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    Why does my converter box not pick up channels my DTV does?


    This is a discussion on Why does my converter box not pick up channels my DTV does? within the Converter Boxes and ATSC Tuners forums, part of the Over-the-Air (Antenna TV) category.

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    1. #1
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      I recently purchased a new DTV. All my others are still analog w/boxes. My DTV picks up channels my converter boxes do not. Why is this. They are all hooked up to the same antenna. I have re-scanned the boxes but they will not pick them up. Example: my box picks up 5.1 and 5.2 but my DTV picks up 5.1, 5.3, 5.4 and 5.45. these are all different "networks/channels". they are not duplicates broadcast on other subchannels. Can anyone tell me why this is and if there is a fix?

    2. #2
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      melmac,

      My guess is your new DTV has a more advanced tuner compared to your Converter Boxes. Please share what Converter boxes you have and the new TV set brand and model. You may have discovered a superior tuner and that information could benefit many.

      Secondly, we would like to see your TV Fool report with your input indicating the channels your 'boxes' receive and the additional channels your new HOT tuner receives. Thanks in advance, possibly from many.

      Jim

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  • #3
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    Quote Originally Posted by melmac View Post
    .....my box picks up 5.1 and 5.2 but my DTV picks up 5.1, 5.3, 5.4 and 5.45. these are all different "networks/channels". they are not duplicates broadcast on other subchannels. Can anyone tell me why this is and if there is a fix.....
    By any chance are you here in the Saint Paul MN Area?

  • #4
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    For melmac to be seeing 5-45, the only place in the US where there is a 5-45 is in the MSP market. If the box was not rescanned recently, then it's possible that melmac is still seeing KSTC on 45-1, This on 45-2, and Me-TV on 45-3, and a new scan would make it agree with what the DTV is showing him. I know there are people who still see what is now 45-5 on 5-2 because they have not performed a new scan to update the lineup.

    - Trip
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  • #5
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    My converter box on the TV in question is an RCA DTA800B1. My new TV is a Walmart special, Sanyo DP42740 - no super TV. I am picking up channels from the MSP market but live in Northern IA. A repeater near Frost, MN is the source and they do sometimes switch channels but received channels should be the same because I am getting it from the same source. On my conv. box TV set, I pick up 2.1, 2.2, 2.4, 4.1, 5.1, 5.2, 9.1, 9.2 (same as 9.1 in SD), 11.4, 11.5, 12.1, 12.2, 12.4, 12.5, 21.1, 21.2, 21.3, 23.1, 23.2, 29.1, 45.1.

    DTV differences are: add 5.3, 5.4, 5.45 (same as 45.1 on box set) and 23.3. I also get 18.1 and 25.1 which are audio only(radio) channels.

    here is URL to my TV fool report: TV Fool

    When I have rescanned with my converter box, I have only scanned to retain current channels and add new ones. Do I need to wipe it and start over you think?

  • #6
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    What some people do is a double scan. First, disconnect the coaxial feedline and then scan. You should have no channels found. Then, re-connect cable and scan again. That way you should get rid of the old data and just have new, current data stored in the device.
    Last edited by Jim1348; 04-29-2012 at 06:46 PM. Reason: Details

  • #7
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    Yes, if you do the double rescan, you will find that 5.2 is now 45.5, and 45.1 is 5.45, with 5.3, 5.4, 23.3, and possibly 29.2 (same as 29.1) added.

    I know what 25.1 is, but can't for the life of me figure out what 18.1 is supposed to be.

    - Trip
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    Comments are my own and not that of the FCC (my employer) or anyone else.

    RabbitEars

    "Ignorance and prejudice and fear walk hand in hand..." - Rush "Witch Hunt"

  • #8
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    Thanks so much for your expertise and help. I will try the rescan tomorrow night and get back with a report. P.S. I haven't listened to 18.1 long enough to hear an ID. Not that interesting to me.

    UPDATE: I did rescan and it worked. funny that add-on scan didn't yield same result!? Anyway now I know how it works. Appreciate you help so much!!! Thanks again!
    Last edited by melmac; 04-30-2012 at 04:50 AM. Reason: New information
    Fringe Reception likes this.

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  • #10
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    Quote Originally Posted by Trip View Post

    I know what 25.1 is, but can't for the life of me figure out what 18.1 is supposed to be.

    - Trip
    Trip, in case you are interested, I listened to 18.1 for a while the other night and it seems to be coming from ISU in Ames. NEver heard call letters but they were talking about Ames and Iowa State University events.

  • #11
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    Fascinating; is it the same as 25.1? I suspect it is. And do you receive Iowa PBS on 24-1 as well? That would explain that.

    - Trip
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    RabbitEars

    "Ignorance and prejudice and fear walk hand in hand..." - Rush "Witch Hunt"

  • #12
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    Quote Originally Posted by melmac View Post
    I did rescan and it worked. funny that add-on scan didn't yield same result!? Anyway now I know how it works. Appreciate you help so much!!! Thanks again!
    I almost never get the same scan results twice in a row. A few clouds, a flock of birds, humidity, electrical appliances running next door, even some temperature distortion in the atmosphere ... they can all affect signal on marginal channels.

    It's also well known that different tuners have varying success at different frequencies. The converter box also has two more (probably unsheilded) F connectors for signal to jump through. There's a fair chance if you do a complete double rescan on both sets, the results might come out just the opposite -- more channels from the box. It's not like cable at all. Too many variables.

    Rick
    Fringe Reception likes this.

  • #13
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    Lightbulb

    After my DISH box blew up, a phone technician gave me a helpful hint. Even if you have no satellite service but have a dish still mounted onto your house, you can use the dish as a powerful antenna. Plug your satellite cable into the wall as usual. However, instead of screwing the other end onto your digital TV, place the center prong of the cable loosely into the little hole and secure with a piece of tape. If you screw it in securely, it won't work. Then, you can cannibalize your old satellite box for the little 6" antenna and hook it onto your TV instead for even better reception. I was amazed! And that was without a DTV box!

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