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Cheap HDMI to COAX cable/converter?

Novakingwai 2,142 263 March 12, 2016 at 09:13 AM
Looking for Cheap ($30 or less) HDMI to COAX converter. Googling leads me to believe that since they are 2 different signal types I'm gonna have to get a converter box that costs around $200 or more. Is this correct Mad

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#2
Don't exactly know why you would want to do this since a cheap HDMI TV can be had for < $200, but the below might do the trick depending on what you are trying to achieve:

http://www.amazon.com/Portta-Comp...to+coaxial

http://www.amazon.com/E-More%C2%A...to+coaxial
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#3
Quote from Novakingwai View Post :
Looking for Cheap ($30 or less) HDMI to COAX converter. Googling leads me to believe that since they are 2 different signal types I'm gonna have to get a converter box that costs around $200 or more. Is this correct Mad
Does not exist. It's not simple to run an hdmi signal over coax, ~$200 is about right.

The cheapest option would require a pair of Cat-6 cables. Though an HD Base-T adapter would be more reliable and more expensive.

Take a step back and tell us what you're trying to accomplish, they're may be a simpler solution you're overlooking.
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#4
Quote from jkee View Post :
Does not exist. It's not simple to run an hdmi signal over coax, ~$200 is about right.

The cheapest option would require a pair of Cat-6 cables. Though an HD Base-T adapter would be more reliable and more expensive.

Take a step back and tell us what you're trying to accomplish, they're may be a simpler solution you're overlooking.
Have TVs set up in the store using Coax. I'm tired of boring TV. Plus, the picture is so boring. Was wanting to play a Blu Ray movie on all the TVs to make them look nicer. Can't spend a lot.
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#5
Quote from Novakingwai View Post :
Have TVs set up in the store using Coax. I'm tired of boring TV. Plus, the picture is so boring. Was wanting to play a Blu Ray movie on all the TVs to make them look nicer. Can't spend a lot.
All of the devices that have been discussed thus far would only work between 2 points like the cable they'd replace and the product YanksIn2009 linked to would degrade the quality drastically. A little more context would help, but I'll assume you work at a mom & pop electronics store.

Sending a signal to multiple tv's is more involved. If you look closely at tv displays at a store like best buy, you'll see they're all hooked up via hdmi or component. There are a lot a different cables and pieces of equipment in play costing thousands of dollars.

The cheapest way to distribute a signal to a bunch of tv's using coax would be an ATSC or Clear QAM modulator (like what your vcr used to do on channel 3/4 but digital). The quality will be worse than hdmi and you're likely to have hdcp issues. An ATSC modulator would cost over $1000. Be careful, some products you'll find only work with foreign tv's (eg. DVB).
This would work for example: http://www.bhphotovideo.com/c/pro..._hdmi.html

Even though they've got more involved setups for a lot of tvs you'll often still find a few tv's at stores like best buy and walmart that are hooked up directly to a bluray player. That's probably the simplest/cheapest option.

You can also use something like this: http://www.monoprice.com/product?p_id=5704 to send the video from a single bluray player to 4 tv's at the same time using HDMI cables.
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Last edited by jkee March 12, 2016 at 05:37 PM
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#6
The store already has a COAX repeater box hooked to all the TVs (not sure of the correct terminology, but it is a box that has about 15 coax outputs and it is powered). The 1 input is Coax, so I would like HDMI to Coax. Thinking this isn't going to be cheap.
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#7
Quote from Novakingwai View Post :
The store already has a COAX repeater box hooked to all the TVs (not sure of the correct terminology, but it is a box that has about 15 coax outputs and it is powered). The 1 input is Coax, so I would like HDMI to Coax. Thinking this isn't going to be cheap.
You aren't looking for "hdmi to coax" per se, that would simply be a set of media transceivers (one on each end) that would be an alternative to a single hdmi cable and would be around $200.

As I already explained, to distribute an HDMI/Component signal over coax to a bunch of tv's you need an ATSC / Clear QAM RF modulator. The one I linked to is $1300. You basically have to turn the video signal into something like the cable company or tv station broadcasts. It isn't simple to do this and the equipment isn't cheap.

If you want a cheaper alternative, run cat-5e to all the smart tv's and setup a dlna server, this approach would still cost at least $500 if you had to buy a computer. Also if you do this, good luck getting multiple tv's displaying the same thing in sync.

I think I've covered your options pretty well, and I suggest you re-read my posts until you understand them.
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Last edited by jkee March 12, 2016 at 07:33 PM
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#8
do your TV's have HDMI input?
get media boxes/media sticks (firetv, rokustick, etc)
if TV's are close, get an HDMI splitter
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#9
You can buy your own tv transmitter and use the local tuners

http://antiqueradio.org/HomeTVTransmitter.htm

Could be cheap and fun too!

50 bucks ebay

http://www.ebay.com/itm/Blonder-T...1565105324
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Last edited by komondor March 13, 2016 at 11:52 AM
#10
Quote from komondor View Post :
You can buy your own tv transmitter and use the local tuners

http://antiqueradio.org/HomeTVTransmitter.htm

Could be cheap and fun too!

50 bucks ebay

http://www.ebay.com/itm/Blonder-T...1565105324
That would be a low quality sd signal. Some new tv's may have even have dropped ntsc tuner support.
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