DISH™ OTA Support and Discussion Forum
Let's see if I understand your problems.
You have a Hopper3? and 4 joeys an old Radio Shack unamplified Omni-directional antenna in the attic in Buffalo, N.Y.
Your problem is with DISH dual OTA dongle poor reception.
Your Directv tuner is not compatible don't use it.
Psmith guessed at...