what is sdtv and why when i press it on my tv it says no signal?

Question

simple terms please not that tv iliterate!lol

Answer 1

SDTV is just standard defintion, nothing fancy. It says no signal because you probably don't have anything connected to that connection or if anything is it's turned off.

Answer 2

SDTV usually means a digital TV channels that have about the same quality as a DVD player.

I'm guessing that the "SDTV button" switches the TV from the old analog channels to the new digital ones.

"No signal" could be caused by several things. The most likely is that you never went into the TV's menu system and told it to scan for channels. This should be explained in the manual that came with the TV.

If you have the TV hooked to a cable system, it could mean that you have a cable service that doesn't have any digital channels.

If using the menu system to scan for channels doesn't work, you might add a comment to your question with the following info:

Make & model of TV
Is it hooked up to an antenna or cable?
The zip code where it is located (if hooked to antenna)
---------------------------------------------------------------------
>"ilo" brand from walmart
> connected to digital cable
>we did do the scans and we still get the no signal.

This brings to mind several things:

Check the TV's manual and see if it has a QAM tuner. There are two kinds of digital TV tuners. ATSC tuners are used for over the air broadcasts and QAM is used on many cable systems. Most TVs that have an ATSC tuner would also have a QAM tuner. But since Ilo is about the cheapest brand on the market, maybe not. If it doesn't have a QAM tuner, there is no way you can receive digital cable signals on it without going through a cable box.

Some cable systems do not use (non-scrambled) QAM. On those systems you have to use a cable box to receive digital channels.

It's also possible that your cable company is sending you QAM but not analog signals., In which case you are already watching digital channels and you would get "no signal" when the TV is switched from digital to analog.

Answer 3

The difference between SDTV and HDTV is that the signal on SDTV is more compressed than that of HDTV. As the digital signal is compressed, broadcasters can transmit five SDTV programs, whereas HDTV can only broadcast one. Multiple program broadcasting, called multicasting, was not previously available with analog transmissions. The picture definition of SDTV is also slightly lower than on HDTV.

SDTV will give a greater range of choice in the type of viewing material you will be able to access. Children's programs, documentaries, films, and public affairs -- the choice will be far greater than before. It will be the equivalent of digital satellite services such as the Dish Network or Direct TV.

Most of the normal TV sets used today cannot receive digital transmissions. You will need a DTV receiver in order to accept them. DTV receivers are available at the moment; they work by connecting your television to an output. However, they are of limited performance quality. You will be able to watch SDTV and HDTV programs, but they will not be true, High Definition picture quality.

All broadcasters are now required by the FCC to use the new digital system. In order to fully experience SDTV or HDTV, you will need to buy a new television set. High definition sets first appeared in 1998. These television sets were very expensive, much like when the first compact disk players appeared. The price has dropped significantly since then, as the diversity of televisions available has grown.

Walk into any television retailer, and the wealth of choice is sometimes bewildering. Liquid crystal display, flat and plasma screens -- there seems to be no end to the choice available. You can have floor-standing televisions or sets that are hung on the wall like a painting. The only limit is the amount of money you wish to spend on your viewing pleasure.

Answer 4

Yeah what he said^.....

SDTV- Standard Definition tv
HDTV- Hi Def TV

Answer 5

What Is Sdtv