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DTV/cell phone reception advise and products
Even at the default heigth the UP7 is more than enough antenna to hold reception on the channels you are receiving with drop out conditions.
Your problem could be in your matching transformer or connections somewhere in your coax. If you do a temporary hook up with a new transformer and coax all the way to the DTV set you can eliminate this as a possible source of your problem.
If your set has a signal meter check the level. If it is low or below 50% then perhaps an antenna change or an amplifier add on is in order. If it is high or 70-90% and is still droping out the antenna is not your problem.
Many other things can cause these drop outs, but the most common interference is electrical in nature. Many of the electrical interference issues can be resolved by proper grounding of your coax with a ground block connected to your electric service ground.
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