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RG6U aluminum braid cable is not very good for CCTV. Very short runs, under 100' maybe. Aluminum shield is not suitable for the frequencies that CCTV operates at. You should use 75% or better copper braid in CCTV.

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Coax is 75 ohms for CCTV. Coax can be other impedances though so you have to check on the jacket to see what it says. If it is not a copper braid copper core cable then it has very limited uses in CCTV and should be reserved for RF use.

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Hello

 

My cable says RG 59/U

 

is that ok to use? the size of the cables will be cut at about 40MTRS APOX

 

cheers

daniel

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