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I installed this about 20 to 25 feet above ground, indoors, above my garage. The area above my garage has a wooden louvered gable vent facing 15 degrees west of due North. There is no insulation, so besides the louvered gable it is receiving signal through plywood and cedar clapboard. The roof above is asphalt roofing installed over tar paper and plywood.
The Boston stations are about 15 degrees East of Due North and the Providence Stations are about 23 degrees east of due North. So I angled the antenna about 30 degrees to face the Boston stations. Providence Stations are about 30 miles away and Boston stations are about 61 miles. There is about 100 feet of Quad insulated RG-6 connected from the antenna to a distribution AMP which feeds two TVs, one only 25 feet from the Amp, the other another 100 feet. The 100 ft. run is old RG59.
I easily received 39 channels on both TVs. Every Channel with a Noise Margin over 10db comes in consistently without out any break-up nor artifacts. This included numerous Boston Stations. Several stations with a Noise Margin between 0 and 10 come in if I move the antenna to point directly at the heading of the tower. This is also improved if I install a Channel Master Titan Amplifier for which I was able to tune in about 60 stations, but then I had some break-up on the very close stations. With additional work I could probably fine tune the amplification as I have yet to measure the signal nor try different levels of amplification. I used a titan high gain amp but did not install the medium gain amp I have. They now have one with a switch I might try at some point.
The bottom line is that without any substantial effort, mounting indoors and not on the roof, I was able to receive all Providence stations, many Boston Stations and a few Connecticut stations that are 90 degrees from the direction of the antenna but close range (30-35 miles). There are houses in the path of reception and trees about 250 feet from the antenna. When considering this for an attic application, you will need to consider that for my application the signal is not blocked by insulation as it is fairly lucky that the garage peak faces the towers with only a 30 degree offset. Installation and mounting are very simple. You do want to be careful connecting the RG-6 to the antenna, do not over tighten - do not apply significant torque and when you unfold the antenna, unfold both sides at once to ensure you do not stress the phasing harness. This is shown in the instructions, it is not difficult and is really obvious and common sense. The antenna does not receive LOW VHF but there are no stations in my area that transmit LOW VHF. Remember that most stations with virtual channels from 2.1 to 6.1 are actually transmitting UHF or HI VHF at this point. There are several DTV sites that map this for you. Good Luck - I highly recommend this antenna.
| Brand Name | Channel Master |
|---|---|
| Item Weight | 10 pounds |
| Product Dimensions | 41 x 5.5 x 33 inches |
| Item model number | CM-4228HD |
| Is Discontinued By Manufacturer | No |
| Color Name | Gray |
| Specification Met | (unset) |
| Item display height | 34 inches |
