Are you willing to consider moving the antenna outside? You would likely see significant improvement in reception reliability. The roof structure hinders reception though the exact effect can vary dramatically based on the materials used in construction. There's no hard/fast rule re. clearance from structures in an attic... Test various locations to see what works best in your situation.
The DB4e as an excellent antenna for real channels 14 and up... But not a good choice for VHF reception. Consider adding a separate VHF antenna such as the Antennas Direct ClearStream5 or the Stellar Labs 30-2475. Either antenna can be combined with the existing UHF using a UVSJ ( example: https://store.antennasdirect.com/antenna-combiner.html ) With separate UHF and VHF antennas you get more flexibility re. placement and aim.
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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; 13-Dec-2019 at 6:34 PM.
Reason: added comments
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