Three questions regarding HDMI cables.?

Question

When I bought my tv the shop gave me a great deal and offered me £40 off a £70 HDMI cable.
I'm just trying decided is the 'sandstorm av silver HDMI' a good cable for a plasma?


Also can someone explain what the 'Gbps' means on the cable and what it does when the numbers change?


I need to buy one more HDMI for a 3D blue ray. I'm not asking for what brand I should go for I'm asking what should I look for in the cable?

Tv- 50 Inch 600hz 3D full HD LG

Answer 1

There is obviously much confusion about HDMI cables that needs some clearing up.

1. The reason you got so much off the price of your Sandstorm cable is cables, HDMI in particular, are one of the highest profit-margin items in an electronics store. Your cable is highly regarded and well reviewed, so they are good. You just don't need to spend that much to get good.

2. Gbps does mean Gigabits per second. It is NOT the same thing at all as ghz - GigaHertz. GigaHertz is the frequency of a radio carrier wave. Gigabits per second is a measure of speed (or more accurately, "throughput" - the number of bits of data that can be transmitted per second). When "the numbers change" it means a faster (higher number) or slower (lower number) data rate. EX: in video, if there is a shot of a solid blue sky, it doesn't take nearly as many bits/second to display this as it does to show a couple thousands falling snowflakes. The bit-rate of any movie is constantly changing from scene to scene, and a Gigabit/second is plenty for the highest def scene of any movie.

3. When looking for a new HDMI, the old classifications of 1.0, 1.2, 1.3 and 1.4 may very well no longer be displayed. These are version numbers, with 1.0 introduced in 2002 and 1.4 in 2009. But the HDMI organization - here:

http://www.hdmi.org/learningcenter/trademark_logo_pub.aspx

put into effect in January 2012 a rule that version numbers are to no longer be displayed. Previously, version numbers gave some idea of what capabilities were introduced when (EX: - 1.4 introduced 3D capability, among others). HDMI is not a marketing ploy on the part of individual manufacturers, as one answer said, it's a set of specifications that manufacturers must meet in order to get the HDMI logo on their cables. Here is a (now out-of-date) link showing version numbers and when each capability criterion was enacted (charts are about half way down the page):

http://en.wikipedia.org/wiki/HDMI

Any new cable will handle full HD at 3D. And the specification is for 60hz - any higher rate (120hz, 240hz, etc) is the refresh rate of the display, not what has to be carried by the cable - it's after the cable's work is done. Hope this clears things up a bit.

Answer 2

Sandstrom Hdmi

Answer 3

This Site Might Help You.



RE:

Three questions regarding HDMI cables.?

When I bought my tv the shop gave me a great deal and offered me £40 off a £70 HDMI cable.

I'm just trying decided is the 'sandstorm av silver HDMI' a good cable for a plasma?





Also can someone explain what the 'Gbps' means on the cable and what it does when the numbers...

Answer 4

HDMI was designed on purpose by the engineers who designed the format to be non cable specific. In other words they did not want HDMI to be dependent upon the quality of the cable involved so the design considerations always took into account that if a low quality cable where used they wanted the same exact response as with a higher quality cable...these parameters were designed into the format on purpose...There is no difference in signal quality between one HDMI cable and another at shorter lengths; longer lengths will either transmit a perfect signal or no signal right on the border you may get picture freeze; pixilation or color wash out but you will never get just a slightly better signal using one cable over another....a better quality cable will have better tip ends they will be soldered by robot as opposed to by hand assuring that the cable and tip end will hold weld for a longer period of time....also the fit and finish will be better better cables have a tighter more exact fit onto the female connector assuring that the cable will not slip off; also the tip end will allow the cable to bend slowly assuring that it does not kink....also shielding and wire gauge will vary mostly for piece of mind not video quality...There is no such thing as a version 1.2 cable or a 1.3 version cable or a 1.4 version cable these are HDMI standards not cable standards. Cable manufactures have imposed these standards on themselves to gain status what they do is test there cable using the 1.4 version standard and assert that the cable meets the standard a 1.3 version cable will also work the difference is the manufacture has not tested for 1.4 use...but its still the same cable....they do not change the construction techniques or anything just test....

Answer 5

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Answer 6

For 3D you should get the 1.4 HDMI cable. they all work the same way. The only difference is the material they make the cable with. The more expensive one will have a better pins at the end, while those cheap brand will break easily it you keep disconnecting them and then plugging them back in. Hope this will help you out.

Answer 7

in the cable look for silver or gold, I prefer gold because as far as metals go gold tends to conduct electricity much better then say copper or sliver and that will make sure that all the info is sent as fast as possible so you avoid any of those annoying situations where the sound gets there before the picture. Also the gbps means gigabits per second you want this number to be high.

Answer 8

- Gold > silver.

- Ghz is giga herts. Gbps is giga bits, same thing, it's the measurement of bandwidth.

- Don't look for version 1.4, instead look for the features you want since those features may be optional (=even if it says it's version 1.4, they could have opted out 3d feature). (Not sure if they have updated hdmi version yet, I think they have).

- Your from UK, so I think you can do amazon I think.

= I answered what you should looked for below.



HDMI (High-Definition Multimedia Interface):

- Hdmi is a interface for transferring uncompressed digital video data and compressed(lossy)/uncompressed(loseless) digital audio data and more features from a hdmi compatiable source device.



Additional information at the links:

- (If you have any questions and need answers). http://www.hdmi.org/learningcenter/kb.aspx



The below guide is to help you so you know what is a good quality hdmi cable and so you don't get ripped off:

- A good quality 6 ft hdmi cable will not cost more than $10 or your getting ripped off (more length will cost a lot more).

- I see many popular in-stores like best buy and walmart .ect, selling crappy cables for more than $10-20 = a double rip off.

- Sites that I recommend where you can get good quality hdmi cables at a low price are monoprice, cablesforless, newegg, tigerdirect, and amazon.



Hdmi versions:

-(Read the hdmi version charts and version information + more information). http://en.wikipedia.org/wiki/HDMI

- A product listed as having an hdmi version does not necessarily mean that it will have all of the features that are listed for that version, since some hdmi features are optional, so look for those features that you want when buying a hdmi cable.

- When a newer hdmi version comes out, it has a higher bandwitdth so it can support it's higher video/audio quality/abilities and any other features.



There is 5 different types of hdmi cables which are rated by speed/bandwidth.

- Standard speed, standard speed with ethernet channel, high speed, high speed with ethernet channel, and automotive.

- Standard speed hdmi cable: 2.25 ghz = The minimum bandwidth required to transmit a 1280x720p/60hz/8bit or 1920x1080i/60hz/8bit resolution.

- 4.95 ghz = The minimum bandwidth required to transmit a 1920x1080p/60hz/8bit resolution.

- 6.75 ghz = The minimum bandwidth required to transmit a Full High Definition 3D signal at 1920x1080/24hz resolution.

- High speed hdmi cable: 10.2 ghz = The current minimum bandwidth requirement of the High Speed HDMI standard is 10.2 ghz total for full feature quality support (1920x1080p/60hz/48bit or higher).



American wire guage (AWG).

- http://www.monoprice.com/home/home.asp?pn=help&idx=12

- The larger diameter of wire, the more current it can carry. In terms of hdmi this means that a larger gauge wire (smaller AWG number) is capable of a higher bandwidth than a smaller gauge (larger AWG number).

- 28 AWG = maximum of 10 feet to carry 10.2 ghz.

- 26 AWG = maximum of 12 feet to carry 10.2 ghz.

- 24 AWG = maximum of 15 feet to carry 10.2 ghz.

- 22 AWG = maximum of 25 feet to carry 10.2 ghz.

- Redmere technology breaks the AWG rule, a 36 AWG redmere = slim series is a maximum of 25 feet to carry 10.2 ghz and ultra slim series is a maximum of 65 feet to carry 10.2 ghz.

- So a 12 foot 28 AWG hdmi cable is not rated for the full 10.2 ghz required for a high speed hdmi cable. However, it doesn't just jump down to the minimum 2.25 ghz required for standard speed hdmi cable. It may be capable of 9.5 ghz, which is almost enough for the high speed rating, but because it isn't 10.2 Gbps, it must therefore be classified as a standard speed hdmi cable.



Heavy duty construction qualities below: (CL2 rating)

- Most cables use copper wire, and it may have a silver plating too.

- Braided mesh connector, and it may have a net jacket too.

- 22 or below > 24 AWG.

- Gold plated connector > silver plated connector:

- Full metal head shell construction > half metal head shell construction > plastic head shell construction. (Ferrite cores too).

.ect

Answer 9

1

Answer 10

I don't know the answers to your questions, but I've brought a few cables, just cheap ones like Asia own brand and they work perfect I use them for my xbox and blu ray player and I can't fault the quality

Hope this helps a little.