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#1
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RAC FAQ, section 2.1; question
Is there another way to perform the following process (in the rac FAQ,
section 2.1.1): "After you have determined that there is noise in the system, determine if the amplifier is causing the noise. To do this, mute the signal at the inputs to the amp by using shorting plugs" I do not have shorting plugs, nor do any of the car stereo outlets near me. Also, is there any product available for coating/wrapping/enclosing wires in order to prevent noise due to power and signal wires being in close proximity? |
#2
Posted to rec.audio.car
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RAC FAQ, section 2.1; question
On Apr 29, 5:34 pm, "robert.waters" wrote:
Is there another way to perform the following process (in the rac FAQ, section 2.1.1): "After you have determined that there is noise in the system, determine if the amplifier is causing the noise. To do this, mute the signal at the inputs to the amp by using shorting plugs" I do not have shorting plugs, nor do any of the car stereo outlets near me. Create them yourself....cut an old pair of RCAs and twist the inner wire and she shield wire together---thus creating a short. Also, is there any product available for coating/wrapping/enclosing wires in order to prevent noise due to power and signal wires being in close proximity? Yeah, it's called "distance." There is pretty much nothing you can do to reject low-frequency (where "low" means less than MHz or GHz range) radiated noise. To minimize the radiated noise, the best thing you can do is to route your signal cables as far away from "noisy" cables as possible. If they must cross, make sure they cross a right-angles. And if all that fails, and you're sure that the noise is radiated (and not induced by a ground loop), then it might be time to purchase a balanced line driver...but that shouldn't be necessary in most situations. -dan |
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