Channel Master CM-7778 Titan Medium-Gain Mast Mounted Preamplifier Review

Average Reviews:

(More customer reviews)Initially I bought the db8 antenna which did great on UHF and the upper VHF. I was able to get channel 2 with some drop-outs but once I used an amplifier (7778) and a splitter, I completely lost the channel. That channel had about a <50% signal strength before the amp or the splitter. I decided I wanted to go with a better VHF antenna since the cm-7778 amp will allow me to combine inputs form two antennas. Once I connected it, it worked flawlessly. The strength after the amp and the splitter jumped from 23% to 79%. The only drawback is that channel 7 which used to be 85% with the DB8, dropped to about 75% which is fine with me since with a digital signal you either receive a channel or you don't! I believe that is due to the fact that the 3018 is directional and it wasn't exactly facing the channel 7 towers.

I am assuming a lot of folks are trying to do the same thing that I did which is get a good VHF/UHF reception to 4 different TV outlets so I am going to list what I used.

First problem would be which amp and how would I power the amp. I went with the channel master 7778. The great thing about it is that you can put the power supply inside the house and it will send the power through the cable line to the amp outdoors. The trick is you have to use a "power pass through splitter". The one that I used is sold by amazon. Do a search for "4-Way Digital Cable and Satellite Splitters". If you live very far from the tower, you can try the CM 7777 which has a slightly better gain but could result in an overload if you live close.

For the antenna choices, it depends on your location. In my case I am about 40 miles away from the towers. I went with the DB8 for the UHF channels and the Channel Master 3018 for the VHF. I recommend going with two antennas because the DB8 is not directional and it does not have to face the towers and the 3018 is. The DB8 has about 75 miles range for UHF. The 3018 has 35(as per the box). For VHF, the DB8 is unclear on the range, and the 3018 has about 60miles. If you only care about UHF (channels 14 and up), the DB8 would be just fine. If you live far from the towers, you can go with one of the higher end deep fringe antennas from channel master. It doesn't do any good to spend more money on a bigger bulkier antenna if you really don't need it.

Using the cm7778, i was able to split the signal first using the 4-way splitter above then i split two of the outputs further using 2-way splitters and the signal was still good for all channels! On top of that, I have the dish signalmultiplexed with one of the outputs through the same line and I still get both excellent antenna and dish signals. This amp/antenna combination was definately worth the money!

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Product Description:
The Channel Master 7778 Titan preamplifier is perfect for MATV systems where signal is distributor to a lot of ports.

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Uhf / Vhf Antenna Pre Amp Kit Review

Average Reviews:

(More customer reviews)I think many people purchasing this amp may not understand how it works, and may not be very patient with trying out a few setup options. I own a small computer and electronics shop, and have just recently started installing products from antennas direct. In the installation instructions it says to point your antenna first for an ideal signal BEFORE installing the amplifier. This is very important to getting satisfactory results. Also, if you understand what factors reduce signal strength (cable quality and length, connectors, splitters, etc), you can better diagnose what may be going wrong. I brought this amp to a customer's home, along with several different models of antennas to test out and swap parts to see what results I got. [...] gave them no results for stations servicing their area, and they lived in a hole in the middle of the woods. They had a very large, old broken aerial antenna sitting on a wood pile that they had been using, which got in most VHF antennas, and some UHF. For this antenna, the amplifier did absolutely nothing, and actually cut reception in half on the signal meters on 3 different TVs. For a roof mounted DB4, it improved all the UHF stations, but reduced the signal on all VHF stations to the point where none of them came in. With the ClearStream C5 roof mounted, all VHF stations came in above 80% with no amp, and when the amp was added, it brought them up to nearly 95%. The UHF stations were diminished. With the DB4 and C5 both connected using the diplexer included with the C5 and NO AMPLIFIER, all available stations came in clearly and with no pixelization. However, this setup needed to service 3 televisions with a splitter. Once the third run of cable was added to the splitter and total cable length of the entire system exceeded 120 ft., the signal cut enough to cause some stations to break up. Adding the amplifier back in solved this problem, and gave them all available stations at above 80% signal strength. I could not ask for much more at a house out in the sticks in deep woods 30-60 miles from any towers, Another benefit to adding the amp is that the signal is not only higher, but it also stabilized it. Before the amp, the numbers and meters were jumping all over the place, with blowing trees, etc. After the amp, the meters didn't vary more than 3% up or down.

Overall I'm impressed, but it did take some work to get the right combination. I wish there were more noticeable gain. An 18dB gain should be enough to take a 75% signal and turn it into 100% as seen by the TV or tuner, but it didn't. It seems that reception was as good without the amp until the third split was added, and that's the step that made it obvious it was needed. Until then, it was looking as if we could do without the amp. So sure, it does the job and stabilizes reception, but it looks like if you're using no splitters and within 30 miles of all your local stations, you can get the best reception with the right combination of antennas and no amp. 5 stars for the C5. It brought the whole package together, a great antenna with an effective bonus diplexer.

Build quality is average. I'd like to have the ability to remove the AC adapter from the power injecter (to run power through small drilled holes, etc.). Although I'd say it's pretty cheap feeling and looking, it's not overpriced in my opinion. A lot of other more expensive products are less effective.

to sumarize:
Get a more powerful antenna than you think you should, and only plan on using an amp to overcome splits and long runs. Getting a smaller antenna and beefing it up with an amp isn't likely to have the same effect as a larger antenna by itself.

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Product Description:
UHF / VHF Antenna PRE AMP KIT

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