What should I do if my TV displays the message “NO SIGNAL”?

It’s best to start by checking the connections behind the TV, set-top box, or other component.
Check to see that the F-connector is attached in the correct manner. Verify that the cables do not have any kinks in them as well.
checking to see that the cables are all connected in the correct manner.
Check to see if it is on the correct source using the TV’s source (AV,HDMI)

If you have a signal booster connected, you might want to try disconnecting it and connecting the antenna cable directly to your TV, recorder, or receiver instead.
Be sure to check that the cable is properly connected to the dish.

Call or visit the nearest service center if there is a similar issue.