They are fantastic. I used one at home to fix my antenna problems. Hooked it to a 12v supply and sat on the roof with it to fine tune my antennas. As a side note, I fused around with 2 real nice antennas designed for VHF/UHF. I researched everything. Still had problems. After I hooked up the Sensor Pro, I still had issues. I removed the two antennas I had, the combiner, and all the other******that connected it. I went to my shed and grabbed my old batwing antenna and connected it. Well, my db level was twice has high and I picked up every possible station with this only one antenna. In the end, I used the Sensor Pro to put it in the right direction then removed it and put on the typical amplifier. The batwing is fantastic vs. any other typical tv antenna I have found.