Belden 1694A CM Rated RG6 Digital Coaxial Cable 1000Ft Black BL-1694A-1000
Belden's 1694A is a 75 Ohm RG-6, 18 AWG, HD-SDI, CMR
rated Coaxial Cable with a Solid Bare Copper Conductor, PE Insulation,
Foil and 95% Tinned Copper Braided Shield in a PVC Jacket. Belden 1694A
is a Low Loss Serial Digital RG6 coax designed to carry several video
signals including analog, 4x3 digital (SD-SDI), high definition (HD-SDI)
and even 3gig (1080p/50 or 1080p/60).
ApplicationsDigital Video6 Gb/s UHDTVHD-SDI 1080pVideo SurveillanceCable and satellite signal transmission
When to use RG59 or RG6! The
1505A (RG59) and the 1694A (RG6) have been the industry standards for
coax installations, production and more. But when do I need an RG59 or
an RG6? First we must know the differences.
RG59 vs RG6!The
difference between the two, in terms of construction, results in a
better frequency range for the RG6 cable. RG6 cables are often certified
to work up to 3Ghz. Although RG59 cables may work above the 2Ghz level,
it is not always the case and problems may still appear later as the
conditions change. Another key difference is the much lower attenuation
of RG6 cables. With very long lengths of cable, the attenuation can
degrade the signal to a point where it becomes noticeable. Using an RG6
cable simply means that you are able to use longer cables before you
have problems with attenuation.
One of the few downsides to the
RG6 cable is when it is used for applications that operate below 50Mhz. A
good example of this is HDTV, which only operates at around 37Mhz. The
shielding of RG6 cables cannot properly prevent noise at levels of below
50Mhz and the signal may be worse with an RG6 cable than with an
RG56.These type of specs are usually found in CCTV systems where
multiple cameras are used in and around flourescent lighting. RG59
excels at shielding the signal from RF that can be caused by flourescent
lighting. But it's prime purpose is to transport RF signal from your
anntena to your TV.
Because of these differences, each of these
two cables are often used for specific purposes despite being
interchangeable. RG6 is the cable of choice for satellite receivers
because it allows for better signal quality as well as insurance that
any future specification that could use frequencies close to 3Ghz would
still be compatible with the current wiring. RG59 is used for video
signals as it would provide the best signal quality for the frequencies
in use. Not to mention the cheaper price per length of RG59 cables
compared to RG6 cables.
To sum it up, RG59 is an excellent choice
for short runs of coax and CCTV installs as well as patch cables and
the RG6 is fantastic for longer runs and for digital TV there is no
argument that its performance is superior to RG59.
Know your cables!