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<blockquote data-quote="chris229" data-source="post: 49865" data-attributes="member: 542614"><p>I don&#039;t think I can explain it any easier. the effectiveness of shielding is related to the FREQENCY of the noise. around 1mhz the shielding starts to SHIELD the cable. using a neon light as a test tool is retarded. If your worried about that freq of noise than you&#039;ll have to shield everything not just the wires. Do this test --- make a call on your cellphone and stick the antenna near your HU BET you get noise even with shielded cable. If you feel this type of noise needs to be shielded against rap your deck in tons of foil.//content.invisioncic.com/y282845/emoticons/crazy.gif.c13912c32de98515d3142759a824dae7.gif Most noise occuring in a car are in the audioible range like alt whine and relays clicking and poping. this isn&#039;t ture and doesn&#039;t even really matter as unbalanced type signals are single ended. The source impedance is in series with the signal. You are confusing balanced type signal parameters with single ended systems. what i&#039;m saying is if you think you have a need to shield against radio freq by all means don&#039;t stop at the signal cables. Wrap your processors,amps and HU in foil too. In a car having inducted noise problems UTP are a night and day difference campared to the coaxial cable that were design for noise free places ----like homes</p></blockquote><p></p>

[QUOTE="chris229, post: 49865, member: 542614"] I don't think I can explain it any easier. the effectiveness of shielding is related to the FREQENCY of the noise. around 1mhz the shielding starts to SHIELD the cable. using a neon light as a test tool is retarded. If your worried about that freq of noise than you'll have to shield everything not just the wires. Do this test --- make a call on your cellphone and stick the antenna near your HU BET you get noise even with shielded cable. If you feel this type of noise needs to be shielded against rap your deck in tons of foil.[IMG]//content.invisioncic.com/y282845/emoticons/crazy.gif.c13912c32de98515d3142759a824dae7.gif[/IMG] Most noise occuring in a car are in the audioible range like alt whine and relays clicking and poping. this isn't ture and doesn't even really matter as unbalanced type signals are single ended. The source impedance is in series with the signal. You are confusing balanced type signal parameters with single ended systems. what i'm saying is if you think you have a need to shield against radio freq by all means don't stop at the signal cables. Wrap your processors,amps and HU in foil too. In a car having inducted noise problems UTP are a night and day difference campared to the coaxial cable that were design for noise free places ----like homes [/QUOTE]

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