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Channel Master

Channel Master CM-7778V3, Titan 2 Medium-Gain Mast Mounted Preamplifier for TV Antennas (Version 3)

    • Based on 813 reviews
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Features

  • Improves Signal Quality, Decreases Pixilation and May Increase Number of Channels
  • 16dB Gain with Ultra Low Noise [Typically More than Enough Boost to Pick Up Weak Signals Without Risking Over Amplification of Signals that are Already Strong]
  • Selectable FM Signal Pass-Through, Heavy-Duty Outdoor Rated Housing with Rubber Weather Seal to Protect Against Moisture
  • RF Shielding to Protect Against Interference
  • Includes Mast Mounting U-Bolt, Power Inserter, Power Adapter, 6 ft Coaxial Cable and an Instruction Manual

Description

The Channel Master preamplifier will boost digital and HD signals received by your TV antenna. This antenna amplifier is a medium gain, low noise booster designed for use in areas that have both strong and weak signals present. Channel Master Titan 2 preamplifiers include a heavy-duty, moisture resistant housing to allow for outdoor installation in any climate. For optimal performance, install the preamplifier on a mast as close to the antenna as possible using the included U-bolt mounting hardware. This preamp is a perfect choice if you are able to receive strong signal local channels just fine but have trouble receiving channels with weaker signal strengths. Preamplifiers are also used if you anticipate distributing your signal with a digital splitter to multiple outlets throughout your house as splitters reduce the signal strength available at each output.


Product Dimensions: 3.25 x 7.75 x 5.25 inches


Item Weight: 1 pounds


Manufacturer: Channel Master


Item model number: CM-7778


Is Discontinued By Manufacturer: No


Date First Available: January 30, 2008


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Top Amazon Reviews

    • Day and Night. Corrected all the issues
I this is lengthy, but I’ve gone thru so many steps to improve OTA reception FIRST we’re am I I reside in the LA area with 140+ channel OTA metro area. On a perfect day the vast majority are 16db signal. But they drift on and off. And I don’t get 140+ Second I’ve tried raising the antenna (the antenna has a good reception pattern). Forget distance it’s rated 80 miles but that’s just a gauge that isn’t factual. My antenna is 12’ up now, the HOA limits height and location. Raising it helped, but it’s a hit and miss. And I gain a few more channels. But still getting the pixelation randomly… ugh. Some times the station is just trash I’m guessing it’s the urban blockage of trees, highways, airports, aircraft… just the large amount of radio interference we deal with cell towers, 4 &5G… on and on and on. That goes for urban areas. And now weather plays a role.. rain, just stops signal! Just can’t win. Third I tried replacing my cable to a better quality RG6. Figured it’s yet another step to receive a decent picture. And replace the transformer with a channel master transformer. Straight out the transformer fixed several problems. It seem to stop the local under 30 mile from coming and going the original transformer that came with the antenna is just garbage. And the cable I’m sure helped the delivery of the signal DB And the coax ( I replaced RG 6 for and better grade) did improve the issues above, but it looks better and ensures top end to end service. But the issues of pixelated channels still was present. Fourth and final… Purchased the preamp Titan 2 and bang everything was solve. Excellent DB signal for all channels, the one 80 miles away are ar 21-25db now. Yea I spent a sum of money in the steps to get excellent OTA, but figure this I cut out $2400 in cable service for just basic cable ( yea I know that’s a ton) the main reason for the process I went thru. Estimate I spent about $300 for the antenna, coaxx2, the preamp. Don’t forget to do the search on your TV to home in the stations. It’s very important. They can drift and you will discover even more channels which I did now 148. All I can say is Amazing. ... show more
Reviewed in the United States on March 16, 2023 by Laura
    • Excellent in near/far situations; attenuates channel 36 somewhat.
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). ... show more
Reviewed in the United States on October 26, 2020 by Nicklas R. Johnson
    • works well; relatively easy to set up
I used this to boost out indoor antenna. It did improve and stabilize our signals.
Reviewed in the United States on June 12, 2023 by No Name Texan

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