HDB91X Antenna

Discussion in 'Over the Air TV By RabbitEars.Info' started by rodder, Jan 9, 2019.

  1. rodder

    rodder Topic Starter Pub Member / Supporter
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    i bought a HDB91X antenna to pick up Chattanooga stations 60 miles away along with a Winegard LNA-200
    amplifier suppose to be good for 70 miles but it will only pick 10 of my 30 stations my old cheap antenna would pick up 30 i have tried unplugging the amplifier made it even worse this is a high rated antenna any tips what may be wrong
     
  2. comfortably_numb

    comfortably_numb Dogs have owners, cats have staff
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    I tried that antenna at one point. At my location, the performance was no better than an RCA ANT751R. I also use a Channel Master CM-7777HD preamp. I am receiving stations 45 miles away.

    I ended up giving the HDB91X to a friend.

    How far away are your stations? Can you post a www.tvfool.com report?
     
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  3. Voyager6

    Voyager6 Just lost in space
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    I believe that the HDB91X is a highly directional antenna. I would try changing it's direction by 1 degree at a time and maybe changing the height slightly. Also, it is primarily for UHF If you are trying for long distance VHF channels, the HDB91X may not be the best choice.
    HDB91X - Xtreme Signal
    Xtreme Signal 70 Mile VHF/UHF Yagi Outdoor TV Antenna (HDB91X) from Solid Signal
    Key features
    • Simply one of our strongest HDTV antennas for long-range reception
    • Receives stations from up to 70 miles away on UHF and up to 25 miles for high-VHF channels
    • 16dB of gain for ultra-high reception in a compact TV antenna
    • Directional design allows for reception within a 60° beamwidth
    • Large back reflector suppresses interference with a high front-to-back ratio of 26dB
     
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  4. rodder

    rodder Topic Starter Pub Member / Supporter
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    Before i moved last year i was using a Channel Master CM-4221 and it done very good but i thought i would try this one i will probably
    sent this back and order that one
     
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  5. comfortably_numb

    comfortably_numb Dogs have owners, cats have staff
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    Another option is to use your HDB91X for UHF, and buy a separate long range VHF antenna for those stations. Then, combine both in a preamp.
     
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  6. comfortably_numb

    comfortably_numb Dogs have owners, cats have staff
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    This is probably the best VHF-only antenna you can buy, and it's only about $35: Stellar Labs 30-2476
     
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  7. primestar31

    primestar31 SatelliteGuys Master

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    Beats me why yours aren't working well, there must be something wrong with them. They are uhf ONLY though. I have TWO of them up and running right now, and they are excellent antennas! I've had one installed for over 5 years now, and added another for a specific channel that's in a different direction, and included a vhf antenna for my one vhf station.

    So, a total of 3 antennas in my array, including a Jointenna device for the two UHF antennas feeding into FM trap (I have strong fm radio stations very close), then a Kitztech KT-200 preamp, then into the uhf side of a UVSJ combiner. My Y10-7-13 vhf only antenna feeds into another FM trap, then into the vhf side of the UVSJ, bypassing the Kitztech preamp. Then the single quadshield rg-6 coax goes to the back of my tv center in the living room, into the power inserter for the preamp, then into two splitters which feeds a bedroom tv set, my living room tv set, and my Tivo.

    Everything works perfectly. Though 40 years ago I was a Winegard dealer, and installed antenna systems for part of my living. So, I'm pretty good at getting things tweaked within an inch of their lives.

    It took me about a month of tweaking to get this all working 100%, but I have several unique situations in my receive location that needed compensation to get all my stations solid.
     
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  8. FTA4PA

    FTA4PA Satellite Guys Family
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    if you have a hill/mountain between you and the towers try tilting the antenna up just a bit. Sometimes it will improve the signal. It's call the knife-edge effect. Worked for me! :)
     
  9. rodder

    rodder Topic Starter Pub Member / Supporter
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    thanks I went ahead and did a exchange for the Channel Master CM-4221
     
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  10. primestar31

    primestar31 SatelliteGuys Master

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    Also be aware that the earth's HORIZON is right around 62~ or so miles away from you. That means that the Earth curves enough at that point, that any tv tower farther than that is below the horizon. That means there's NO direct path to your antenna, without bouncing off something. So, even if your house and the tower had nothing in-between you, receiving it solidly is still a bit of "black-magic", and you have to play around to find what works best for you. That could be a different antenna, tilting UP, tilting DOWN, raising it higher, lowering it lower, moving it to a different location on your property, any number of things!

    Mile ratings on antennas are nothing but marketing HYPE, and mean nothing.

    P.S. I just ran a Tvfool report based on your zip code of 30103, and it's HORRIBLE. Everything is 1 or 2edge listed at 30 feet. That means that ALL broadcasts have to bounce off of at least 1 thing (mountain or terrain) before getting to your property. That's bad, though just doing a generic zip code report isn't that good, and it really should be run on your exact house coordinates. Also, TVfool is tweaking their database, and it isn't as good as it used to be. I fall back on "you MUST try all sorts of things, and find what works best for YOU"

    Here is that report:
    TV Fool
     
    #10 primestar31, Jan 9, 2019
    Last edited: Jan 9, 2019
  11. rodder

    rodder Topic Starter Pub Member / Supporter
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    Yes i know but like i said (Before i moved last year i was using a Channel Master CM-4221 and it done a very good job )
     
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  12. primestar31

    primestar31 SatelliteGuys Master

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    Good deal, hopefully it'll work out for you. IF you need a bit more after getting it, I HIGHLY recommend switching to that Kitztech KT-200-Coax preamp, instead of the Winegard one you have now. KT-200 TV Booster
     
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  13. harshness

    harshness SatelliteGuys Master

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    All of the Big Four Chattanooga stations are in the VHF-high range. WNGH will be moving to RF4.

    Rather than two antennas, I'd suggest one full-range antenna since the big guns are on VHF.

    Due to land features, Atlanta may (or may not) be easier and three of the Big Four are UHF.
     
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  14. Wireless Engineer

    Wireless Engineer Active SatelliteGuys Member

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    Those long boom yagis are too directional so you MUST use a rotator and the slightest movement in the wind may cause signal drops and most of their gain is on higher frequencies no longer used.
    A 4 bay bowtie antenna has a 60 degree pattern and a much greater capture area so it is always my first choice for UHF installs and they have better performance at lower uhf frequencies.
    But if Chattanooga is your market, you also need a VHF antenna for certain since many are vhf and more are coming with the repack.
     
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  15. harshness

    harshness SatelliteGuys Master

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    I challenge your assertion that a bay antenna beats a Yagi-Uda at the low end. The Repack is eliminating the top half of what bay antennas were designed to do.
     
  16. andy_horton

    andy_horton SatelliteGuys Pro

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    If not mistaken, WDEF will move from RF 12 to RF 8 as well. This may or may not make a difference. As for me currently, 1 4bay UHF only about 35-40 miles from towers in N GA with pre amp 15ft AGL no splits, about 50ft coax receives all but low power channels in the Chattanooga market. But it's taken frustration & determination to have a good locked reliable signal. Even when I tried several VHF/UHF combos, my UHF only works much better.
     

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