The High Definition Multimedia Interface (HDMI) port is quickly pulling out analog video outputs like RCA composite video jacks that used to be very common for older video equipment. Compared to RCA, HDMI port can provide high quality digital connection for both audio and high definition video signals. Now the HDMI cable is present in all contemporary machines.
When you have an older video device, though, you will need to use an adapter in order to convert the digital video signal into an analog one. To convert the digital quality in HDMI back to its analog counterpart, you must plug in your HDMI video cable output into the HDMI input of any Composite and S-Video Down-Converter. Plug the RCA video cable from the composite output of the HDMI to the RCA input video device. Since RCA usually does not have audio, you can plug the HDMI cable audio output to a RCA stereo cable from the RCA output jacks. If you can afford to purchase more sophisticated contemporary equipment that are HDMI ready, then going through conversion would not be necessary.
There are two categories for a usual HDMI 1.3. Category 1 cable is marketed as “standard” which is tested for 74.5 MHz, best for resolutions such as 720p60 and 1080i60. Category 2 is known as “high speed” tested at 340 MHz best for resolutions such as 1080p60 and 2160p30. Both categories could meet specific required perimeters for interpair skew, far end crosstalk, attenuation and differential impedance. HDMI cables that can reach 5 meters are good for Category 1 specification and they can be manufactured inexpensively using 28 AWG conductors. If the quality construction and material can have 24 AWG conductors, the HDMI to RCA cable can reach 15 meters.
Level of Quality of HDMI
An HDMI cable is made up of shielded twister pairs with electrical impedance of the order of 100 ohms and other separate conductors. Even if the performance of HDMI cable, converter and adaptor is not highly dependent on the length of the cable, the signal attenuation is still dependent on the construction quality and conducting material of the HDMI that upgrades per version. Compared to lower versions, for example, the HDMI 1.4 specification has standard HDMI cable up to 1080i and 720p, standard HDMI Cable with Ethernet, Automotive HDMI Cable, High Speed HDMI Cable of 1080p, 4K, 3D and deep colour and High Speed HDMI Cable with Ethernet.
Best HDMI Cable, Converter and Adaptor Brands
There are many brands for an HDMI cable but two of the most reliable brands are Monster 1000HD Ultimate High-Speed HDMI Cable and Cmple 28 AWG HDMI 1.4 Cable.
Monster 1000HD Ultimate High-Speed HDMI Cable has the largest bandwidth ready for any cable available on the market. The downside is that it is more expensive compared to other brands and that it’s 17.8 Gbps bandwidth fades on very long distances. Despite this possible disadvantage, this brand is still highly favorable because of the high-quality manufacturing and sophisticated design.
Compared to Monster 1000HD, the Cmple 28 AWG HDMI 1.4 Cable with Ethernet is cheaper and has a wider bandwidth to support contemporary audio-visual technologies. The only issue for this brand is that it does not have the highest purity copper conductors. Still, this cable is HDMI certified and it includes an Ethernet channel that is best for home use.