Channel Master Ultra Mini 4 - 4-Port TV Antenna Distribution Amplifier, 8dB gain, Compatible with Non-Amplified TV Antennas, Cable TV and Internet Modems, Increases Signal Strength, Indoor/Outdoor

Installed on a Yagi style long range antenna, about 75-80 miles from transmission towers, but with a decent line of sight. With this unit I get about 65-70 channels, without it I'm lucky to get one or two. So it does function, and fairly well in my opinion.

I have an antenna that’s been up for a little over a year now. It’s on the garage with a 100 foot coax that goes into an amplifier and filter, which then goes into a Tablo device for Wi-Fi streaming. Over the winter, one station that is far from us, but we watch often became unwatchable. I bought this and put it in line on the tablet side of the coax, thinking it might boost it up, but it did not. Once the weather warmed up a bit, I repositioned the antenna to get the best signal possible without any amplification. Then I hooked up this amp at the antenna and was amazed at its capability. So, with the antenna followed by this amplifier, then across 100 feet of coax to another amplifier and filter, the TV signal is flawless.

I bought this unit to boost the TV signal to my old TV. The reception did not improved much, but it was not the antenna or amplifier's fault. It just happened to be time to upgrade the TV. After installing my new TV and plugging the same antenna and amplifier, the number of channels received quadrupled. The tunner in the new TV must be much more advanced. I'm very happy with the new situation.

I'm a Boomer, so I'm old enough to remember that the promise of cable TV was, "no commercials". Since they haven't lived up to that promise they don't get any of my money.I have a rooftop antenna and its coax cable runs into my utility room where it then splits to 4 locations in the house. I had only a passive 4-way splitter, my signal had really degraded and I was not looking forward to scaling the second story roof to check the antenna, which is only 5 years old. But, even my strongest broadcast signals were only in the 60 -70% quality range and I'd completely lost a number of UHF stations. So, after reading a lot of reviews, I took a shot and bought a "Channel Master 3414 4 Outputs Distribution Amplifier" from Amazon. Choosing it because the reviews and the price, because the power cable was included in that price, where with others it was a separate purchase.I've had it installed for two months now and I could not be happier with it. I live in a major metropolitan broadcast market so with the Channel Master I am now pulling in 40 different stations. All of the VHF stations are now showing 100% signal strength and signal quality and most of the UHF stations are showing the same. Even the very weakest UHF stations, which I couldn't even watch before as they had less that 3% signal quality, are now showing over 50% signal strength and over 30% signal quality, which for a digital transmission still gives you good picture and sound.So, if you want to have great reception from a rooftop antenna that is split and routed to numerous televisions, while telling the cable and satellite folks to take a hike, I highly recommend the "Channel Master 3414 4 Outputs Distribution Amplifier"Don't forget, if you are not going to use all the ports you will need to cap any unused ports with an F Type 75 Ohm Terminator cap or you could have signal loss even with the amplifier.UPDATE June 30, 2014: It's now well over a year since I installed the Channel Master amplifier and it's still doing a bang up job. Recently I had some work done on the house and decided while there were pros up on the ladders to have them replace my 6 year old "airplane" shaped antenna with a new Terrestrial Digital DB8 Multi-Directional 'Bowtie' UHF DTV Antenna. The new antenna is mounted about 5 feet above the roof peak, which is about 20 foot high. Living 8 miles from downtown Chicago the Channel Master/Terrestrial Digital DB8 combination is now pulling in 70 channels and when you discount the duplicates broadcasting on two frequencies, one HD one not and the weaker ones, I have well over 50 strong, viewable, channels. The interesting thing is I get different channels depending on the brand of the TV or converter box. For example with my Toshiba LED TV's tuner I get a series of Channel 13s but not the series of Channel 22s I get with the Zenith converter box in the same room which does not get the 13s. I've actually gotten a little hooked on the subtitled Korean historical costume dramas running on one of the Channel 24s I get. My only regret is I wish I'd put another 5 foot extension on the antenna mast; I think if I had I would probably be able to pull in the Northern Indiana stations around Merrillville, Hammond and Gary.So, I'm still 100% behind my 5 start ratting for the Channel Master.

This device functioned well and seems to be built to last. However, it did not pick up any more channels than the $3.00 TV signal amplifier we already had connected to our outdoor antenna. As a result, we returned the Channel Master and kept the plastic car key fob-sized unit we already owned.All things considered, we would have kept this unit if it had an LTE filter. While we do not need that feature – we've already tried one – it would still provide perceived added value compared to our other Chinese signal booster, which performs just as well in our area.I wouldn’t hesitate to buy this fine product if it needed to be installed in an attic or another location where I couldn't keep an eye on it.

Excellent! Channel Master is great. All of my cable products work. MoCa and cable modem work great. Nice and bright LED so one can tell it has power. Very nice product. TVs are clear and clean.