet, the Earth radius is larger by a factor of more than 2,000,000:1. Unauthorized reproduction prohibited! document.write("URL: " + document.URL); We bring you exceptional music to open and to free your mind. The soundtrack of Forza Horizon 4 features over 100 songs available through six (later seven) radio stations, each with a different genre and radio DJ. We now have reasonably good formulae for the distance to the geometric horizon or to the optical horizon as a function of the height. Horizont Radio website address is bnr.bg. WLOF - 101.7 FM The station of the Cross . Because we will be working with the height in feet, we will need to use the same units for the Earth radius.
KOMO - News Radio 1000 AM. Radio Horizon 2000 is a station that prioritizes the Haitian national cultural values.
BNR Horizont - Sofia, Bulgaria - Listen to free internet radio, news, sports, music, and podcasts. The playlists of Horizont Bnr Radio also contains genres like pop, rap, rock, hip-hop, trance, electro house, country, soft etc. 2. Rue Butte #2., wi Port-au-Prince, Haiti 5093122-0200
If we look at the relationship.
The distance to the horizon varies with the height of the observer, or in the case of radio, with the height of the radio's antenna. Instead of using 20902252.8-feet as the Earth radius, we use 27869670.4. Stream live CNN, FOX News Radio, and MSNBC.
So, be with Horizont Bnr Radio and get entertained 24/7. The esteemed nautical reference work, AMERICAN PRACTICAL NAVIGATOR by Bowditch has considered this problem. Bring Me The Horizon on RADIO.COM: Listen to Free Radio Online | Music, Sports, News, Podcasts The Earth is not a perfect sphere.
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