Line-of-sight propagation is a characteristic of electromagnetic radiation or acoustic wave propagation which means waves can only travel in a direct...

Non-line-of-sight (NLOS) radio propagation occurs outside of the typical line-of-sight (LOS) between the transmitter and receiver, such as in ground reflections...

applies. Line-of-sight range Line-of-sight (missile), the straight line between the missile and the target Radar horizon Line-of-sight propagation, electro-magnetic...

operation of radar systems. Several different types of propagation are used in practical radio transmission systems. Line-of-sight propagation means radio...

taken advantage of skywave for long-distance (or "DX") communication. Skywave propagation is distinct from line-of-sight propagation, in which radio waves...

because ground waves in radio propagation are not confined to the surface. Groundwave contrasts with line-of-sight propagation that requires no medium, and...

including air traffic control and weather radars. Non-line-of-sight propagation Wave propagation Peter Meischner (ed.), Weather Radar: Principles and Advanced...

missile. The two variants are Command to line of sight (CLOS) Command off line of sight (COLOS) line of sight beam riding guidance (LOSBR) – The target...

in Helsinki Olos (album) OLOS (obstructed-line-of-sight), a lesser-used term in non-line-of-sight propagation Olo (color), an impossible color produced...

(300 km/h) Cruise speed: 125 knots (232 km/h) Communication range: line-of-sight propagation Operational range: 1,000 nautical miles (1,900 km) Hardpoints:...

straight lines (line-of-sight propagation) and are generally limited by the visual horizon, about 64 km (40 miles). Shortwave broadcasts of radio programs...

antenna than its actual ground track. Ranging Spherical range Line-of-sight_propagation  This article incorporates public domain material from Federal...

K-factor, the circular segment of earth profile that blocks off long-distance communications in line-of-sight propagation K-factor (Elo rating system),...

have line-of-sight propagation. Without a repeater, these systems are limited in range by the curvature of the Earth and the blocking effect of terrain...

short outdoor distances. It's simpler and assumes a more direct line-of-sight propagation. Log-distance path loss model is formally expressed as: L = L...

absorption of electromagnetic radiation has a variety of applications. In radio propagation, it is represented in non-line-of-sight propagation. For example...

elevation can allow two mobile stations, otherwise out of line-of-sight propagation range of each other, to communicate. Repeaters are found in professional...

seeker's line-of-sight propagation relative to the vehicle's motion, the kill vehicle will use proportional navigation to divert its course and line up exactly...

there is no dominant propagation along a line of sight between the transmitter and receiver. If there is a dominant line of sight, Rician fading may be...

approximately spherical shape of Earth. Radio transmitters are mounted on tall towers because they generally rely on line-of-sight propagation. The distance to the...

HF signals to make contacts, in both cases enjoying improved line-of-sight propagation over obstructions that would otherwise block transmissions. Contacts...

buildings due to materials and line of sight issues. Experience has shown that in dense office environments, line-of-sight propagation holds only for about the...

management Avionics Control tower Future Air Navigation System Line-of-sight propagation H. P. Westman (ed), Reference Data for Radio Engineers Fifth Edition...

to operation of radar systems. Different types of propagation are used in practical radio transmission systems. Line-of-sight propagation means radio waves...

controversially rated in mile or kilometer ratings. Because of the line of sight propagation of UHF signals, experienced users consider such ratings to be...

similar refraction phenomena Novaya Zemlya effect Radio propagation Line-of-sight propagation#Atmospheric refraction Ray tracing (physics) Shen Kuo Terrestrial...

station network exists in the current area of the aircraft. VHF communication is line-of-sight propagation and the typical range is up to 200 nautical...

it difficult to establish line-of-sight propagation. Rain and wet foliage can decrease range further with extreme amounts of rain. In a city, buildings...

number of systems use "creeping waves" that travel into the shadow zone. Line-of-sight propagation Hull-down "Radar Principles" (PDF). University of Illinois...

light for communications. In most cases, line-of-sight propagation is used, which limits the physical positioning of communicating devices. There have been...