Ads
related to: am nighttime coverage maps3dearthmaps.com has been visited by 100K+ users in the past month
Search results
Results From The WOW.Com Content Network
A clear-channel station is a North American AM radio station that has the highest level of protection from interference from other stations, particularly from nighttime skywave signals. This classification exists to ensure the viability of cross-country or cross-continent radio service enforced through a series of treaties and statutory laws.
Whatever is after the comma is the night-time authorization, to avoid interfering with other, higher priority stations. Another comma indicates if it's a directional antenna system. DA means the station uses a directional antenna system. DA1 means the pattern is always directional, with the same pattern, day and night.
Clear-channel stations — radio stations whose nighttime skywave signals have a high level of protection from interference. The main article for this category is Clear-channel station . v
Because the AM broadcast band developed before technology suitable for directional antennas, there are numerous exceptions, such as the US use of 800 (kHz) and 900 non-directionally in Alaska, limited to 5 kW at night; and 1050 and 1220, directionally, in the continental US, and without time limits; each of these being assigned to specific ...
XEGQ-AM in Los Reyes de Salgado, Michoacán XEMYL-AM in Mérida, Yucatán XEOY-AM in Mexico City - 50 kW daytime, 20 kW nighttime, transmitter located at 19°23′18″N 99°07′29″W / 19.388333°N 99.124722°W / 19.388333; -99.124722 ( XEOY - 50 kW daytime, 20 kW nighttime
A coverage map may be produced to indicate the area in which a certain signal strength is delivered. [1] Even if it is 100% accurate (which it never is), a major factor on whether a signal is receivable depends very much on whether the receiving apparatus is sensitive enough to use a signal of that level.
WGN (AM) transmits a non-directional signal from a 195° (longer than half-wave) 740-foot tower in Elk Grove Village. [71] Its daytime signal stretches across five states: Illinois, Iowa, Wisconsin, Indiana, and Michigan. At night its signal spreads north to Hudson Bay, south to the Gulf of Mexico, west to Colorado, and east to the Atlantic ...
AM broadcasting stations have different issues, due to using the mediumwave band. Broadcast range in these stations is determined by ground conductivity, and the proper use and maintenance of grounding radials which act as a ground plane for the mast radiators used. Skywaves reflect off the ionosphere at a much greater distance above Earth's ...