Coax Cable…is the quality important?
Coax Cable…which to use? A small domestic installation can be severely affected by poor quality cabling. Even more so and far more expensive to repair would be if poor cables where connected to a distribution system that served a communal set up. Cables are installed from the aerial or dish down to the outlets to make the systems work. So which to use?
CT100 – 75Ohm Satellite TV Cable
The main difference between RG59 and RG6 cable is the size of the cables themselves. Standard RG59 coax cable has a 20 AWG copper centre and RG6 coax cable has an bigger 18 AWG copper centre conductor, offering greater bandwidth with a longer distance capability.
In general, RG6 is mainly used in CATV and Satellite DSS applications and RG59 is used in analog CCTV or video applications. RG6 also includes Dual or Quad Shield. It is made using foil and braided aluminum shields.
All frequencies that are normally used in High Definition are usually around 37 MHz. For all lower frequencies, an RG59 with a 95% all-copper shield is made to block RFI inclusion on base band frequencies. Because RG59 does not have a foil shield, it isnt suitable for use with satellite feeds or cable feeds.
RG59 has less signal reduction, or attenuation, over 100 feet. The shielding on RG59 does not work quite as well to maintain Ghtz level signals inside of the centre conductor. RG6 is better designed for maintaining the signal levels within the centre conductor. This is the reason RG6 is most commonly used for broadband CATV as well as satellite systems. Use RG6 for any Rapid Frequencies, and use RG59 for video frequencies. RG6 has an aluminium braid and an aluminium shield. RG59 comes with a copper braid.
CT100 Dual coax cable is commonly known as twin. It is first choice for professional TV installers.
Digital aerials with mast head splitters can also cabled with CT100 dual cable, eliminating the need to run two separate coax cables. CT100 dual coax cable can be split and routed to each room requiring signal from the aerial. Ensuring each room gets to enjoy Freeview HD TV.
CT100 dual coax cable is also a good choice for satellite dish installations.
Dual or Quad LNB connections on satellite dishes, can be simply wired using 1 or 2 cables, when using CT100 dual cable. Digital FreeSat+, FreeSat HD+, Sky+ and Sky HD+ satellite dishes, connected to televisions that use built-in or set top box receivers ALL benefit from the quality of CT100 dual cable, as it increases signal strength and enhances quality.
Coax cables deteriorate over time, mainly due to the gradual ingress of moisture or its performance may fail gradually over a number of years.
The performance of coax cable will be affected if it has been danaged during installation, any kinks, forcing into small bends, or crushing will affect performance greatly. If cable is kinked, twisted, squashed even scorched, or stretched, its performance will be affected.
It is important to use the correct size cable clips and any cable ties should not be installed too tight.
It is important to recognize that high quality cable is an important part of any installation, particularly for good quality digital reception.
For more information on Coax Cable or Tv aerials please contact us today