Friday, February 27, 2009

The Dish


Not the food we eat, but I think most of us are familiar with it. It is a bowl shape oval that usually or always (I think!) facing the sky. Actually it is a special kind of antenna that receives signal on a designated broadcast source, in my case mainly FTA (free-to-air). The shape of the dish is parabolic which is designed to reflect the signal to a specific point.

Basically, the Dish purpose is to capture or catch the signal then bounces it to its feedhorn. In the assembly of dish we can see an extended arm that has a tip that is pointing at the dish. I is called the feed horn or LNB (Low Noise Block-downconverter), it is the one responsible in organizing the signal collected by The dish (in this case a radiowave). It then passes the signal onto the receiving equipment (Receiver), then just watch TV (Yes!). Ideal Dish size to be used usually depends on location, there are areas that might need a bigger or smaller size, I guess distance from acertain satellite is the factor.

I think here in the Philippines a 55 to 60 cm long axis dish plate is Ideal in getting signal from Agila 2. Satellite dish size are included in the data produced in satbeam.com, just locate your area and the satellite you are pointing.

Things to check in Satellite dish Installation, I'm not an expert but these are pretty basic:
  • After finishing the dish assembly, make sure that nuts and bolts are well tighten.
  • Before Mounting it permanently make sure that there is no obstruction between
the dish and satellite.
  • After mounting the dish (ex. wall), make sure that it is stable.
  • The feedhorn (LNB) should be secured properly, the inside of its assembly should be dry always, check the sealant or add one.

Wednesday, February 25, 2009

Sky high Terms


This is the best (in my opinion) visual explanation of what the Azimuth and Elevation relate to. They define location of an object in the sky to the origin (center of the illustration). Azimuth angle reference is the North (value is 0), for this one any working compass will do in locating Agila 2 ( its 146 E right!). Already checked it and its right! my satellite dish is facing that way. As for elevation from the dish scale, my satellite dish elevation actual setting is 55 but from calculation it's 56.83, hhmmm! not exact but close, but I think it will do, anyways my TV reception is good for me.
I've found another helpful site in getting the calculation for azimuth and elevation angle it is dishpointer.com, all you need to enter you location, and the satellite you want to pinpoint for free to air (FTA) and the values for dish set up will be given. It is an excellent reference for us.

Sunday, February 22, 2009

My Place on Earth

From the information on google maps, data such as Azimuth,Elevation angle ang LNB tilt(skew) can be obtained. I supposed this is the more accurate data to set up and have to access the satellite (Agila 2) for a Free to Air (FTA) TV. I'm about to relate this on my Satellite dish set-up, if only I could comprehend what the term Azimuth, Elevation angle and LNB tilt (skew) means (Yaiks!). Well! I guest I just have to find out.

Saturday, February 21, 2009

Agila 2 "birds eye view"


Courtesy of satbeams.com, I'm able to at visualize the location of Agila 2. As long as Agila 2 moves with the same speed as the Earth revolves, the satellite will be appearing stationary in the sky they call it Geostationary (that's COOL!).
Judging from the view, we can fairly state that depending upon where you are compared to where the satellite is at, the direction and angles differs.

Friday, February 20, 2009

Agila 2 Information

Information gathered from google search on Agila 2. Its a bit of technical, hey! Its a Satellite.

Thursday, February 19, 2009

Know thy bird

How does a satellite TV works? One thing for sure it won't work if you don't know where is the location of a satellite (Great source of info - lyngsat.com). Installation set-up is not that hard, the challenge in this part is the mounting of the dish and where to point or face it properly.

In my location Laguna, Philippines the satellite that would be appropriate is the bird AGILA 2 (also Known as mabuhay 1), it's named after the endangered species of Philippine Eagle. It is a joint venture of collective of companies from Philippines, Indonesia and China for telecommunication purposes (launch site - 1997). Well, what do you know it has a life span of 15 years and will only last up to 2012.

I guess I have to maximize its use then, while it is up and running. I read a forum on a satellite hobbyist in philippines ( found during search ), it discusses there that the Agila 2 might not even reach 2012 since it is reported to have some major problems in the past that post a threat on its longevity, that is BAD NEWS! Just when I'm getting started. I wonder what happens after Agila 2? as of now, I wish the bird good health and goodluck (LOL!).

Sunday, February 15, 2009