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Re. cabling, shielding in particular; For OTA reception, reliable connections are vital. An open or high resistance shield connection can easily cause problems with some, but not all channels. Of course, if the connection is bad enough, all channels can be affected.
However, you don't need to spend extra money on quad-shielding because the antenna end of the coax is intentionally wide open to the environment... It's connection to the antenna is purposely 'un-shielded' so that OTA signals can be conducted into the coax. Satellite systems on the other hand, need the extra shielding because the LNB shifts the frequency of the signal coming down from the satellite which is from 4 to 18 GHz (C and Ku Bands) down to a range below 3 GHz. The LNB to satellite receiver connection is therefor using frequencies that conflict with various terrestrial services. The added shielding of RG-6Q protects the satellite system and terrestrial systems from interfering with each other. Satellite system designers need to treat the LNB to receiver connection as a closed system. On the other hand, OTA reception and distribution to the tuners is an example of an 'open' system.
If you suspect weathered, damaged or poor quality cable... Or you suspect unreliable connections, then yes, replace the suspect cable with a good quality double shielded run of RG-6 / RG-6U.
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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; 29-Jan-2015 at 2:24 AM.
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