Four-Star Seeker
Reviewed in Canada on January 19, 2022
I’ve experimented with cord cutting on and off, depending on what my cable company offers. Their latest deal is not great, so I put the antenna back up in a better spot and now get 40 channels 98% reliably on a Clearstream antenna I bought in 2011. We are located in a high spot on the east side of the Greater Toronto area, which means you can basically point your antenna due south to catch the CN Tower / Buffalo and get all the Canadian stations, plus the major US networks for free (something the cable company wanted me to now pay extra for).I don’t know if I really need this product. I did a channel scan before and after connecting it, and the channels were the same. I did split the signal on two TVs and over several dozen feet of cable, so it probably helped power through a split signal. If you need that only, you could probably skip this pre amp and just get a powered splitter for cheaper. On a side note, It still doesn’t give me NBC consistently, which seems to drop off once every few weeks (along with 49-3 only…weird).Conclusion: if you already have a higher gain, long distance directional antenna like the Clearstream, this probably won’t get you more channels, but will help get them more consistently. A strong antenna matters more than the pre amp.
Phillip
Reviewed in Canada on March 30, 2021
I recently installed a new TV antenna, I live in the windsor area and purchased this to help and bring in more channels and I really hoped it would bring in global TV 29.1 , it does really good in helping most channels come in clear but it don't help my 29.1 problem. I actually get 70 channels instead of 65 but I'm at that just this close situation of my 29.1 problem. But it does help make the channels clear and still don't regret buying it.
Nicklas R. Johnson
Reviewed in the United States on October 26, 2020
I got this preamplifier to overcome the loss suffered by a 100-foot run of coaxial cable, the insertion loss of a splitter, and the loss within the 1:4 splitter in a TiVo device. That's about 5dB of loss for the top of the band (600 MHz), 3.5 dB loss for the splitter, and about another 6.5 dB or so for the TiVo's circuitry, or about 15dB in total, give or take, a very good match for the 16dB of gain from this unit.One potential problem I was facing is that we live in an area where we receive VERY strong signals from some nearby stations, but weaker signals from other stations in the same direction (ie, low power stations) and weak signals off the main lobe of the antenna. A common problem with cheaper amplifiers is that they cannot tolerate incoming strong signals and can actually make reception worse because the amplifier saturates, producing a huge amount of noise which the receiver sees as a terrible signal.One also doesn't want to amplify a strong signal so much that it overloads the receivers' front ends.A medium-gain amplifier is ideal in a situation like this, provided that amplifier can tolerate strong incoming signals. I'm pleased to say that the medium gain Titan 2 v3 does a fine job of handling strong signals.One area where this amplifier doesn't do so well is with channel 36, which we actually receive better without the amplifier. I suspect the reason is that Channel Master has incorporated LTE 5G filtering in this unit (or to put it another way, they are band-pass filtering for DTV), and if they're using the same circuitry as in their LTE filter, this unfortunately attenuates channel 36 by about 3dB while trying to block frequencies above 614 MHz. This can be a pretty difficult problem to work around in filter design, so just be aware that if you have a channel 36 that is currently on the fringes, you might lose it with this amplifier rather than make it better.The good news is if this supposition is correct, you won't need a separate LTE filter if you're using this amplifier.Installation is straightforward; CM includes a power brick with a coaxial cable output, and a device which looks like a splitter, but is actually a power injector. It has three coaxial connections- one for the power brick, one that goes to your antenna, and one that goes to your receiver(s)/splitter(s). On the roof you just mount the amplifier to your antenna mast, facing down (so rain doesn't pool on the connectors). Make your two connections, and I also suggest using some self-adhesive rubber tape like Scotch 130C to keep moisture out.For DTV, don't expect your SNR to jump up by leaps and bounds with an amplifier. Remember that SNR is the Signal-to-Noise Ratio. Your amplifier is going to amplify signal, but it's also going to amplify noise at the antenna. It can help to overcome some loss of signal through your cable run. On average, I saw a 1-2 dB gain for our nearby weaker stations, about a 4 dB loss to our channel 36, and our stronger stations remained almost exactly the same. Sometimes that extra 1-2 dB for a weak station can mean a huge difference in stability, and that has been the case for my installation. Also if your receiver doesn't have the greatest sensitivity, amplifying enough to overcome the line & splitter loss can make a big difference to stability.The low-noise accolades for this amplifier also seem justified; were it noisy, I would have expected to see some loss of SNR for our stronger stations, but that has not been the case at all. All indications are this is a well-designed, well-thought-out amplifier.If I could fix one thing about it, it would be the DTV band-pass filter design, but to do so would almost certainly dramatically increase the complexity, cost and size of this device, and this would probably not be worthwhile in most cases.This would be an excellent addition to your cord-cutting off-air antenna installation if you are in a similar situation, with a lengthy cable run and multiple splitters (including those inside a device with multiple tuners).
closin
Reviewed in Canada on May 7, 2019
Unfortunate I had to return the product because it was really that good.My 7 year old 7778 preamp stopped working in mid january i,e mid winter and it is on a mast 15 ft on my roofthere was no way for me to go up the roof because of ice and cold weather.the next few days there was a lull and I was able to get up and removes the preamp and reconnect the cable to my 8 bay antenna.I opened the amp and carefully examined the small board with a bright light and noticed a small coil with one side unsoldered .I've use my soldering iron and resoldered the coil back .Now I was thinking of the hassle of going back up the house in case the unit wont work so I tried it at the entrance of the cable in the basement which is like 25 ft away and guess what it work and it work beautifully .I did a rescan and all 32 channels were coming in HD clear and beautiful ( NBC at 170 km away was in full HD , I live north of Toronto)So this is where the unit is going to be no need to have it close to the antenna.Thanks Channel Master.
Tommy in GA
Reviewed in the United States on November 8, 2016
I'm an electrical engineer. I designed cable TV amplifiers and other components and very complex commercial receiving systems. I live far out in the country 65 miles from Atlanta and 35 miles from Macon, and just over 150 miles from Savannah. The closest FM station is several miles away, and there are very few commercial transmitters around.Most people would think my location needs a high gain amplifier, but that is not true. I bought two of these lower gain version amplifiers to install at the antennas to just overcome feedline losses and firmly establish system noise figures at the antennas. I wanted no more gain than that, because excessive gain over a minimum never helps signal to noise and will often cause problems.My systems are eight bay bow tie arrays with eight bays at 60 feet toward Atlanta and eight bays at 200 feet toward Savannah. They both have distribution amplifiers at the house entrance.These amplifiers did exactly as planned. They have enough gain to establish system noise temperature by these mast head amplifiers, and not by coax or distribution amplifier noise temperature. A higher gain amp would NOT improve S/N even though I am way out in a rural location.I get all of the Atlanta stations well, with only the weaker of all stations WSB 2.1-2.3 ever having loss of signal. For some reason WSB has never been good here since going digital, so they have some fading with moist atmosphere, ducts, or fog. WSAV at almost 200 miles is rock solid, as are all the Macon stations.
EvilDrJerkBerg
Reviewed in the United States on January 12, 2015
This unit was easy to install and solved my parent's weak signal and pool signal quality issues. They have an older VHF/UHF antenna with about a 100' cable run to a un-powered 4-way splitter. Each run out of the splitter was another 100' or so. Before installation they had a signal quality of 50% and a signal strength of maybe 55-60% on each TV. The signal had lots of drop-outs, and a couple of channels were completely unwatchable. After installation signal quality was at 100% and signal strength was a solid 85% on each TV. The picture looks great on all channels and has no drop-outs. They are very happy with this unit.
srm
Reviewed in Canada on March 22, 2014
I bought this to stabilize channels I got and to help bring in the ones that would pixelate. I always have two channels, cbc kingston and global. Towers are within 5 miles so signal is always strong. I can weather permitting pull in over 50 channels mostly at night. The cm7778 stabilized the upper uhf channels that were in and out. I chose this over the cm7777 as after reading it might over amplify the strong channels I have.Just note that this will NOT bring in channels with no signal, only help weak signal ones.This unit is very well built, base made of cast metal not plastic and easy to hook up, the directions are off a bit with the picture of the unit in place, cables are reversed, I just followed the written directions. I now plan on getting a better antenna and maybe a rotor. I have sattelite with no hd, and love watching especially hockey in hd.Amazon is a great place to shop, always great service.
Marcel Robichaud
Reviewed in Canada on November 20, 2014
Being located at Montreal's south-shore between Montreal, Burlington and Plattsburgh's towers, this amp provides the stability of 29 channels. Pointing my antenna down south, I was getting 27 channels prior but 10 of them were unstable, showing pixilation or blacking out on occasion. All of them are nice and clear now with the exception of 2 of them that are on and off when on occasion when whether is bad. The quality of the signal is so clear on my 4K TV that I didn't even think twice of cutting tv service. Kids missed there specialty channels for a few days but I never heard anything about it since. Remember when you could flip over the channels in less than a minute to see what playing? If needed, the built-in guide from the TV provides show information as the info is encoded in the OTA signal but I find it more convenient to flip through and check out the guide If I want details. Definitely a must for densely populated areas. To get a bigger boost, get the other version of this AMP but it will oversaturate signals if they are already strong.