3C-2V is commonly marked on low cost coaxial cable used for domestic TV signals.
It is one of the options of the Japanese cable standard JIS C 3501.
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.
JIS C 3501
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