Product Description

two-piece design with separate amp module and power supply * high-gain, low-noise operation for deep fringe reception * compatible with both digital and analog TV signals * separate amplification for VHF (channels 2-13) and UHF (channels 14-69) * filtering for rejection of out-of-band signals *

Product Details

• Brand: Channel Master
• Model: 7777
• Dimensions: 2.00 pounds

Features

• Two-piece design with separate amp module and power supply
• High-gain, low-noise operation for deep fringe reception
• Compatible with both digital and analog TV signals
• Separate amplification for VHF (channels 2-13) and UHF (channels 14-69)
• Filtering for rejection of out-of-band signals

Customer Reviews

Top of the Line
I purchased this amp over a year ago and found that it was just the ticket. I researched my purchase on several websites and determined this was the best within an afordable range (There was one overseas with less noise but it was over double the cost). I had a cheap amp from a home improvement store that gave me reception but with the upgrade to HDTV I was getting dropouts more than I would like. I purchased this amp and no more drop outs, it gave me a boost in 20 points on my Sony Bravia digital reception over the cheapo booster. I suspect the negative reviewer installed it wrong. There are separate inputs for VHF & UHF that you can combine to one input but if you do not you would eliminate your VHF channels (2-13) or UHF (13-69) entirely which would explain loss of these channels.

Good, but not the best, even some of the cheapies beat it
I live in North West NJ, which is a deep fringe area because it is blocked by hills.

I am a ham radio operator and have an 86 foot tower for ham radio use. My CM4228 is there, as is this CM7777 preamp.

Build quality of this preamp is good. The casing is made of metal unlike many of the others which are cheap and made of plastic.

Performance is good. It helps me overcome the cable loss of 210' of RG6 cable and helps pull in the weak signals from New York and Philadelphia.

I like that it has separate inputs for VHF/UHF.

But this pre-amp made me lose channel 25-1 (physical 24) and gave me dropouts on some other channels which were previously dropout free. No matter how I adjusted the antenna it did not pick up these lost channels. Previously I had an Antennacraft 10G212 which pulled in almost everything. The Antennacraft is also about half the price of the CM7777. I suspect it can't handle the overload from the nearby (~15mi) WMBC analog which contains zero programming that interests me. The good news is that WMBC is moving away come 02/17/09 so hopefully it will get a little better.

Channel Master used to be a great company that had some really great products, when they were owned by Andrew Corp. I have quite a few products from Andrew and their build quality is excellent. But CM had to be sold off when Commscope bought out Andrew, and last I heard CM closed their last US plant this year. So unfortunately I think the once great company Channel Master will be gone soon. The name will remain, but the products just won't be the same anymore.

Great Product, Great Service from Company and Retailer
I've got to believe the reviewer that had problems didn't hook this thing up correctly or follow the directions. I did the same thing myself and the results were awful. When following the directions, however, the results are simply amazing. I get stations - both analog and especially digital that I couldn't get before. I didn't do a signal strength comparison, but I'm guessing that it must at least double the signal. I called Channelmaster and talked to a real person in North Carolina who helped me prior to the sale. I ordered from Crutchfield's and got the unit the next day with standard shipping. I'm getting signals that, according to [...], show that I'm 20 to 30 miles closer to the towers. I could not be more pleased, and would recommend channelmaster products and Crutchfields anytime.