I have this is attached to an attic antenna. Its 15 dB amplification counters losses due to splitting to two rooms (-3 dB) and splitters again in each room for tv and fm radio (another -3 dB). Throw in cable loss as well, and this does a great job of boosting before my splitting losses. The only downside is though it was in the weather-protected attic, I'm surprised it lasted only 2 years. However, I just ordered another and hope for a longer amp life.
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Channel Master Booster
October 11, 2018
Reviewer:
Lawrence from New Braunfels,Texas
It has allowed us to receive about 15 more and best investment in long time.
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Excellent
March 14, 2018
Reviewer:
Harper
Provides a very strong signal.
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Results after six weeks...
March 14, 2018
Reviewer:
wiske57 from Biloxi, MS
Has been in almost daily use since arriving six weeks ago and no problems. I live in an area where most stations are 25 to 60 miles distant and the signal gain is very noticeable w/o any equipment to measure with. Product is well made and suitable for outdoor use. Wouldn't hesitate to buy from Channel Master again. Thanks for a quality product Kevin Wise
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Problem solved.
December 18, 2017
Reviewer:
Ed from Scituate, RI
Old signal enhancer burnt out. Replaced with Ultra Mini. Just attach the coaxial cables, plug it in. Three TVs in our home all work well. We are in a fringe reception area -- with the ultra mini we get 44 channels, all high quality picture and sound. We have a rooftop antenna on a ,long post.
Good advice from customer service, they know their products. Prompt delivery.
Great performance but lasted 2 years 
Channel Master Booster