Channel Master TV Antenna PreAmp 1-1-Port TV Antenna Pre-Amplifier, Built-in LTE Filter, 17-30dB Gain, Compatible with Non-Amplified TV Antennas, Increases Signal Strength, Indoor/Outdoor

This powered TV amplifier works extremely well. At high gain, it increased the number of digital channels received from 20 to 38 and significantly improved picture quality to cable channel level. The device offers 2 levels of amplification: low and high gain. High gain provided the best results for me given my antenna being located in the attic and the distance to the broadcasting towers (45-55 miles). It was easy to install and very well made. I highly recommend the product.

After almost 2 years of usage, the pre-amp is still working. Brings in channels from 50 miles away. Even in heavy rain. Build quality is solid. I like the LED indicator that tells you your power is on and that you have wire continuity to the amp. This really helps with diagnostics. I have purchased less expensive models that did not work at all. Very happy, don't worry about the price, you get what you pay for.

Brought in the weaker signals. It is well constructed and built to last. It was easy to hook up and once connected it worked.

It helped to boost some of the slightly weaker channels. I'm about 45 miles from the transmitters and I used a cheap directional antenna and get all channels in my area except 4 that are grouped in the 11.x range. I didn't expect it to work miracles with that since most people in my area have trouble getting that one. I also have a hill blocking my antenna some so I'm happy with what it's doing.

I live between two major cities. towers are 45 miles north and 65 miles south. Had no issues with north tower but the south tower station faded in and out. Inserted this amp and all station from south come in great. I get over 200 channels with great picture. This device helped my reception significantly. Happy with this product an recommend it to a friend.

This amp works very well to extend the reception of the passive antenna at our rural home. We still have 3 open outputs for the bedrooms and kitchen and we'll get to those soon. This product is built to last a lifetime with quality materials and it definitely does the job as advertised.

Prior to installing this preamp, I was getting 136 channels on my HDHomeRun. Not all 136 channels were watchable though. I'm roughly 35-50 miles away from the towers. Reception mapping tools online show my reception will be "fair" or "weak" on basically all channels. My antenna is a Range Xperts Long Range antenna. I have a relatively short cable run (about 25ft) inside to the HDHomeRun.First, I'll note you need an extra coax cable than what comes with this kit. It includes 1 coax cable, but since you need to use their powered splitter, it requires another cable. I had to order a new cable just to try this preamp.Anyway, I installed it as the instructions show and did a scan. I got 20 channels with high gain. I switched it to low gain and got around 40 channels. All the channels I tried with the preamp were glitchy, even the ones that were solid before.Side note: the LED indicator light is supposed to change from green (low gain) to red (high gain) but mine stayed green. I noticed another review that mentioned the same.I tried researching my issue and the only conclusion I came to was that this preamp adds too much gain to my signal and overwhelms the HDHomeRun tuner. This doesn't make a lot of sense since the signal strength is only "fair" for most channels. Maybe the definition of "fair" is too vague.It'd be helpful if the manufacturer specified the conditions when it's appropriate to use this preamp. Not only is it expensive, but it typically takes most people a lot of time to add or change their antenna setup considering when done right, they are high off the ground and not easily accessible.Based on other reviews, this preamp seems to work for the most part. However, it obviously didn't work for me and in fact, made my reception way worse. I wish other reviewers would list important details, like how far their towers are, their cabling setup, etc. I sent this back for a refund.

Best item you can buy IF you want lots of CLEAR TV!! Awesome improvement !!!