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Coax inside or outside the mast is insignificant. If the coax and connectors are in good condition and the connections are solid, even the most critical measurements will not show any difference between the in/out placement. The advantage with coax inside the mast is physical protection.
When you say channel 9 is breaking up, are you referring to real channel 40?
Signal levels are strong enough to potentially cause an amplifier to overload. The last thing you need is two amplifiers in the system. How does the system perform with the existing amplifier completely removed?
How are the two antennas combined? Depending on your answer, you may need to consider changes in this area. This is were I suspect your real trouble lies.
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If the well is dry and you don't see rain on the horizon, you'll need to dig the hole deeper. (If the antenna can't get the job done, an amp won't fix it.)
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Last edited by GroundUrMast; 22-Apr-2011 at 4:56 PM.
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