Sometimes when your dish(circular shape antenna made of metal) stop getting signals due to many reasons like:-
1) Somehow direction of dish changed dues to wind/storm or someone got suddenly hit by dish and changed the direction
2) weather conditions arn't good at all, sky is full of clouds and chances of rain or in rainy session.
3) something is obstructing the path of the signal may be wall of you neighbor or your neighbor is constructing the house and due increasing the height of their house
4) connection got loosen at dish LNB(round cylinderical thing which is pointed toward plate(dish) or at end of STB check all connection and reconnect them)
5)Your STB goes faulty which cause unable to convert signals into media at you tv
6) Someone change by mistake or forcefully the frequency setting in STB.
call your provider they will tell you some steps to follow if it wont works it means your dish direction is changed.
You an install dish by urself from one wall to another but there is only one difference is company guy who install the dish has Satellite finder meter and you dont have. This is how company takes advantage of you and charge you to install dish
before doing anything you have to homework on whole setup what is LNB what is STB, how dish catches the signals etc.
Need:-
One thing which you want is patience, without patience you cant install it.
It may take 3-5Hrs at initially if everything is good, ones you know the steps you can install it without any problem.
One person near Tv because when your dish is aligned in right direction your Tv will start broadcasting the channels.
You have find the direction for you satellite which your work easier each companies has satellite in either in east west north south and in between them also which doesnt changes. Example:-tata sky satellite is in SE 83 angle.
Below picture of Satellite finder meter which is used to find the signals it works with all different companies Dish installation
you can get this from electronics store or at online website starting price Rs.200 or $3 to $4 easily.
It has two terminal one for LNB and one for STB, you have to connect STB coming wire into STB terminal in Satellite meter (must be written on back side) and your meter will start working from STB power.
One thing you have to do is a small 2m wire with connectors attached at the end of this similar like STB coming wire connector.This part will connect your LNB to Satellite meter.
Now your circuit will be completed after connecting meter in between LNB and STB it works like mediator.
Adjust the Nob till reading scale reaches to 5 (you can increase it to 7-8 for more sensitivity).
Now move your dish up and down , left and right so meter scale start deflecting.
When meter scale shows maximum reading it means your dish got the right direction of signals from satellite. Now contact that person who is near Tv he/she will tell that Tv start reception of signals or not.
Sorry if i have mistaken somewhere more detailed post will be updated soon, i hope i will guide you more in easy way.
