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Getting rid of White NOISE
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<blockquote data-quote="BnGRacing" data-source="post: 7476258" data-attributes="member: 557400"><p>You don't have a cheap D-Class amp do you? Those radiate a lot of noise and can affect cell phones and radio reception. Your Alpine gear may be amplifying the noise given off by your amplifier.</p><p></p><p>You may want to try a GOOD 1 farad capacitor to act as a noise filter. Pick up a used one and see if that does the trick. If you're using a decent Class A/B amp, you have other issues that may be related to having too much GAIN or the processor is located by something emitting a lot of noise.</p><p></p><p>As far as the processor staying on when you unplug the radio, it could just be the capacitors within the unit discharging themselves through the LEDs. Some amps can have their "Power On LED" stay lit for a couple minuted after they've been removed from the vehicle. You may be experiencing something similar. Also, the processor will pull a ground through the antenna going into your HU as that's another ground source.</p><p></p><p>The only other idea I have is something you already mentioned; Alpine DSPs are noisy. I've never come across an electronic DSP that didn't have some sort of issue with it whether it being lunching itself, mysteriously resetting, popping, or noise/static. Lets hope this isn't the case for your Alpine unit.</p></blockquote><p></p>
[QUOTE="BnGRacing, post: 7476258, member: 557400"] You don't have a cheap D-Class amp do you? Those radiate a lot of noise and can affect cell phones and radio reception. Your Alpine gear may be amplifying the noise given off by your amplifier. You may want to try a GOOD 1 farad capacitor to act as a noise filter. Pick up a used one and see if that does the trick. If you're using a decent Class A/B amp, you have other issues that may be related to having too much GAIN or the processor is located by something emitting a lot of noise. As far as the processor staying on when you unplug the radio, it could just be the capacitors within the unit discharging themselves through the LEDs. Some amps can have their "Power On LED" stay lit for a couple minuted after they've been removed from the vehicle. You may be experiencing something similar. Also, the processor will pull a ground through the antenna going into your HU as that's another ground source. The only other idea I have is something you already mentioned; Alpine DSPs are noisy. I've never come across an electronic DSP that didn't have some sort of issue with it whether it being lunching itself, mysteriously resetting, popping, or noise/static. Lets hope this isn't the case for your Alpine unit. [/QUOTE]
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Getting rid of White NOISE
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