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License Free, legal, low-power radio broadcasting

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The State of Part 15 TV

 
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Last Post by Anonymous 9 years ago
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 Carl Blare
(@carl-blare)
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For years part 15 TV was a no no. It couldn't be done on the standard VHF or UHF frequencies, much to the disappointment of hobbyists interested in building small TV stations.

Times have changed.

New white-space frequencies have been established for open micro-wave transmission, Wi-Fi broadcast and on-line video strreaming expands the pallete of part 15 video opportunities.

Is there a video player suitable for scheduling public domain movies and video newscasts?

KDX-TV is already several years old, but is simply a page of links to available video choices, but could become developed into a television station if a good player were available.

We'd benefit from a good report on the best video formats for such application, e.g., MPEG4 and others.


 
Posted : 30/03/2017 7:38 am
 Anonymous
(@Anonymous)
Posts: 0
 

I haven't had much luck with finding video automation softare.

However there is a program called Music Bee that displays song facts and other information that makes for a good video music channel. Somewhere I have a file that can modify the display to show whatever you want.


 
Posted : 30/03/2017 9:58 am
 Anonymous
(@Anonymous)
Posts: 0
 

I have been checking around googling and various other things to try to find out about the white space for audio transmission or video. The closest thing I found was that they're allowing Wi-Fi devices to transmit somewhere between 76 and 88 MHz. If however I do find out that you can do audio down there I would make 87.7 The Legacy well known.

Our spokesperson for The New Radio Revolution has been quite busy and has not had the time to call the FCC to find out if this is true or if this is something that is supposed to happen but hasn't yet. In the meantime if anyone else can find out please let us know as I would really like to find out more about this. Stay tuned for further details.


 
Posted : 30/03/2017 10:12 am
 Anonymous
(@Anonymous)
Posts: 0
 

Handles video.


 
Posted : 30/03/2017 11:44 am
 Anonymous
(@Anonymous)
Posts: 0
 

Ok what if I were to transmit some words about The Legacy on Ch6 and just play Audio like a Franklin FM station?  Would that work?


 
Posted : 30/03/2017 12:57 pm
 Anonymous
(@Anonymous)
Posts: 0
 

The Legacy wonders:  "Ok what if I were to transmit some words about The Legacy on Ch6 and just play Audio like a Franklin FM station?  Would that work?"

Maybe.

We hope to find out.


 
Posted : 30/03/2017 1:30 pm
 Anonymous
(@Anonymous)
Posts: 0
 

Download the manual.


 
Posted : 31/03/2017 4:41 am
 Anonymous
(@Anonymous)
Posts: 0
 

At the low power levels allowed analog would be the best bet. As far as whitespace is concerned, I believe the allocations are actually between the television channels and you can't actually broadcast video. The intention is for microphones IIRC.


 
Posted : 31/03/2017 5:48 am
 Anonymous
(@Anonymous)
Posts: 0
 

Low power analog TV requires an amateur radio license and only withing a specific frequency band.

http://www.mfjenterprises.com/Product.php?productid=MFJ-8708

The User Manual:  http://www.mfjenterprises.com/Downloads/index.php?productid=MFJ-8708&filename=MFJ-8708.pdf&company=mfj


 
Posted : 31/03/2017 7:12 am
 Anonymous
(@Anonymous)
Posts: 0
 

WDCX mentions amateur licensed analog TV and of course there's LPTV licensed analog, making the point that Part 15 does not permit analog unlicensed TV.

Our inquiry over new forms of permissable unlicensed TV under Part 15 therefore applies to digital methods and bands.

In as much as a Wi-Fi Hotspot can be setup without a license opens the possibility of providing a small area with a broadcast oriented website with video and audio streams.

Other white-space areas up and down the spectrum might offer additional pathways for shuttling video signals between points.


 
Posted : 31/03/2017 7:54 am
 Anonymous
(@Anonymous)
Posts: 0
 

In a nearby thread someone mentioned "album covers can be sent on radio streams".

What is an image of an album cover but basic video (TV)?

How about full motion video wherein an album cover could be animated to grow larger, closer, fly around?

It's been several years now that more and more websites are sending very crisp high quality video streams viewable on home computers.

How are they doing it?

Druid Hills informs us that RadioBoss can handle video playlists.

What are the encoders and servers needed to stream video?

We can watch video at consumer download bandwidth.

Is there enough bandwidth for uploading a videostream from a home internet connection?

And of course, what are the legal ways to transmit video wirelessly?

We are asking many questions related to part 15 video.


 
Posted : 01/04/2017 6:18 am
 Anonymous
(@Anonymous)
Posts: 0
 

UHF NTSC OTA channel 83.

But it didn't work very well.  I think it would have been under

Part 15 at the time.

You can imagine how excited I was when a good friend gave me the set-up - - new in the  box.  About 10 or 20 years ago...  It operated somewhere in the 902 to

928 MHz band.   Since the top of the old TV channel 83 was 890 MHz...  If you do

a.little math you could say loosely that it would have been "channel 85."  But it might have been a little higher than that.  Depending how high it was up in the 902 to 928 band - - maybe around the middle -- you could jokingly call it "channel 86"

or "channel 87."  The 902 to 928 MHz band is a home for many allocations - or it was.  Ham radio is still in there.  I imagine ISM and other unlicensed devices are still there also.  

The transmitter was plugged into your VCR or  DVD player or whatever.  A free running oscillator -- I'm guessing.  It drifted a bit which was annoying.  It gave you

a fair color NTSC picture and the sound wasn't too bad.  The receiver was a converter which fed into a regular NTSC TV on channel 3 or 4.  The whole system only went about

50 or 100 feet at the most with a "free space" path.  I suppose one could have

added a gain antenna and preamp to the receive converter to improve the range.

The whole thing was disappointing though.  You really had to mess with it to

get a clear signal from one room to the next.  So my initial excitement and enthusiasm went downhill very quickly.

I used to love TV DXing and could talk about related subjects for hours.

I will just add:  There are now fairly inexpensive 5.6 GHz wireless TV

cameras and receive converters.  I know NOTHING about these.  Are 

they even legal?  5.6 GHz is a ham band too.  What does that mean?

I can say this, though -- I always wanted to hang one on my dog Hoover.

(Named after the vacuum cleaner.)  I could watch where he was going

from his point of view.  What a blast that would be.  And I could watch from

Inside the house (?)  A Dog Cam!  What fun that would be if it was

possible!  For you dog lovers, I'll add that we have a fenced in yard.

Brooce, Part 15, Hartford


 
Posted : 01/04/2017 8:42 pm
 Anonymous
(@Anonymous)
Posts: 0
 

Talking about part 15 TV with Brooce I mentioned all the old black and white films I'd like to run if I had a TV station.

Brooce recommended a movie from 1974 that happens to be in color but it is so novel that it deserved mention. Also, since it all happens in outer space there isn't a whole lot of color. I love that clash of words: "IN OUTer".

A film named "Dark Star" which has become a cult classic, written and produced by John Carpenter and some college buddies, and can be seen on YouTube.

I watched it in 3 sittings and it is serious, funny, off-beat, clever, and real proof that you are on the "in" crowd. The movie portrays the boredom of the human condition, especially after 20 years confined to a sealed space ship.

If you don't like this movie no one will like you. That's how good it is.


 
Posted : 06/04/2017 8:48 am
 Anonymous
(@Anonymous)
Posts: 0
 

I had a scale model of that once! Vacu-formed from SFMA. It built into an impressive little model. Loved that movie!

Doug


 
Posted : 06/04/2017 9:51 am
 Anonymous
(@Anonymous)
Posts: 0
 

Don't forget about Bubba Ho Tep!


 
Posted : 06/04/2017 9:51 am
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