Question: Why the sudden loss of all Digital Tv signals in Chicago area today ?
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Why the sudden loss of all Digital Tv signals in Chicago area today ?


This is a discussion on Why the sudden loss of all Digital Tv signals in Chicago area today ? within the DTV | HDTV Reception and Antenna Discussion forums, part of the Over-the-Air (Antenna TV) category.

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  1. #1
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    Why the sudden loss of all Digital Tv signals in Chicago area today ?

    I was watching Tv, everything was fine, then out of the blue, we lost every single station, in the chicago area !
    Re-scanning for tv signals ended up finding even less stations than we had when we 1st hooked up the digital converter box last month.
    Now, I've contacted FOXnews chicago, WLS tv, and 2 other places, and am getting no answers.
    So now what ?


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    Lawrence,

    My guess is there has been a physical change to one of your components. What Brand and Model converter box are you using? Some have poor reputations because they can overheat and temporarily fail or completely quit working. Please advise.

    Is your TV set still set on channel 3 or channel 4, so if can receive the signals from your converter box? Is the converter box set to the same channel? Did your antenna fall down or is it no longer pointing toward the transmitters? Did 'Junior' or the family pet somehow disconnect one of the cables?

    Jim
    n2rj likes this.

  3. #3
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    maybe the antenna is damaged or the receiver is damaged, have a question you used an amplifier of signals with your wiring?
    maybe the translators or channels have temporary problems in tyhe transmissions,

    if were a problem itself of signal atleast should receive the pilot signal that indicate to the receiver that a signal is on air, , maybe your receiver is damaged, perhaps those converter boxes are sensitive to heat and to other variables as are a little computers,

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    Quote Originally Posted by Lawrence Shea View Post
    I was watching Tv, everything was fine, then out of the blue, we lost every single station, in the chicago area !
    Re-scanning for tv signals ended up finding even less stations than we had when we 1st hooked up the digital converter box last month.
    Now, I've contacted FOXnews chicago, WLS tv, and 2 other places, and am getting no answers.
    So now what ?
    Do you have an signal amplifier, or an amplified antenna? If so, it's possible that it has come unplugged or simply died. If a signal amp is not powered or working, it will pass almost no signal.

  5. #5
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    Is the problem still there? Can you now get all the stations you had before? Have your re-scan your Box for channels lately. As already mention it could be some type of equipment failure, Antenna, some type of amplifier, or something in or around your home casing interference.
    Also it could just be the atmosphere. TV broadcast are basically radio waves which do get affected by atmospheric conditions. To give an example, there is Tropospheric Ducting, which allows you to get signals from 100 's of miles away, however when this condition sets up and it is strong in my area, I lose my local stations. Here is a couple of web pages that explain this.
    UHF TV-DX and fringe reception techniques
    or
    Tropospheric DX Modes
    Sometimes just certain weather fronts affect my reception. For example a few weeks ago we had one night of heavy solid rain, I lost all but one TV station. I thought I might be getting water in the Pre-amp on my antenna, shorting it out, but a week later we had torrential rain causing flash flooding, but my TV reception was great, so it had to be the weather front.
    I hope you can find your problem, but it would be worth re-scanning for channels again, before you go looking for all kinds of other possible problems.

  6. #6
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    yeah even in any system of television digital happen the same even with a heavy rain we in Santiago Chile with the ISDB-Tb with a heavy rain and the signal drops from 100% to 60% or even 30% of signal i use a rooftop antenna because indoor reception with an rabbit ear antenna is a complete fiasco.

    also the Tropospheric ducting affect s to the reception and also many others factors as an cable damaged or an amplifier or connectors loossen too can cause signal problems.

    best regards
    Francisco

 

 

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