I'm brand-new to OTA with Dish on my 722. Bought an antenna today, getting ready for the probable shutdown of Fox next week. I'm in St. Louis, and am less than 20 miles from all of the network towers, so I figured an indoor model would be fine. Generally, it is. I'm getting a signal strength better than 75 on most channels. Strangely, though, the signal still drops out from time to time. It seems strange to me that the signals would drop out at this level. When it comes back, the level goes right back to 75. Would a signal amplifier help with this problem? Or is there something else I should try? I have moved the antenna to all convenient locations, save installing one in the attic, which isn't going to happen anytime soon. thanks.