antenna placement in front of old dish

[sglende1]

Let me start off by saying I live way out in the country. We have no cable or fiber...

I get my internet from Virgin Mobil using a vertical antenna mounted on a pole outside of the house.. The freqs used are 825/1900 ... Now for the question: Would placing an old Primestar 1 meter dish behind the antenna allow me any gain if I get the focal point correct? I am just inside of the footprint by 100 feet so my signal levels are very low.

This is a bad picture but it projects my idea...

Thanks for your help!