a 2009 tv shut off question...

mastermesh

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Apr 18, 2006
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When all the ota analog signals go dead in February, 2009, will it affect both analog video and audio or just video? I have a special little am/fm/tv radio that picks up ota audio channels. Will it still work after the conversion from analog to digital? I'm guessing so, but am asking here because I'm not so sure... I think audio from tvs runs on an fm-type frequency. If fm radio won't go down, will tv broadcasts on fm waves?
 

digiblur

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Jun 8, 2005
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When all the ota analog signals go dead in February, 2009, will it affect both analog video and audio or just video? I have a special little am/fm/tv radio that picks up ota audio channels. Will it still work after the conversion from analog to digital? I'm guessing so, but am asking here because I'm not so sure... I think audio from tvs runs on an fm-type frequency. If fm radio won't go down, will tv broadcasts on fm waves?

The analog carriers will be gone. It will still work but you'll get white noise on the TV band.

Audio from TV's don't run on the FM radio band.

No, TV channels will not be broadcasting on the FM radio band. There's no room for them there.
 

mastermesh

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Apr 18, 2006
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And even if it did work, your audio would most likely be out of sync with your digitized video.
the sync issue wouldn't really matter much as long as we are just talking about radios, not tvs.

I figured it'd all go black... oh well, guess I'll enjoy it while it's still working. Kinda nice to listen to nbc while at work...

I know there will be converters that the government will put out to convert the signals to get in to the tv, but wonder if there will be something similar for tv radio combos like this.?
 

Jim5506

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The audio goes away with the video, they are modulated into the analog TV signal and both go bye bye Feb 2009.

Analog TV audio is modulated FM, not in the FM band, except channel 6, which can often be picked up at the bottom of the FM band.

It will be more difficult to seperate audio from video with digital broadcasts, because they are digitally integrated into the whole signal, not seperate AM and FM modulations in the same signal as with analog. A receiver would have to demodulate the whole digital signal, throw away the video and pass the audio.
 

mastermesh

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Would "digital radio" pick it up? I've read about certain radio channels using subchannels that you can pick up with new hd radio recievers where you might have one channel that has several subchannels. I'm assuming it wouldn't work, but hey, it never hurts to ask.
 

KE4EST

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Would "digital radio" pick it up? I've read about certain radio channels using subchannels that you can pick up with new hd radio recievers where you might have one channel that has several subchannels. I'm assuming it wouldn't work, but hey, it never hurts to ask.

Good question!!
 

Peter Parker

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The analog carriers will be gone. It will still work but you'll get white noise on the TV band.

Audio from TV's don't run on the FM radio band.

No, TV channels will not be broadcasting on the FM radio band. There's no room for them there.


Actually channel 6 in particular is readily receivable on an FM radio and many portables havea TV band for the other VHF channels.
 

kb7oeb

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Nov 27, 2004
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Would "digital radio" pick it up? I've read about certain radio channels using subchannels that you can pick up with new hd radio recievers where you might have one channel that has several subchannels. I'm assuming it wouldn't work, but hey, it never hurts to ask.

No, HD Radios are cool but they can't decode ATSC. HD Radio uses IBOC.

If you want something small Best Buy sells a small 5 inch portable lcd tv with a digital ATSC tuner built in/
 

BKP

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Jul 24, 2006
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Come to think of it, I wouldn't be able to watch my 30 year old 5" B&W Bohsei AM/FM/TV without a digital receiver.. That reeks... Not that I actually watch it but, it's nice having around.. And it still has an excellent picture.. Hopefully, they'll be makin' a real small digital receiver..


Later, Brent
 

Pepper

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Mar 16, 2004
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Yeah, my Victrola has trouble playing cd's too. Times change.

difference is, the government didn't mandate production cease on 78rpm records.
 

Peter Parker

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FYI, the FM band falls between TV channels 6 & 7.

True. but most FM receivers can recive the analog sound of Channel 6 itself and many consumer rasios have a separate "TV band.".
 
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