3C-2V is commonly marked on low cost
coaxial cable
Coaxial cable, or coax (pronounced ) is a type of electrical cable consisting of an inner conductor surrounded by a concentric conducting shield, with the two separated by a dielectric ( insulating material); many coaxial cables also have a p ...
used for domestic TV signals.
It is one of the options of the Japanese cable standard JIS C 3501.
* The 3 indicates approx diameter of the conductive core plus the dielectric (diameter of conductive core =0.5 mm, dielectric thickness =1.3 mm)
* The C indicates a characteristic impedance of 75 ohms
* The 2 indicates a solid PE dielectric core
* The V indicates a single braided outer conductor (W would be double)
Nominal loss at 100 MHz is 42 dB/km.
With its narrow core it is similar to
RG-59 cable;
RG-6 coax cable is better shielded and has lower losses.
Gallery
3C-2V cable 1.jpg, Connector
3C-2V cable 5.jpg, Cross section
3C-2V cable 8.jpg, Internal structure
References
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Standards of Japan
Signal cables