install a camera TVI 2MP on tower crane has noise+blurred

[MrBigD 0]

i’m install a camera TVI (2mp) on a tower crane to survellance worker, distance 140m use rg59 cable power supply(12V 1A) put near the DVR but video signal be electron noise and blurred. the cable has twisted a little. anyone have solution for this problem, help me Pls! (i intend to fix it with a balun but don’’t know is it work?)

[tomcctv 190]

Hi. First thing to do is change power supply .... you need better

 

12v 5amp.

[MrBigD 0]

Hi. First thing to do is change power supply .... you need better

 

12v 5amp.

i'm tried and not thing difference (12v12A)

[jeromephone 6]

Did you check the cable to see if it has any physical damage could be the shield is contacting the steel crane frame. also if you have another camera you could attach that and see if you have the same type of problem plus check the connectors.