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  1. #1
    Super Member txdon's Avatar
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    Central Texas
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    Kubota L5030HST 1947 Farmall A Hustler FasTrak

    Default VHF Gain Antenna

    I am receiving an excellent signal from all of the HD TV UHF stations 18 through 54 over the air. FOX-7 is a VHF station and I am not getting a signal. (I received it perfectly before it switched to HD.)
    I contacted FOX-7 and they said I need an antenna gain for VHF. Has anyone had a good experience with an antenna with a gain for VHF.

    (I live about 50 miles East of Austin TX)
    Thanks!
    TXDon

  2. #2
    Veteran Member
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    Caldwell Co. NC
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    2006 Kama554; 92 Belarus 250AS

    Default Re: VHF Gain Antenna

    A large Channel Master style antenna works good to receive VHF. A good amplifier between the antenna and the receiver may also help. By the way, there's nothing different about an "HD" antenna. It's still receiving the same frequencies.

    Pick up FREE Digital TV with Channel Master digital HDTV Antenna CM-3671 for the best TV antenna reception, this is a UHF VHF antenna which is good for weak to strong signal strength areas. This is our longest range tv antenna

    http://www.amazon.com/Channel-Master...DateDescending
    2006 Kama 554, 92 Belarus 250AS, Bombardier Outlander Max 400.

  3. #3
    Elite Member
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    Apr 2000
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    Grayson County, TX
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    Kubota B2710

    Default Re: VHF Gain Antenna

    I have large Channel Master antenna - it has the big elements for VHF and the small "yagi" V up front for UHF. Seems that most digital channels are broadcast on UHF but some are not. One example is channel 8 Dallas - I'm pretty sure it is VHF. The antenna is on top of a 50 foot tower and there is also an amplifier mounted on the antenna itself. I have a rotor to tweak the aim when necessary. Channel 8 was my worst channel (pixelated quite a bit) until they switched over the strictly digital - at that point it cleared up.

    Even though my antenna looks more life a VHF than a UHF antenna it is doing a great job picking up the signal about 75 miles from those broadcast towers south of Dallas (I am north). If it was me I'd get an antenna that does a better job on VHF figuring it will do just fine for the UHF channels. And you do need an amplifier unless you are pretty close.
    Alan L., TX
    South of Bugtussle
    North of Mustang
    On the banks of Buck Creek
    We don't rent pigs.

  4. #4
    Veteran Member K7LN's Avatar
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    Michigan
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    JD455 & JD790

    Default Re: VHF Gain Antenna

    Wingard makes 5 antennas that are specifically designed for the VHF High and UHF channels (7-51), models HD7694 to HD7698, offering about 10db gain each. You can select which ever you think would fit your needs. You should also install a preamp very close to the TV receiving antenna. Again, Wingard makes sever varieties. Channel Master makes some good units too. I have a Channel Master CM-7777 preamp at my location. It offers a 23 db gain with a low noise figure and the option of using either 1 or 2 antennas. You can go to SolidSignal.com and check them out for yourself. They include a lot of specs on their website.

    If you received their signal perfectly before, you should at least be able to pick up the HD signal to some degree. Is it possible that you need to rescan the HD channels? It's also possible that the TV won't process the channel selection properly. This can happen when you have a former analog signal programmed into the TV and then try to program a HD channel at the same spot. Have you tried manually tuning 7.1, 7.2, 7.3 and 7.4?
    JD 790 w/70 FEL & 7 BH on turf tires
    JD 455 w/60" MMM & 54" front blade

  5. #5
    Super Member txdon's Avatar
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    Kubota L5030HST 1947 Farmall A Hustler FasTrak

    Default Re: VHF Gain Antenna

    No luck with re-scaning the channels or manually putting in 7, 7-1 etc.. Thanks for the antenna info.
    TXDon

  6. #6
    Gold Member EarPlug's Avatar
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    Colorado
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    MF 1635

    Default Re: VHF Gain Antenna

    Check out Antennas Direct. I used them a couple of years ago when the changeover was in progress. Here in the Denver area they had temporary broadcast sites downtown while they built out the "mountain" site. Signals were a mess. Called Antennas Direct and they were very helpful in sorting out the equipment needed.

    Jack

  7. #7
    Veteran Member K7LN's Avatar
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    Default Re: VHF Gain Antenna

    Quote Originally Posted by txdon View Post
    I live about 50 miles East of Austin TX
    Antennas Direct is a good source of info as to where the various stations are located. I would think that if you're getting ch. 43, then ch. 7 should be no problem. Both are located near the center of Austin. With you antenna pointed straight west, it "should" come in. What are you using for an antenna now and is it indoor or an outdoor?
    JD 790 w/70 FEL & 7 BH on turf tires
    JD 455 w/60" MMM & 54" front blade

  8. #8
    Super Member Highbeam's Avatar
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    South Puget Sound, WA
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    Kioti CK30HST

    Default Re: VHF Gain Antenna

    In many areas, stations have moved their frequencies (actual channels) around the time of the change to digital. Most of my available networks moved up to the UHF band which is excellent since they are easier to recieve. Some stinkers have either moved or stayed in the high VHF band where you need a big goofy antenna to receive them. You can easily make a UHF antenna but the VHF guys are herkin big.

    Some stations just quit broadcasting from a tower and moved to another tower.
    Kioti CK30HST, FEL w/toothbar, 60" RC, 60" BB, PJ 10k trailer. Weekend warrior hauling 50 miles each way.

  9. #9
    Veteran Member K7LN's Avatar
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    Default Re: VHF Gain Antenna

    Quote Originally Posted by Highbeam View Post
    In many areas, stations have moved their frequencies (actual channels) around the time of the change to digital. Most of my available networks moved up to the UHF band which is excellent since they are easier to recieve. Some stinkers have either moved or stayed in the high VHF band where you need a big goofy antenna to receive them.
    Most stations moved to UHF, and many moved to another channel after the switch. A few are moving back to VHF High. The problem with UHF is that the transmitter power required is quite high. Therefore, the electric bills go through the roof. Also, UHF reception is generally poorer for a variety of reasons (weather, vegetation, efficiencies, reflections and receiver noise figures).

    VHF High antennas aren't that big and goofy. You only need a width of about 3 feet. The problem is that most antennas still on the market are designed for channels 2-69. The VHF Low channels is what makes the antennas so large. All of the VHF Low antennas are too small actually. Manufacturers have made them a compromise in size to be practical. That's why many people used to have trouble getting channels 2 & 3.

    Getting back to the channel switching. Originally, all stations were to be on UHF. The vacated VHF frequencies were to go up for a so called "spectrum auction" as deemed by Congress. Then the FCC decided to allow UHF and only VHF High channels. Later, they decided to open up all the VHF channels to HDTV. So now now we have channels 2-6 being held open for a handful of stations, and 7-13 being held open for two handfulls.

    The spectrum auction was to allow industry to have space to develop and use devices like RF ID tags. However, because of the wavelengths involved, industry doesn't want these frequencies. So the FCC opened those channels back up for TV. Channels 52-69 are still being held for industry development.
    JD 790 w/70 FEL & 7 BH on turf tires
    JD 455 w/60" MMM & 54" front blade

  10. #10
    Platinum Member Craig Clayton's Avatar
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    Default Re: VHF Gain Antenna

    I am 60 miles north of Buffalo New York and am going through the change to digital. That means Canada, we are slated for the summer of 2011. I am preparing to pickup this week 24 feet more tower to increase my height to 64 feet. The digital converters have only been on the shelves for 10 months.
    Craig Clayton

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