This amplifier solved a problem with a particular station who's signal had recently become pixelated and unusable. We're located about 12 miles north of the antenna farm from where almost every Houston TV station broadcasts its programming. Using a Channel Master CM-2016 "35 mile" antenna mounted in the attic, carefully aimed and feeding a PCT 8 port drop amp, the TV's signal meter indicated a high of 33, the boundary of the red and orange ranges on the scale, (still mostly OK to watch) dropping to 28 (solid red area of the scale) or less which was either highly pixelated or just a blank screen for this particular station (49-1 iON). Most of the other stations register in the 70 to 94 (orange/green scale) range and have no signal strength issues. I called the station's engineer to see if they were having any problems or had made any changes and he assured me that everything was normal on their end.

It literally took less than two minutes to install the LNA-100 between the antenna cable and the input of the drop amp and the problem was solved instantly. The TV's signal meter now indicates between 48 to 51 and the picture is as solid as any other channel. That's a 30% increase of whatever signal strength/quality metric the TV is measuring and delivers a normal viewing experience. Now that the TV frequencies above RF channel 50 have been reallocated to 4G LTE service I suspect that some of the nearby cell towers are contributing to the occasional pixelation on a number of channels which we've only seen recently. To that end I've ordered a Channel Master 4G LTE filter as well (don't use the cheaper one from the UK as it doesn't block 50-57).

This did what it was supposed to do--increase signal strength. Unfortunately my TV tells me signal-to-noise ratio, not signal strength, so this Winegard amplifier at first appeared to doing nothing. So don't be fooled ( I wasn't for long). My problem is, and yours may be, that the signal-to-noise ratio from the antenna is too low. No amplifier can fix that. You either need to re-aim the antenna (my problem) or buy a larger, better Winegard antenna. (I don't work for them but they make good antennas.)

A great little amplifier!
I have a large indoor antenna in my attic feeding 3 TVs. I am in the city, so all of the TV stations are close. The splitter has 8dB loss.
The closest, and oldest, TV sometimes has problems with one of the major channels. It works well enough if I fed just that TV only, but once I put it behind the splitter, there are occasional issues. I've adjusted the antenna, and tried another splitter, and checked the cable, and even tried three different amplifiers. An RCA amplifier that claimed 12 dB of gain worked best of all. Even then, on cold or rainy nights, it sometimes still had problems on that one channel.

After trying everything else that I could think of, I gave up and bought this 4th amplifier. Luckily it arrived on a rainy night when I was having problems. What a difference. The problem channel went from Bad to Normal on the older set, and from Normal to half way to Best on the other TVs.
I just finished a Search For Channels, and I've gone from 19 to 23 channels. All channels are Normal or above, and all are clear.
This amplifier really works!

Used as intended at the TV it is useful. It will weaken the strongest signals and boost the weaker ones. Couldn't understand this until I measured the signal wire. It is only.022 in diameter. Probably to keep from feeding too much of a strong signal and damaging a tuner. This being the case it is not a good choice for an attic antenna pre-amplifier or a distribution amplifier. My old HDA-100 delivered substantially more signal strength. It ended up in the closet.

It definitely boosted the signal and worth the money. I would have given it a 5 start but it is a bad design. It is designed to be placed at the input of the TV rather than at the source of the signal...like at the antenna output or at the wall plate. So all if a week signal is coming from the antenna (or wall plate) as the signal travels through the coax it is collecting more noise antil it reaches the TV (and lna) where by now the week signal is in the presence of more noise...so the LNA ends up amplifying the week signal AND the noise. If the LNA would have been at the antenna, then thesignal would have been amplified and then the noise that get accumulated as the signal travela across the coax would not get amplified...so the ratio of signal power to noise power would be larger than in the former case.