Exclusive: tolerance of azimuth, elevation and lnb skew angle of a dish to catch a satellite
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08-01-2015, 11:06 PM
(This post was last modified: 08-01-2015 11:07 PM by Akash Modi.)
Post: #1
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tolerance of azimuth, elevation and lnb skew angle of a dish to catch a satellite
Elevation: is how high from the horizon the satellite is (90° is vertical)
Azimuth: is simply the compass heading to point the dish toward. LNB skew: is used for installers in fine tuning the LNB radio axis. Location: are the GPS coordinates (in decimal form) of the address. azimuth:- An azimuth is an angular measurement in a spherical coordinate system. The vector from an observer (origin) to a point of interest is projected perpendicularly onto a reference plane; the angle between the projected vector and a reference vector on the reference plane is called the azimuth. An example is the position of a star in the sky. The star is the point of interest, the reference plane is the horizon or the surface of the sea, and the reference vector points north. The azimuth is the angle between the north vector and the perpendicular projection of the star down onto the horizon. Azimuth is usually measured in degrees (°). The concept is used in navigation, astronomy, engineering, mapping, mining and artillery. [IMG]Guests cannot see images and links in the messages. Please register to forum by clicking Register Here to see images.[/IMG] OR Login to view. The elevation of a geographic location is its height above or below a fixed reference point, most commonly a reference geoid, a mathematical model of the Earth's sea level as an equipotential gravitational surface (see Geodetic system, vertical datum). Elevation, or geometric height, is mainly used when referring to points on the Earth's surface, while altitude or geopotential height is used for points above the surface, such as an aircraft in flight or a spacecraft in orbit, and depth is used for points below the surface. This image was generated by NOAA from digital data bases of land and sea-floor elevations on a 2-minute latitude/longitude grid (1 minute of latitude = 1 nautical mile, or 1.853 km). Assumed illumination is from the west; shading is computed as a function of the east-west slope of the surface with a nonlinear exaggeration favoring low-relief areas. A Mercator projection was used for the world image, which spans 390° of longitude from 270° West around the world eastward to 120° East; latitude coverage is ±80°. The resolution of the gridded data varies from true 2-minute for the Atlantic, Pacific, and Indian Ocean floors and all land masses to 5 minutes for the Arctic Ocean floor. Less commonly, elevation is measured using the center of the Earth as the reference point.[citation needed] Due to equatorial bulge, there is debate as to which of the summits of Mt. Everest or Chimborazo is at the higher elevation,[citation needed] as the Chimborazo summit is further from the Earth's center, while the Mt. Everest summit is higher above mean sea level. [IMG]Guests cannot see images and links in the messages. Please register to forum by clicking Register Here to see images.[/IMG] OR Login to view. lnb skew angle of a dish to catch a satellite:- This tool helps find obstacles, such as trees and buildings, between a satellite dish installation location and an orbiting satellite. Type in ANY street or city address (globally), and the look angle calculator will zoom into an overhead aerial view of your installation location and draw a line showing the compass heading toward the satellite. It will also list the elevation angle (aka "look angle"), so you can locate a perfect installation location. All that is needed is the satellite's name (or its "longitude"), and any installation address worldwide. The Satellite Look Angle Calculator, developed by Dishpointer, has been partially down since November 21, 2013. The draw line to the satellite is not being included in the map below. You can help us by contacting Dishpointer at this link and stating how great this tool is, and to please fix the draw line. [IMG]Guests cannot see images and links in the messages. Please register to forum by clicking Register Here to see images.[/IMG] OR Login to view. |
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The following 4 users Like Akash Modi's post: Babu, Hemant, SatVijay, SENTHIL KUMAR |
09-01-2015, 08:35 AM
Post: #2
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RE: tolerance of azimuth, elevation and lnb skew angle of a dish to catch a satellite
good post bro. good diagrams.
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The following 1 user Likes SENTHIL KUMAR's post: Dinesh Jain |
09-01-2015, 09:34 AM
Post: #3
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RE: tolerance of azimuth, elevation and lnb skew angle of a dish to catch a satellite
Gud answer bro.
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The following 1 user Likes Sgokul gp's post: Dinesh Jain |
09-01-2015, 09:35 AM
Post: #4
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RE: tolerance of azimuth, elevation and lnb skew angle of a dish to catch a satellite
gud update bro
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18-02-2015, 03:44 PM
Post: #5
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RE: tolerance of azimuth, elevation and lnb skew angle of a dish to catch a satellite
dear friend you have done commendable work and deep knowledge, but beginner like me could gain less, i.e i am like weak signal, hence i request you to post with pictorial reference with locally available dish brands (solid, impex etc). polar mount dish are expensive and not easily available. i have placed order for impex.. 6ft. so i can happily apply/experiment your inputs and other members also.
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