I have an indoor antenna hooked up to my 19" LCD HD TV, and the HD signal is excellent (HD & SD). However, the signal only lasts for 16 minutes -- always 16 minutes, whenever I initally turn the set on. After a while I might get a signal that lasts much longer, but the first time is always 16 minutes. Is this significant? Is the problem with my TV or the signal transmission?
I have used a specially designed HD antenna and an old rabbit ears antenna. Both work equally well (actually, the rabbit ears work a bit better).
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digital signals do not fade out and get snowy like signals used to do ... if the signal gets too weak then it just freezes .. you might say its either perfect or frozen .. sometimes it gets blocky .. where some sections of the screen freeze while other sections continue .. what that means if you are using an antenna is .. you need a better antenna or better aim for the one you have .. outside is much better than inside but just rabbit ears are ok for strong signal areas .. you can aim the antenna based on a signal strength meter usually provided in HD receivers in the setup menu .. you can also get an antenna map from "www.antennaweb.org" .. that will show you what direction to point the thing for each channel and how strong each channel should be ... if you are using Cable instead of an antenna then you should have good signal strength but there is a problem called "Crest Factor" .. that becomes an issue when they put too many signals on a given cable .. the cable handles it ok as long as there is no damage (bad ends, water inside, animal chews, corrosion) but the cable box or receiver may be overloaded as thousands of signals drift in and out of phase ... thats a cable company problem that might be getting worse as more channels are added .. the results are that periodically the picture will freeze or pixelate .. you probably have to accept a little of that but more than a little gets really irritating ....off the air reception with an inside antenna (like rabbit ears) you will find that moving around the room can effect the signal for channels in the UHF range (most are) .. aiming the antenna and getting it as high as possible will minimize that problem.. make sure whatever antenna you use is designed for UHF as well as VHF .. the little circle often found between the two "rabbit ears" is actually the UHF part of the antenna .. it can be rotated for UHF channels while the big ears are aimed and adjusted for VHF .. antennaweb.org will tell you which is UHF and VHF ..
I don't know in what area you live & therefore how strong your reception area will be, but as a general rule an indoor antenna is never the best type of aerial to have to receive digital signals, you will always find that you pick up some good strong channels but more often the rest of the channels will be poor or non-existant & will constantly break-up/freeze etc. The best advice would be to try & fit an outdoor antenna if possible.
LCD TV refers to the substance that creates the picture quality (it would be either LCD or Plasma or Tube) and HD refers to a crisp clear picture that can be attained. So your TV is an LCD (Liquid Crystal Display) TV that is capable of receiving and displaying HD (High Definition) Picture.
What you need to check for is whether the TV has a built-in Tuner. This will either be SD (standard definition) TV Tuner or an HD TV Tuner. The box it came in will tell you or you may still have stickers on your TV.
If it has a built-in SD tuner you will be able to pick up HD channels but in a lower quality. In this case you will only need to plug the TV into a Wall-socket antenna or rabbit-ear antenna.
If it has a built-in HD Tuner you will be able to pick up HD Channels in full HD quaility picture. Simply by plugging the TV into a Wall-socket antenna or rabbit-ear antenna.
If your TV does NOT have a built-in TV-Tuner then this TV is clasified as "HD Ready". Which means that you have to purchase a Set Top Box (STB). you can get either HD or SD set top boxes. In this instance you will plug the cable from the wall socket into the STB then from the STB into the TV using either an HDMI cable (as long as your TV has an HDMI input) or through RCA cables which will be coloured Green, Blue and Red (i think red)
By the Way - best picture quality is from a wall-socket antenna. HDMI = High Definition Multimedia Interface STB = Set Top Box High Definiton RCA cables will also be refered to as YPbPr/YCbCr (depending on equipment) LCD = Liquid Crystal Display (the method used to make the picture on your TV screen)
That's a problem with the digital broadcasting. Signal strength is critical, and the frequencies used are more directional. Some people are finding they get no reception at all. Your antenna may not need to be higher, but aimed in a different direction. Did you have a rotator installed as well? An outside antenna really should be pointed toward the station. You might also be able to add an amplifier to the antenna to boost the signal. But get a mast-mounted version that mounts right at the antenna, not the kind that goes at the TV set.
Bro the reception in that area of the house must be poor, as you've said. The walls in that area of the house must be too thick, or some part of the house is blocking the signal that the attena emits. You should consider getting an antenna that can be placed outside the house, like on the roof top. Make sure it isn't being blocked by anything, like trees with large branches or whatever.