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There are several variations of this concept... Generally, the part(s) inside the building are power related, and are designed to send power up to the mast mounted amplifier unit.
The mast mounted unit may have one or two inputs. If two, one is usually for VHF and the other for UHF. There can be any combination of 300 ohm twin-lead or 75 ohm coax input and output. It sounds like you may have a short section of 300 ohm twin-lead from the antenna to the amplifier and the output is 75 ohm coax.
I would be very curious to know how your system performs when you remove the amp and power supply. If there is a short section of twin-lead between the antenna and amp now, a matching transformer will be needed.
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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; 1-Jun-2011 at 9:59 PM.
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