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hennity

Video leads and dark picture ?

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Can anyone explain to a newbie in the cctv field the qualities of leads etc foe me please ?

 

i have been using pcb board camera that i find are low profile and with the right lens cover all the areas i need for my home,some ive got also capable of 940nm but a lead was broken and when i opened the lead up it was a very cheap and nasty job that came with the camera,i read that lead are supposed to be shielded but this was just a shared negative earth lead twisted in a very crude fashion round the video lead,

 

i have tried to repair it but the picture is very dark now,much darker than it used to be and i dont know where to get these small connector leads,what did i do?

 

can someone explain about leads and if shielding makes any difference please ?

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