Help me plz

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Dear mery pas aik 7ft solid dish hai, us py main ne asia5sat lgya to cricket feed b recive kie. Lakin us dish sy bader26e k sirf 70 channel recieve kie jub ki 5ft py bader k 250 channel aye the.
Problem yehe hai k dish c band ka result good lakin ku band ka koi result ne hai.

why??? kia koi techinical problem hi?

So plz help me.