I've been using the Channel Master Amplify for several years now, and it's hands down one of the best TV antenna preamplifiers out there. It has everything you'd want in a quality pre-amp: adjustable medium-to-high gain (17–30 dB), built-in LTE/5G/FM filtering to cut interference, and the flexibility of both power over coax and direct-connect power options.This preamp is designed exactly how a good one should be: it's meant to preserve and boost a good signal at the source, not magically create one from nothing. If your antenna isn't receiving a usable signal in the first place, no preamp—this one or any other—will fix that. The best a preamp can do is deliver to your TV the same signal quality your antenna is receiving at the source (e.g., if you connected your TV directly to the antenna outdoors).Some negative reviews here seem to misunderstand how preamps work. If someone installs this amp and still can’t get good results, the problem is likely the antenna or it's placement, not the amp. A negative review of this product only holds weight if the reviewer got clearly better results with a different brand amplifier—which I highly doubt in most cases, because physics is physics. This amp is top-tier in performance and features.For anyone who understands what a preamp can (and can’t) do, and installs it correctly (especially placing it close to the antenna), this is a fantastic piece of equipment. Highly recommended.

I've been using a flat fractal-style TV antenna for my living room TV since about 2015 and it did a great job picking up local stations about 99% of the time. I later added a SiliconDust HD HomeRun into the mix so I could share the signal to all the TVs in the house via my Emby media server.Unfortunately, due to changes in the location of local broadcast towers, I had to locate the antenna in my living room in an annoying location for it to work properly. I purchased this amp and a 'matching' Channel Master STEALTHtenna (see my review on that product).I initially installed the booster in high-gain mode and went from 11 channels to 15! This was a great improvement - and it worked great... for a while.Fast forward to last week and I realized I couldn't tune in some of the local channels, but could still see some more distant ones. I pull out the iPhone and fire up "Signal GH" again and I see that the signal strength is 100% but my signal quality is really low. Since I've been working with TV antennas long enough, I see the problem and realize what an ID:10T I've been - and immediately proceed to flip the booster to low-gain mode.Now I get *25* channels many with 100% signal strength and near 100% signal quality. I can now see all the local repeaters that were interfering with the main signal. I also now receive several channels from over 100 miles away, past the local group of towers. I also now see a host of channels from about 65 miles away, picked up on the BACK side of the antenna. Of the 25 channels I can now see, about 17 are worth keeping in my channel lineup.So kids, the moral of the story: don't be like me and immediately assume that you need 30db of boost when 17db is plenty.-------------------------My notes on installation:Installation is a snap... assuming you've installed an outdoor antenna before. I mounted my new STEALTHtenna and pre-amp on the j-mount for my old satellite dish. (after removing the dish of course)I installed short (18-inch) pigtail cable between the antenna to the correct side of the pre-amp. Then connected the longer run to the indoors via a grounded lightning suppressor to the (included) power injector. The injector is powered by a USB adapter (cable and adapter included.)For the main run, I reused the high-quality quad-shielded RG6 I previously installed for my satellite dish. All terminations have good quality waterproof compression F connectors. I usually seal everything with waterproof tape for extra protection, but I couldn't find my roll of coax tape - so I may come back to that later if needed. Even the local cable companies never seem to use the tape anymore since THEY switched to waterproof connectors, so maybe I don't either.Using the included zip-ties, I attached the the pre-amp to the base of the j-pole below the antenna. I don't really like how it looks, so I may re-mount it later on - especially if I ultimately decide to install a taller mount or an extension pole.

Installed the item as per instructions. Scanned for channels and only received 1 channel, compared to 18 channels I received before installing the item. I tried both high and low adjustments and had the same results. By installing this device I lost channels instead of gaining some which were not clear before the installation. I removed it and re-installed the device which came with my antenna and was able to regain the lost channels. I do not recommend.

I live in the outskirts of Hamilton and couldn’t get any Toronto stations very well. As soon as I hooked this up I gained two channels. 57 and 9 (cfto) are crystal clear clear. It also strengthen my buffalo stations. All I can say is this unit Performance as well as they say it does.

I had high expectations from this device after watching many reviews. I did spent time to investigate if this product would do any good in my case and decided to go for it. I have an average outdoor antenna (clearstream c4-v-cjm) attached to the side of my house and about 100 ft cable with a two-output splitter for two TVs. In the high gain mode, I was able to go from 15 channels to 32. It improved reception of the channels I had issues with before. I highly recommend the product*.* if you live in i.e. a rural area where you don't have any reception at all - don't assume the amp will magically bring the broadcasting stations closer - you still have to be within the range.

The quality of the amplification and its filtering system are both very good. The sturdiness and quality of the box is very strong and probably will withstand good temp. variations. Finally, in my particular case, around the Montreal, Qc. area , I was amazed to find that I did not have to use the second setting on db gain ( the higher one) to get a good number of signals from the Burlington area. Mind you I have quite a big and powerful antenna that I designed and built myself as per tips on U-tube from an old timer from down south in the USA, and this of course beats many commercially sold models. Bye All !!! mfm

All I can say is WOW! Replaced a very poorly made Winegard powered preamp with this Channel master beauty. The Winegaurd power unit was poorly made and kept shorting out ...I actually had two units and both had the same issue. When functioning properly the wineguard barely pulled in most of the U.S. channels. In bad weather, most stopped receiving. The channel master is way better built, the power supply is solid. I am on the lake in Toronto. See the pic, that’s Buffalo / Niagara in the background. I now get every single U.S. station in Buffalo NY, continuously and without any interference ...this thing works like a charm. It is set on the low amp setting. Very easy to setup. The indicator light on the amp at the antenna end is a nice touch. I am so glad I got this product.

Works very well with Channel Master’s EXTREMEtenna 80. I am very happy with my purchase.I decided to put up an antenna after Direct TV decided to stop carrying the local Fox and NBC stations due to a contract dispute.I first purchased an antenna advertised to receive signals from 150 miles away. I used my umbrella stand and placed it on a pole on my deck. It didn’t work very well but I was happy it received the local Fox station so I could watch most of the Seahawks games again. I also received Telemundo and ION. However, I couldn’t get any other major networks. Hoping to get a few more channels, I purchased a Clearstream 2Max that I hooked up a Winegard LNA-200 Boost XT HDTV Preamp. Unfortunately, it didn’t do any better than my cheap 150 mile antenna. I then tried out a small RCA Yagi and connected it to the wine guard preamp. I ended up getting a total of 7 stations including 4 additional PBS stations. It would occasionally pull in another 9 stations including ABC and/or CBS, but not often. NBC was also impossible to get with the yagi setup.Determined to get more stations, I began researching how to get better reception. I learned a lot from watching You Tube videos by a guy named Danny Hodges. He has a You Tube Channel called Southern Ideas and it has a lot of good information about antennas including how to make your own. I did what he said and made an an antenna out of wood with copper whiskers. When I first tried it out with the Wineguard Preamp, I got 16 stations including CBS and ABC. I still couldn’t get NBC. It performed about the same as the RCA yagi except it did a better job maintaining the signal for CBS (i.e. the signal for CBS was much stronger and didn’t constantly disappear).While testing alternative antennas, I wasn’t paying enough attention and I connected the wire that was supposed to be going to the transformer on the antenna to the connector on the Wineguard preamp that’s was going to the tv. I also connected the wire that was supposed to be going to the TV to the other connector on the preamp. Unfortunately, I fried the Wineguard preamp.Because my homemade copper whisker antenna performed the best of all the antennas I tested, I decided to buy the Channel Master EXTREMEtenna 80 which was bigger but similar in design to my homemade antenna. I also bought the channel master preamp because of its variable db gain feature and It appeared to be fairly durable based on the reviews I read. Anyhow, I am so glad I bought Channel Master’s antenna and preamp. I live in a somewhat low lying area with hills around me and tv towers that are approximately 40 miles away. I now get 18 channels including all the major networks (ABC, CBS, FOX, NBC, etc. I now almost never lose reception of any of my stations other than occasionally losing NBC (channel 25.1 and its other station 25.3). Still NBC come in well most of the time. The antenna is still attached to the pole on my deck and I am no longer paying Direct TV $130.00 a month.