It Defends were you live. But the most common DTH is Dish Tv. Has i am living in dubai UAE i have installed both Dish Tru HD and Airtel Hd both have a very strong signal here. But has for you live in KSA i dont think you can get a good signal for Airtel HD but dish tru Hd will work fine but not sure that you will get Nss 6 in your area. Better ask a dish technician whether which dth will work in your Area.