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Have you ever tried the CM3016 alone? That's with no amplifier or any of it's power supply parts, no splitter, just one TV using one section of coax. It should be able to do the job with no need for the CM4228. If the test does not go well, consider the attic a problematic location, indicating the need to test reception with the CM3016 outside, clear of obstructions. But if that tests well, add the splitter back along with the second TV.
The number of splices is a bit of a concern. Ideally, use no splices. If the test of antenna > coax > TV goes well but adding splices back into the system fails, you know you'll need to repair the splice connection or better, replace the cobbled combination of pieces with one new section of coax.
The CM7777 is a fringe / weak signal amplifier. If you need any amplifier I would suggest a distribution amplifier such as the CM3410 which can handle much stronger signals levels. But again, try simplifying the system, to one antenna, some coax and a TV...
Last edited by GroundUrMast; 4-Nov-2012 at 6:34 PM.
Reason: comment re. splices & CM7777
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