Getting intermittent interference, need some input

Discussion in 'Over the Air TV By RabbitEars.Info' started by andy_horton, Oct 20, 2017.

  1. #21 andy_horton, Oct 29, 2017
    Last edited by a moderator: Oct 30, 2017
    Also, using a mobile phone, not exactly sure how to copy and paste, but if you want to look at my tvfool report, my info is, xxxxxxxxxxxxxxxxxxx. Stations I pull are WRCB, WTVC, WDEF, WTCI, WFLI, WDSI, WELF. WKSY and WNGH are usually present at night, I'm assuming since outdoor antenna is pointed towards Chattanooga, I get the other 2 at an angle and reflection from backside of antenna. Hope this helps.
  3. Andy, the best I can advise you is to look at this thread I'm linking below and notice the sort of info needed to work through all the issues you have. You can make your own post in that forum and get help from people that really have the tools and knowledge to get you fixed up. Internal antenna inside a house with a metal roof is wasting your time to even play with. External, maybe with preamp and a splitter is the way to go.
  4. As the repack is coming, it may be worthwhile to investigate a full-range outdoor antenna mounted up high. WNGH is moving to RF 4 so the two substantially UHF antennas will be of zero help there. You didn't mention it, but WTNB is moving to RF 5. Mounting up high may also allow you to clear whatever electrical interferences there might be.

    I don't agree with the assertion that a window-mounted mud flap is going to be negated by a metallic roof as it is mostly out from under it (assuming it is in a window on the station facing side of the house). While they are claimed to be omnidirectional, they really don't see much along the edges. If the back side of the antenna is shielded from signal, that's probably a good thing.

    The thin wire on the mud flap is a bad thing. They can be very lossy and if you're amplifying it at the end of the thin wire, you may be only gaining back what was lost in the cable. Again, you need to be certain that the thin cable doesn't make any sudden bends as kinks in the cable may degrade its transmission capabilities. Each coupler represents a 1dB loss. Other devices (such as the A/B switch) have higher insertion losses.
    andy_horton likes this.
  5. I edited out Andy's street address. PM him for it if you want to assist him in getting better reception.
    andy_horton and harshness like this.
  6. Better yet, Andy should post a link to his tvfool results.

    My recollection is that they are dismal at best with edges across the board.

    Here's mine:

    TV Fool

    The results show city, state and Zip, but nothing that would otherwise allow someone to pin it down to a particular location (unless your estate has its own zip code).

    Again, note that TVFool does NOT contemplate the post-repack landscape that will involve some stations changing frequencies and possibly broadcast antenna locations. That information can be obtained from (as far as it is known today).
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