UKHDMI FAQ

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1. What is HDMI?
HDMI (High-Definition Multimedia Interface) is the first and only industry-supported, uncompressed, all-digital audio/video interface. By delivering crystal-clear, all-digital audio and video via a single cable, HDMI dramatically simplifies cabling and helps provide consumers with the highest-quality home theater experience. HDMI provides an interface between any audio/video source, such as a set-top box, DVD player, or A/V receiver and an audio and/or video monitor, such as a digital television (DTV), over a single cable. HDMI supports standard, enhanced, or high-definition video, plus multi-channel digital audio on a single cable. It transmits all ATSC HDTV standards and supports 8-channel, 192kHz, uncompressed digital audio and all currently-available compressed formats (such as Dolby Digital and DTS), HDMI 1.3 adds additional support for new lossless digital audio formats Dolby® TrueHD and DTS-HD Master Audio™ with bandwidth to spare to accommodate future enhancements and requirements.

.HDMI is the de facto standard digital interface for HD and the consumer electronics market: More than 700 companies have become adopters, and nearly 200 million devices featuring HDMI are expected to ship in 2008, with an installed based of nearly one billion HDMI devices by 2010 (conservative estimates by In-Stat).

.Convergence – HDMI is the interface for convergence of PC and consumer electronics devices: HDMI enables PCs to deliver premium media content including high definition movies and multi-channel audio formats. HDMI is the only interface enabling connections to both HDTVs and digital PC monitors implementing the DVI and HDMI standards.

.Evolving standard – HDMI is continually evolving to meet the needs of the market: Products implementing new versions of the HDMI specification will continue to be fully backward compatible
with earlier HDMI products.

 

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2. What is HDCP and are these cables HDCP compliant?

HDCP stands for High-bandwidth Digital Content Protection. It is a digital rights management technology used by content providers such as movie studios to protect their media property from being illegally distributed. Since HDCP is a requirement of the HDMI format, all HDMI cables are HDCP capable by default. HDCP is a mandatory component of HDMI. There is no such thing as a non-HDCP HDMI cable or device. Yes, these cables will pass an HDCP signal.

 

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3. Will I get both audio and video by connecting just one HDMI cable?

Yes, HDMI is designed to deliver both high definition digital video and multi-channel digital audio. *Some A/V recievers will only provide switching and pass through functions and will not play the audio information in the HDMI signal. It will simply pass the signal through to the display.

 

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4. What is AWG?

AWG stands for "American Wire Gauge." It is the thickness of the wire inside the cable. The lower number AWG denotes thicker wiring and thicker overall cable. Thicker cables are recommended for longer cable runs because they offer less resistance along the signal path.

 

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5. What does the gold plating refer to?

Gold plating refers to the connectors. Gold plating provides resistance against corrosion that would otherwise impede signal transfer and could damage connections on equipment.

 

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6. What does the gold plating refer to?

Yes. All of our "Certified Cables" will easily pass a 1080p signal. Our extended length cables (40ft and longer) have been able to pass a 1080p signal in our own lab tests. In some situations, an equalizer was needed. Results will vary depending on the equipment being used. Not all pairs of equipment are capable of passing signals over extended runs.

 

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7. Why are your cables so cheap? Are they as good as the name brand cables the retail stores are trying to get me to buy?

Yes, the cables we sell are just as high in quality, construction, materials and reliability as those typically found in retail stores. We stand behind then with a life time warrenty. There are many reasons why we can bring you such great value. The main reasons would be as follows. Elimination of the middle man. are a national distributor working directly the factories and because of this we are basically bringing the product to you at wholesale prices. Retail stores and national brand products have much more overhead including, nationwide networks of stores, distribution warehouses, large commissioned sales staffs, advertising budgets, packaging, etc. But the main reason would be mark up. Most retail work on a "Loss Leader" model of sales. They advertise high ticket items at great prices leaving them with little to no margin. They make up that margin with all the add on items they can sell you such as extended warrenties, batteries, cases and cables. They sell these items with a very high mark up.

 

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8. These cables say "For In-Wall Use." Does that mean they can only be used in wall? What is CL2?

"For In-Wall Use" refers to the CL2 rating these cables receive from Underwriters Laboratories (UL). It means that these cables have a slow burning outer jacket, should meet most fire codes and are safe for in-wall installations. The CL2 rating does not affect the appearance or performance of the cables. They can be used in or out of wall.

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9. Where can I find further information regarding HDMI specifications?

A great resource is the FAQ's page on the HDMI.org website.
http://www.hdmi.org/learningcenter/faq.aspx

 

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10. Do I need 1.3 / 1.4 cables for 1080p?

No, HDMI has supported 1080p from the start. All versions of HDMI have the potential to support 1080p.

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11. How do I know if I need male to male cables or male to female?

As a rule, consumer electronics devices ALWAYS have female ports on them. (a protruding male connector would break off too easily) So, for connecting two devices together, you need a male to male cable. Male to female cables are used to extend existing cables.

 

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12. Will HDMI 1.3a cables work with my non-1.3 devices? Will non-1.3 cables work with my 1.3 devices?

Yes, all versions of HDMI are backward and forward compatible. They will all work but non-1.3 cables will not support extended bandwidth features of 1.3 devices like "Deep Color."

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13. What is Category 2?

Recently, HDMI Licensing, LLC announced that cables would be tested as Standard or High-Speed cables. Standard (or “category 1”) cables have been tested to perform at speeds of 75Mhz, which is the equivalent of a 1080i signal. High-Speed (or “category 2”) cables have been tested to perform at speeds of 340Mhz, which is the highest bandwidth currently available over an HDMI cable and can successfully handle 1080p signals including those at increased color depths and/or increased refresh rates. High-Speed cables are also able to accommodate higher resolution displays, such as WQXGA cinema monitors (resolution of 2560 x 1600). It is possible for a cable to pass a 1080p signal and 1.3 extended bandwidth signal without being Category 2. These cables would have bandwidth that are beyond category 1 but below category 2. Most of our non-category 2 cables perform in this range.

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14. I ordered 1.3a cables but the cables I recieved have 1.3 stamped on them. Did I get the right cables?

The specs inscribed on the cables are placed there by the cabling manufacturer. The ones that mill with wires and make the runs of bulk wires. The 1.3 inscription is to indicate that the cabling was designed to be used to construct cables that will meet the overall 1.3 specification. The raw cabling is purchased by our cable assembling plants who also buy connectors and other parts and assemble the pieces to make a complete, terminated cable and varying lengths. A complete cable is then submitted for certification so that the entire line of completed cable will be certified at 1.3 at whatever sub version is the current at the time of submission. So, while the "cabling" is made to meet 1.3, it is the complete cable that is certified as 1.3a.

 

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15. Do you carry HDMI 1.3a cables that are longer than 25ft?

Currently, 25ft is our longest 1.3a certified cable. Though longer cables can be made to the same construction standards as shorter certified cables, there are no 1.3 certified cables beyond 25ft that we are aware of at this time.

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16. Will these cables work with my new 120hz display?

Yes, absolutely.

 

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17. Do you carry HDMI 1.3a cables that are longer than 25ft?

The idea that you need a cable that specifically has that bandwidth to support the 120hz feature is a fallacy used to sell overpriced cables. Fact is, source devices play media that is recorded at 24fps, the frame rate of film.

The NTSC standard which television is base on, on the other hand, is about 30hz (actually 29.97 fps). Progressive scan double the refresh rate to 60hz by drawing a complete frame with each pass rather than requiring two passes per frame.

To get the films 24fps to match the NTSC''s 60 hz progessive refresh rate, devices uses a process called "3:2 pull-down." Every other frame is flashed 3 times and the other frames are flashed only twice. However this leads to a slight motion jitter due to the uneven exposure of the frames. With a 120hz display, the TV takes the 60hz signal and doubles it to 120hz. The benefit of doubling the refresh rate is that the original 24fps goes into 120 evenly by 5.

Meaning each frame is flashed 5 times per second. This leads to smoother motion in the video image. So the signal passing through the cable is only 60hz. There are currently no source devices that send out a 120hz signal so there is no

extra load on the cables bandwidth.

 

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18. Will I still be able to receive audio through hdmi if I use this adaptor?

You will no longer be able to receive audio when converting HDMI to DVI.

 

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19. What are the mini HDMI adapters and cables used for?

The mini HDMI adapters and cables are designed to be used with small portable devices such as camcorders and digital still cameras.

 

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20. What is the difference between HDMI 1.3 and HDMI 1.3a, 1.3b or 1.3c?

For consumers, there is no difference between HDMI version 1.3 and 1.3a or 1.3b. These minor revisions to the specification typically relate to manufacturing or testing issues and do not impact features or functionality. In addition, HDMI Licensing, LLC is actively working with manufacturers to reduce confusion for consumers by de-emphasizing version numbers and focusing instead on product features and functionality. The latest HDMI Specification is v1.3c.

 

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21. What are the advantages of HDMI over existing analog video interfaces such as composite, S-Video and component video?

Quality: Because HDMI is a digital interface, it provides the best quality of the video since there are no lossy analog to digital conversions as are required for all analog connections (such as component or S-video). The difference is especially noticeable at higher resolutions such as 1080p. Digital video will be sharper than component, and eliminates the softness and ghosting found with component. Small, high contrast details such as text bring this difference out the most.

Ease-of-use: HDMI combines video and multi-channel audio into a single cable, eliminating the cost, complexity, and confusion of multiple cables currently used in A/V systems. This is particularly beneficial when equipment is being upgraded or added.

Intelligence: HDMI supports two-way communication between the video source (such as a DVD player) and the DTV, enabling new functionality such as automatic configuration and one-touch play. By using HDMI, devices automatically deliver the most effective format (e.g 480p vs 720p, 16:9 vs 4:3) for the display that it is connected to - eliminating the need for the consumer to scroll through all the format options to guess what looks best.

HD Content-Ready: HDMI devices supporting HDCP have the comfort of knowing they will have access to premium HD content now and in the future. HD-DVD and Blu-ray have delayed the activation of the image constraint token (a.k.a. content protection flag) with today’s HD movies to help minimize potential issues caused by the transition, but are expected to activate this in a few years, meaning future HD movies will then not be viewable at HD resolutions over unprotected interfaces such as analog component.

 

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22. Are all of the new HDMI versions backward compatible with previous versions?

Yes, all HDMI versions are fully backward compatible with all previous versions.

 

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23. What is the difference between a "Standard" HDMI cable and a "High-Speed" HDMI cable?

Standard (or "category 1") cables have been tested to perform at speeds of 75Mhz, which is the equivalent of a 1080i signal. High Speed (or "category 2") cables have been tested to perform at speeds of 340Mhz, which is the highest bandwidth currently available over an HDMI cable and can successfully handle 1080p signals including those at increased color depths and/or increased refresh rates. High-Speed cables are also able to accommodate higher resolution displays, such as WQXGA cinema monitors (resolution of 2560 x 1600).

 

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24. What is the difference between DVI and HDMI?

HDMI is DVI with the addition of: Audio (up to 8-channels uncompressed)
Smaller Connector
Support for YUV Color Space
CEC (Consumer Electronics Control)
CEA-861B InfoFrames

 

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25. What does Extender/Equalizer do?

Extender/Equalizer allow you to transmit high definition audio/video streams across long distance without any digital degradation. It also corrects any digital error in the stream and provides 40dB equalization to compenstate for any cable transmission loss. To ensure a crystal clear HDTV picture it will stop any digital noise (sparkles).

 

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26. I'm having trouble with a connection to a particular device. What steps should I take to try to correct the problem?

Review the following

  1. Try swapping out the cables.
  2. Make sure that the device works with a direct connection to the display without the switcher in between.
  3. Make sure you have the switch and television turned on before turning on any source devices. If everything is already on, try turning off and on the source device.
  4. Try every port on the switch.
  5. Make sure you have the latest firmware loaded on your devices.
 

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27. I've tried switches from other vendors who said their switch would work with any HDMI equipment but it was incompatible with my setup. How do I know if your switch will work with my equipment?

The problem with HDMI switchers is there is no one switch that is compatible with every device out there. In fact, even with the same brands, one model of DVD player may work with a particular switch but a different model will not.

Also, compatibility is not specific to a single device. Instead it's a 3 way relationship between the source, the switch and the display. So, a particular dvd may work through a particular switch to a certain TV, but not to another TV, but that TV may work through the switch with another DVD player. Given that, you end up with infinite number of possible combinations so it's impossible to know based on brands what devices with work with a particular switch and what won't. The trick is to find a switch that will work with your particular combination of devices. In theory, a switch will work with every device but only if it's connect in turn to another device that it is compatible with. Unfortunately, finding the right switch is a bit of trial and error.

The other vendors weren't lying but they didn't give you a complete picture.

 

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28. The front toggle button on the switch works fine, but the switch doesn't respond to the remote control. How do I determine if the remote is working or not?

The easiest way to see if an IR remote control is transmitting a siganl or not is to check it with a digital camera. Even though IR is invisible to the human eye, it can be detected by the electronic sensors on a digital camera.

If you have a digital camera or camera phone, point the remote at the cameras lens and look at it through the screen of the camera. Press a button on the remote and you should see a pale purple light pulsing on the front of the remote. If you don't get any light, try replacing the cameras batteries.

 

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29. I have 2 HD displays, how can I switch between the 2 displays?

You can easily switch between the 2 HD Displays by using the 4x2 HDMI Cross switch. The 4x2 HDMI cross switch has 4 Inputs and 2 Outputs. The 4x2 HDMI Cross switch has the ability to let you watch 2 different programs simultaneously.

For example, you can watch a HD Sports event on your projector and a DVD or Computer can be displayed on a secondary HD display all at the same time! The Cross switch does not split or show the same program on both outputs. The advantage is that you can watch 2 different programs on 2 displays or simply switch between both displays. A huge benefit is for viewers with a projector and a LCD/Plasma who then can use the cross switch to view the projector on "special" events in order to save wear and tear on the bulb life.

 

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30. Can I split HDMI and watch the program on 2 HDTVs?

HDMI can be split and distributed to multiple HDTV using a 1x2 HDMI splitter Distribution Amp. There are some HDMI "Y" cables that can physically connect 1 HDMI source to 2 HDTV, but that will not work. You must use a 1x2 HDMI splitter Distribution Amp.

A passive "Y" cable will not be able to process the HDCP content protection protocol and will cause the HDTV to shut down. The 1x2 HDMI splitter Distribution Amp has internal HDCP keys that can independently handle multiple HDCP sessions and allow 1 single HDMI program to be displayed on multiple HDTV.

 

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31. How do I distribute HDMI to more then 2 HDTVs?

As the quality of HDTV and HD content continue to improve, electronic retailers need to clearly demonstrate the incredible picture quality that is achievable. Traditional cabling methods such as composite or component video simply do not fully exploit the capability of the HD video.

Using HDMI assures that the best picture quality achievable is displayed. The Pro HD series 3x8 HDMI Distribution Amplifier distributes Full 1080P video streams to 8 HDTV’s simultaneously. The 3x8 HDMI distribution amps is fully scaleable and can distribute HDMI to more than 8 HD displays by cascading multiple units.

 

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32. How to distribute HDMI over standard Ethernet Cables?

It is possible to distribute HDMI over a pair of standard Ethernet cables by using HDMI to Ethernet converters. The HDMI Ethernet converter enables transmission of 1080P HD HDMI digital video and audio over a pair of standard Ethernet CAT5/6 cables. Using HDMI over Ethernet Transceiver allows installers to use standard CAT 5/ 6 cables for ease of installation. Ethernet cables and connectors are easily field terminated thus allowing installers to easily install the proper length cable needed for ultimate flexibility and eliminate logistics problems of having custom length HDMI cables. No need top pre-measure and customer order cables. Allows transmission of 300ft (1080i) and 150ft (1080p) over Ethernet cables.

 

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33. How do I get surround sound to my Audio Receiver from HDMI?

There are several ways to connect sound from your HD source player to your Surround Sound System. If your Audio Receiver has HDMI audio processing capability- Simply connect the HDMI source to your Surround System via the HDMI connection.

If your Audio Receiver only has Optical Audio surround sound input- Octava HDMI distribution amplifiers provide HDMI to Optical audio ( 5.1)conversion. You can connect your HDMI sources to the Octava HDMI Distribution Amplfiers and audio will be converted to Optical format AND will be available on the HDMI ouput and the Optical output. This allows you to get audio directly to the HDTV AND/OR thru the Surround Sound Receiver.

 

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34. My HDTV only has DVI. How can I get HDMI/DVI video and stereo sound to it?

Switching Multiple digital video and Stereo Audio to a DVI input HDTV may be difficult because only 1 set of L/R stereo Audio Input is mapped to the DVI input. Switching Multiple digital video and Stereo Audio to a DVI input HDTV may be difficult because only 1 set of L/R stereo Audio Input is mapped to the DVI input.

 

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35. Is this plate HDMI 1.3 compatible.?

Yes, this plate is 1.3 compatible.

 

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