SureCall Fusion4Home Cell Phone Signal Booster up to 3000 sq ft, Boosts 5G/4G LTE, Yagi Outdoor Antenna, Home & Office Multi-User All Carrier, Verizon AT&T Sprint T-Mobile, FCC Approved, USA Company

My signal was hit-or-miss before I set up this booster. I was frustrated very often, about half the time, due to poor signal -- 4G would come, and then it would go without anything to indicate why it was good one minute, then lousy for the next couple hours. My office/home is about 5 miles from the nearest tower. The property has sharply inclined hills on both sides, so I assumed that I was not likely to get any help from any type of antenna, regardless....but I was desperate. Cable internet is not in the budget, if I could help it, especially since I am hardly at the property, except perhaps half the time of the year. So, I figured that I will give this antenna a try, in spite of my doubts and pessimism.I mounted the outdoor Yagi on top of a metal roof garage, the highest point of my property. The structures of the property, using https://www.amazon.com/gp/product/B001V6QZR4/ref=oh_aui_detailpage_o02_s01?ie=UTF8&psc=1. I mounted it straight to the roof, about a foot back from the edge of roof, wondering if the close proximity of the metal would diminish the ability of this antenna. I pointed the yagi in the approximate location of the nearest tower, using Network Cell Info Lite app (which I highly recommend, along with the Speecheck Pro app. Both are the proofs that I needed to verify if this antenna was effective, or not.....and I have about a hundred results so far, of tangible numbers that I can understand).Then, I ran the coax (which comes with the kit) down into the garage, where I have never, ever, been able to have broadband and occasionally drop calls, about 80% of the time if I go too far into the garage. So, I mounted the booster in the furthest and darkest corner of the garage, turned it on, watched the lights flashing on it for about a minute (the booklet states that the lights indicate that it is tuning itself during this time). And, withing thirty seconds, I watched my celluar bars go from 0 to 3. I tried the internet; and was able to get pages to load. My skepticism was weakened a little. But, this garage is not where I wanted to booster. So, I relocated the booster to the adjacent garage, which has the office/apartment attached. The booster worked worked well in that garage, too (where I also had the hardest of times getting calls or internet, before). That was as far as the 50 foot coax would stretch; and my desk was on the other side of an interior wall, approximately 40 feet further. The booster did not put-out or receive that far, it seemed. So I placed an additional 50 foot of coax on the yagi side, drilled a hole through the wall, ran the coax through the wall, and placed the booster on my desk. My phone sets beside it almost all the time, even right now as I type this review.The "tests". I have run many, many tests by using Network Cell Info Lite app and the Speedcheck Pro app, The first app shows me real numbers that my phone has better signal (sometimes much better signal) when the booster is on and nearby; and the second app, Speedcheck Pro give me the real numbers of how "fast" the internet that I have -- how fast, or slow, it is operating. And, so far, I have many, many positive results of how effective this booster is, according to my situation. I have tried many times to unprove the results turning it on and off, removing the whip antenna, etc.....and almost every time, my signal is stronger with the booster, rather than without.The whip antenna on the booster seems to have a coverage of only approximately 50 square feet, but i have not tested that very much, yet, I purchased the Sure Call dome antenna, but it was less effective by the tests I ran. https://www.amazon.com/gp/product/B0076CH4B8/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1All in all, I am very impressed with the effectiveness of this antenna. I tested it, and I tested it....and, so far, (I've had it for a week) I am super-exhilarated that it seems to work very well, except when it rains. Last night, was the first time that it rained during these tests; and the tests were not positive during the rain storm. Other than that, this booster has outperformed no-booster about 95% of the time of all the controlled tests that I performed.

Installation is straightforward, but can be a bit tedious to find the right cell tower information, location, etc. and get the antenna set up / pointed correctly. Once in place, the app provides good information as well. Users should be aware that they may need to cycle through airplane mode to get their device to connect through the booster, depending on their specific coverage situation. Customer service / technical support at SureCall was super!

Only covers about 13'x13' at full strength from the internal antenna. So about 1 bedroom. Beyond that I completely lose signal if I go about 10' more outside of that.Other than that I don't have the antenna mounted where I want yet but in it's temp home I have 4-5 bars on TMobile, 2-3 on AT&T but I am pointing at the T-Mobile tower because it's what I mainly use and it's faster.I had no bars at all on TMobile, sometimes I would need to drive miles before getting a signal so that's pretty damn impressive.AT&T had 1-3 bars depending on who's phone, time of day, etc, but the speeds always sucked.I have the external about 12' up but I plan to move it to the peak of the house soon. The cable that came with it is maxed out, so 30' or wherever it is in case someone was wondering about the separation. Basically opposite ends of this tiny house.The best speeds I got so far were around 5mb. Keep in mind these boosters aren't really for data speeds. If you want faster internet then invest in a good modem like a peplink or one of the other guys that cost $400-$1400, you will also need a 2x2 MIMO or 4x4 MIMO Antenna. At least you will have an idea where your tower is if you already purchased the booster and if you want both like I do (Cell and Data for home internet) then you will still need both and different antennas.I'm going to open up the base station and see if I can connect a different antenna for internal. If I can connect an antenna then I can just drill a hole in the plastic to mount it and it will look factory-ish.The house its used in is tiny, I was shocked it didn't even cover the first floor. It's basically just one room coverage so I'm unsure where this coverage quote is coming from in the item description and pictures.I'm just happy it actually works in contrast to nothing at all. Even if I do have to keep my phone in one room in the house. At least I'm not missing a bunch of calls and texts.Side note, yes I have RCS texts and calling over WiFi. However the only internet is DSL and it's on the edge of service so it's 10 down 1 up, barely 1 most times. Yes that is the real speeds. Anyway if you have an Android phone and if your internet isn't good enough, your RCS and VOLTE will fail. This was true for these phones using the following services. These are also some of the devices I have been testing with.T-MobileMintVerizonGoogle FiGoogle Voice-Pixel 6Pixel 4a 5gXiaomi 12TXiaomi 8The house is less than 25'x25'. So the booster covers about 25% of one floor, kind of sad really