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Channel Master 4228 8-Bay Multi-Bow HDTV UHF Antenna |
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CM 4228HD antenna is compact, light weight and optimized to receive HDTV signals. The Aluminum Rod Element construction disappears in the horizon. You can receive crystal clear, native, uncompressed HDTV VHF-HI (7-13) signals up to 45 miles and HDTV UHF (14-69) signals up to 60 miles away from the broadcast tower...
Mast Not included
Width: 41 in.
Height: 33 in.
Turning Radius: 22 in.
Estimated range 60 miles UHF
Includes hardware for mounting to a mast; antenna has a 75 ohm coax connection
UHF reception acheived by 8 Bays of Driven Elements and Wide Screen Reflectors.
Box size: 41x34x3
Average shipping fee is $12.95
Bowtie- Is respected as the Master of UHF reception due to the physicality of size. It uses more than one driven element to collect the signal, and the increase in the size of the reflector and number of driven elements (the bowties) directly impacts its gain characteristics. The size correlation is that compared to the electrical wavelength of the frequencies desired in reception. This is as Large as they get! As UHF is higher in frequency and shorter in wavelength, a respectable size antenna can mathematically be gargantuan with respect to frequency, yet physically be manageable for installation. The design is unique to UHF however, as the translation to the larger wavelength of VHF frequencies lends itself impractical in size. For this reason, Bowties are poor performers with regards to VHF frequency reception, but absolutely the best for UHF. Small Bowties are the least obtrusive to aesthetics and are wide beam-width to capture sources of signal diverse in azimuth (direction). Large Bowties simply intercept a large portion of the signal wave as it passes by and is most efficient in its ability to funnel the signal through multiple Driven elements into the cable where you need it. This version of the Channel Master 4228 differs from the Original because it has been modified to increase the Bandwidth received to include VHF-HI signals. As the increased Bandwidth has lowered the Gain in comparison, use of a Pre-Amplifier is recommended for Fringe use. Many Customers have seen success in using combining more than one antenna's signals together (a 2-way splitter used in reverse). For Example; with a UHF for Signals in one Direction and a VHF in another (or two UHF's, or two VHF's, so forth and and so on). This has given many the ability to capture signals in different directions, yet without the need of a Rotor to go back and Forth and in between. Any Model and Make of Antenna(s) can be combined in this manner and will maximize the Gains coming out of all Antennas utilized in this fashion!
Availability:
Call to Order
Shipping:
Can ship anywhere
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There is no substitute of height, clear line-of-site and size does matter... The higher the frequency, the higher the loss... Amplifiers do not give you something that you didn't have already...
The first key to any reception is to get above obstructions that exist between you and your target, as radio frequency reception of any kind (satellite, microwave, Radio and TV) are for the most part "Line-of-Sight" dependant. The fact that some receptions occur without line of sight is due to phenomenon not applicable in this discussion. As you increase your target distance, you increase the territory you must account for in maintaining line-of-sight. What tall building and air traffic exist in this corridor, no one can account for. Aircraft are very good at messing up reception for a number of reasons, even when flying way above the path, again removed for clarity in this discussion. Height, is therefore key in optimizing your ability to capture the best line-of-sight possible to your target.
Large ;Directional Antennas are good for HD TV Reception ;up to ;100 Miles with Pre-Amplifier usage…
For ;Long Range Directional ;TV reception, there are typically ;3 major types used; Corner Reflector, Yagi and Bowtie, not in any particular order.
Some of these Antennas are of ;Large Profile and Typically have a Asthetically ;Distictive appearance which can ;be ;of Concern ;when dealing with Home-Owner and Condo Associations. Their ;Extremely Large ;size ;prohibits some of them ;from Attic installation. If You enjoy a rather Spacious Attic, some Considerations would be; to keep wiring and other metal obstructions away from the Frontal view of the Antenna as not to impede reception in that Direction, and that any Amplifier that you might be using to enhance reception and/or distribution to other TV sets in the house be colocated with the Antenna as to reduce loss of signal unnecessarily due to distance between the Antenna and Amplifier, as well as to offset any loss in Antenna Gain from Roofing Materials used in Construction.
Indoors or Out, I ;always try to Mount the Antenna in a Position and Fashion that will lend itself to a maximum Angular view of the Horizon so a sweep with the antenna can be performed through and Past the intended reception Direction(s). This will insure that you are centered on Target (finding the "Sweet-Spot" for them all), and that if there are other Broadcasts available to you that were unknown previously, you can amend/supplement your current Antenna installation to add these New Channels to your Stockpile.
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