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No OTA Signal

Discussion in 'Local Reception' started by jcm.oo, Sep 27, 2005.

  1. Sep 27, 2005 #1 of 106
    jcm.oo

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    Jan 24, 2005
    Just received the 942 this past Saturday. I was really looking forward to watching our local channels in high def. I connected my indoor antenna to the antenna/cable input on the back of the receiver, and scanned for both digital and analog channels. All it found was analog channels, no digital. I tried everything, no luck. So I contacted the broadcaster, they told me signal strength should not be a problem, which I didn't think it would be because I can pick up the analog channel fine. So I gave up on the digital stuff and connected cable TV to the input and got the first 9 or 10 channels OK but anything higher than that wouldn't come in, but it works fine when plugged directly into the TV. I tried the different options in the HDTV menu, still no luck. It seems like this digital/analog tuner is messed up, but I have another 942 and its doing exactly the same thing. Am I doing something wrong?
     
  2. Sep 27, 2005 #2 of 106
    zephyr

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    First step is to go to www.antennaweb.org and enter your address. That site will tell you what OTA channels are available, distance and direction to transmitters and digital broadcast channels. Digital/HD is broadcast at different frequency than analog (in other words, channel 3.1 might be broadcast on 43 or whatever, depending on how frequencies were assigned.).

    Next step is to make sure your antenna can do the job of picking up those channels. Pay attention to whether digital channels are UHV, VHF or both. Indoor antennas may or may not work, particularly with lower VHF channels.

    Finally, the 942 does not have a cable tuner, either analog or digital, so there is no point in connecting it to cable.

    The 942 will pick up all reasonably available digital channels with a decent antenna.

    Good luck!
     
  3. Sep 27, 2005 #3 of 106
    jcm.oo

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    The channels are all UHF, my antenna is UHF. I know the digital channel numbers, 16.1. And in the documentation for the 942 it states that it has an analog cable turner. The antennaweb website has the channels that I am trying to pick up listed. And the broadcaster said themselves that I should be able to receive a signal. I am a little confused on one thing, the channel is 16.1, however, I can not enter channel 16.1 in the local menu, just 16.
     
  4. Sep 27, 2005 #4 of 106
    LtMunst

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    Channel 16.1 is not UHF channel 16. It is probably a higher channel. It gets mapped to 16.1 to coincide with the analog station #. You need to find out what the actual UHF channels are.
     
  5. Sep 27, 2005 #5 of 106
    jcm.oo

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    According to the broadcaster website, the digital channel is 16.1, I should also be able to pick up other digital stations, 12.1, 12.2, 16.1, 21.2, 28.1, 28.2, 28.3, 28.4, 28.5, 47.1. I am receiving no signal whatsoever on any channel or either receiver. I haved tried different antennas no luck.
     
  6. Sep 27, 2005 #6 of 106
    LtMunst

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    Digital channel 16.1 is not UHF channel 16. For example, here in Philadelphia, Fox is regularly broadcast on channel 29 (analog). The digital channel is considered 29.1. The actual UHF channel for the digital broadcast is 42.
     
  7. Sep 27, 2005 #7 of 106
    zephyr

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    Jun 25, 2005
    I'll try one more time:

    The frequency that the receiver gets for a given channel is a whole number. It does not have a xx.1 suffix.

    Frequencies are assigned to digital xx.1, 2 3 etc. channels. The chart in antennaweb.org will list the digital station call letters, xx.1 channel and frequency. As LtMunst states, the receiver maps the frequencies to the assigned channels, so you as a consumer never see the actual frequencies, unless you try to enter them manually. If you enter them manually, you would enter the actual frequency.

    If the antennas you have tried are all indoor and you are in or surrounded by large buildings, they may not receive the channels. Antennas are also sensitive to how they are aimed.

    Generally the 942 is pretty sensitve and can pick up weak stations. It does have a problem with poor quality signals, such as are caused by multipath interference (lots of buildings) or electrical interference.
     
  8. Sep 27, 2005 #8 of 106
    jcm.oo

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    Well, I have done a scan of both anaglog and digital and just digital and i just can get any digital channels. I have also practally gone though all of the channels and tried to get something but just no signal on anything. Sometimes it adds analog channels on stuff that isn't even there. I understand now about the UHF channel for the digital broadcast, is that the channel number you would add in the the receiver under the local channels, digital menu?
     
  9. Sep 27, 2005 #9 of 106
    jcm.oo

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    There is not alot of buildings in the area, expecially tall buildings, the tallest building with in 20 miles is only 3 stories.
     
  10. Sep 27, 2005 #10 of 106
    LtMunst

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    Yes, you would want to put the actual UHF channel for 16.1 into the digital add menu and search off of that. If the signal is found, the 942 will map it into the guide as 16.1 regardless of what the true UHF channel is.
     
  11. Sep 27, 2005 #11 of 106
    zephyr

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    To manually add channels in the menu, yes, enter the actual frequency.

    It must be a long way from the Eastern Shore to the TV transmitters, or something else is messed up in the setup. To have it happen on two machines suggests it's not the receiver.

    Gotta run. Good luck.
     
  12. Sep 27, 2005 #12 of 106
    jcm.oo

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    But I cant add a 16.x or anything with a "." in it. I tried to put it on just 16 but it won't pick it up. The analog channel comes in fine.
     
  13. Sep 27, 2005 #13 of 106
    LtMunst

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    16.1 will not work. You need to find out what the higher UHF channel is for the digital broadcast.
     
  14. Sep 27, 2005 #14 of 106
    jcm.oo

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    I think a straight line from here to the station is about 40 miles
     
  15. Sep 27, 2005 #15 of 106
    zephyr

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    It may or may not be higher. For example, here 35.1 broadcasts on 11.
     
  16. Sep 27, 2005 #16 of 106
    jcm.oo

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    I've also e-mailed the wboc to find out what the uhf channel is.
     
  17. Sep 27, 2005 #17 of 106
    zephyr

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    That's a very long distance for TV and would require an amplified outdoor antenna.
     
  18. Sep 27, 2005 #18 of 106
    jcm.oo

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    I know its not the same, but the analog channel comes in ok with just the indoor antenna. I would think that I should have some signal from the digital station broadcasting from the same place?
     
  19. Sep 27, 2005 #19 of 106
    LtMunst

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    40 miles may be stretching it for an indoor antenna. I have an indoor amplified that works at 30 miles but there are some borderline channels. Not sure what another 10 miles would do. At least make sure you are trying an amplified antenna.
     
  20. Sep 27, 2005 #20 of 106
    jcm.oo

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    Yeah its amplified.
     

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