High Def Forum - Your High Definition Community & High Definition Resource

Go Back   High Def Forum - Your High Definition Community & High Definition Resource > General Chit Chat > Cables & Connections
Rules HDTV Forum Gallery LINK TO US! RSS - High Def Forum AddThis Feed Button AddThis Social Bookmark Button Groups

Cables & Connections Discuss and learn about HDMI Cables, DVI Cables, HDTV Cable Connections and more! RSS - Cables & Connections

Coax vs. hdmi

Reply
AddThis Social Bookmark Button
 
Thread Tools
Old 03-24-2007, 10:46 AM   #1
High Definition is the definition of life.
 

Join Date: Mar 2007
Location: Indiana
Posts: 133
Default Coax vs. hdmi

Is there any advantage running an hdmi from my stb to the tv as opposed to just using a coax cable? Obviously the coax cable feeds the signal to the stb, why wouldn't it be just as efficient running the signal from the stb to the tv as would hdmi or component?
ActionPoint is offline   Reply With Quote
Old 03-24-2007, 11:44 AM   #2
Love my 50" Panny
 

Join Date: Jan 2007
Posts: 936
Default

You do not want to use coax out from your STB. Coax is horrible once it leaves your set top box and would give you the worst picture quality of any other cable. The top picture quality cable choices are HDMI, DVI and component, use one of these if possible. HDMI and DVI are the same as far as video quality both are digital connections. Component cable is a high quality analog connection. Which is better between HDMI/DVI or component is a matter of the specific system and personal choice, the only way to know which works best is to compare the two yourself on your own system.

But do not use coax over any other choice as this will give you very poor results.
Rich_Guy is offline   Reply With Quote
Old 12-06-2008, 09:53 PM   #3
How can anyone watch standard def?
 

Join Date: Feb 2008
Posts: 18
Default Why then...

...does my HDTV manual state that HDMI and coax offer the same quality and that both provide the best picture...then component....then S-video....then composite. Do we trust the manufacturers, who want us to be happy with our TVs, or the post above?

I hate HDMI for the built in copy which allows downstream control of content I own.
hitlerdef is offline   Reply With Quote
Old 12-06-2008, 11:31 PM   #4
Former Super Moderator
 
Loves2Watch's Avatar
 

Join Date: Aug 2007
Location: In Flux
Posts: 20,284
Default

Quote:
Originally Posted by hitlerdef View Post
...does my HDTV manual state that HDMI and coax offer the same quality and that both provide the best picture...then component....then S-video....then composite. Do we trust the manufacturers, who want us to be happy with our TVs, or the post above?

I hate HDMI for the built in copy which allows downstream control of content I own.
Consider this then - Component is a coax cable, just like the one used for cable but it has different ends yet it requires 3 separate cables. Wonder why? Separating the video signal is the best method and needed for HD, that's why. DVI, HDMI and component do that, the cable from the box does not as everything is passed along 1 cable.
__________________
It's always time for pie
Live everyday as if it was your last and plan on living forever...

Last edited by Loves2Watch; 12-07-2008 at 11:12 AM..
Loves2Watch is offline   Reply With Quote
Old 12-07-2008, 02:27 AM   #5
Missouri_HD_Guy
 
Nevada_MO_Guy's Avatar
 

Join Date: Feb 2006
Location: Missouri
Age: 48
Posts: 1,183
Default

Quote:
Originally Posted by ActionPoint
Obviously the coax cable feeds the signal to the stb, why wouldn't it be just as efficient running the signal from the stb to the tv as would hdmi or component?
The coax cable feed coming into your Set-Top-Box (Dish, cable etc...) is more than likely a digital signal with some type of a compression scheme...(Mpeg2/Mpeg4).

When the STB decodes and 'fluffs' up the input signal, the output signal now can be effected by bandwidth over a signal cable.
__________________
Sony KDS-60A2000 bulb hours ..... Onkyo TX-NR555 ..... Dish ViP 622 DuoDVR temps .... Toshiba HD-D1 ..... Philips BDP7200 ..... Definitive Technology BP9060 w/ATMOS .... Definitive Technology CS9060
Nevada_MO_Guy is offline   Reply With Quote
Old 12-07-2008, 03:43 AM   #6
Love my 50" Panny
 

Join Date: Jan 2007
Posts: 936
Default

Quote:
Originally Posted by hitlerdef View Post
...does my HDTV manual state that HDMI and coax offer the same quality and that both provide the best picture...then component....then S-video....then composite. Do we trust the manufacturers, who want us to be happy with our TVs, or the post above?

I hate HDMI for the built in copy which allows downstream control of content I own.
If you are using coax out from your HD cable box you are not receiving an HD resolution to your TV. Only HDMI, DVI, Component and VGA are capable of high definition signals after the signal has been processed through a tuner (cable box). Coax, S-video and Composite cable will only be 480i resolution.

While coax will be fine for over the air HD signals going into your TV which have not yet passed through the tuner, with an HD cable/satellite box you must use either HDMI, DVI, Component or VGA in order to receive a high definition 720p or 1080i signal.

If you are using coax from your cablebox to your TV you are receiving 480i and your flat panel display is upconverting the signal to the TVs native resolution, you are not receiving high definition input into your TV.
Rich_Guy is offline   Reply With Quote
Old 12-07-2008, 10:14 AM   #7
Progress Not Perfection
 

Join Date: Oct 2007
Posts: 5,715
Default

Quote:
Originally Posted by hitlerdef View Post
...does my HDTV manual state that HDMI and coax offer the same quality and that both provide the best picture...
I agree with the previous responses to this post.

I suspect that the poster has either misunderstood what the manual actually says or taken it out of context.
For example, a coaxial over-the-air input will provide the same (or better) quality picture as a HDMI from a STB.

It would be interesting if hitlerdef could provide either an exact quotation from the manual . . . or better yet, a link to the manual with a note on the page where this information is written.
Scottnot is offline   Reply With Quote
Old 12-07-2008, 12:43 PM   #8
Love my 50" Panny
 

Join Date: Jan 2007
Posts: 936
Default

Quote:
Originally Posted by Scottnot View Post
I suspect that the poster has either misunderstood what the manual actually says or taken it out of context.
For example, a coaxial over-the-air input will provide the same (or better) quality picture as a HDMI from a STB.
Exactly, for over the air (antenna) into the TV's tuner you use coax cable, but not out from a set top boxes tuner.
Rich_Guy is offline   Reply With Quote
Old 08-25-2016, 09:46 PM   #9
What is HD?
 

Join Date: Aug 2016
Posts: 1
Default

Quote:
Originally Posted by ActionPoint View Post
Is there any advantage running an hdmi from my stb to the tv as opposed to just using a coax cable? Obviously the coax cable feeds the signal to the stb, why wouldn't it be just as efficient running the signal from the stb to the tv as would hdmi or component?

I think there has been some misunderstanding on the posts... What he is saying is that the signal going to the house is thru a coaxial cable!

so he is saying, why would the signal be any different if you use coaxial going to the TV since the signal going to the house in HD is going thru a coaxial cable?

I think what others are meaning (please confirm or not) is that once the signal reaches the cable box or whatever you are using from the coaxial line that comes to the house.... It is then broke down to 480 if you use the coaxial connection going from the Cable Box to the TV. Whereas if you use the HDMI port on the cable box, that uses the same high quality signal that arrives to the house.

Is this what you guys mean?
mike120a is offline   Reply With Quote
Old 08-26-2016, 06:44 AM   #10
Direct TV Fresh Meat
 

Join Date: Feb 2007
Posts: 2,445
Default

Post necropheliac!
__________________
This post is not to be construed as a slam on plasma TV's nor an endorsement of any other TV technology.
DoctorCAD is offline   Reply With Quote
Sponsored Links
Go Back   High Def Forum - Your High Definition Community & High Definition Resource > General Chit Chat > Cables & Connections
AddThis Social Bookmark Button
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads to Coax vs. hdmi
Thread Thread Starter Forum Replies Last Post
Fiber Optic vs. HDMI (sound) Conshy04 Cables & Connections 33 05-05-2011 08:20 PM
HDMI vs HDMI Pass through + Optical... ICUDOGG Speakers & Surround Sound 8 11-15-2007 03:48 PM
Component vs. HDMI Purple_Sunday DirecTV Forum 10 12-07-2006 04:49 PM
coax vs. component vs. DVI pkremida Cable Providers 10 10-27-2006 07:42 AM


All times are GMT -6. The time now is 12:15 PM.



Copyright ©2000 - 2016, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2004 - 2008, High Def Forum