trials_pimp Posted November 20, 2006 Report Share Posted November 20, 2006 I have my Ipod Rigged up to my Car stereo with one of those red and white into earphone type cables.And Ive just bought a cheap Ipod car charger. Only problem is that the charger interfers with the stereo, so I get static and engine electonice interference.What I need is to build a supressor for the charger.Whos up for the task?/ Quote Link to comment Share on other sites More sharing options...
Extreme_biker0 Posted November 20, 2006 Report Share Posted November 20, 2006 I have my Ipod Rigged up to my Car stereo with one of those red and white into earphone type cables.And Ive just bought a cheap Ipod car charger. Only problem is that the charger interfers with the stereo, so I get static and engine electonice interference.What I need is to build a supressor for the charger.Whos up for the task?/What's a supressor?Whatever anyway the way i stopped the noise (which sounded like a turbo in the way it changed pitch with the engine revs) was to groud the connected device. With my dvd player this just meant a wire from its metal case to somehere metal on the car (which is earth/ground).It still makes the noise when the pda/satnav's connected, becasue there's nowhere to attatch a chosty metal wire to it, but it's less pronounced on that anyway so I havent given it too much thouhgt.Maybe grounding the metal case of the ipod would work?Maybe a supressor does just that! What is one!? Quote Link to comment Share on other sites More sharing options...
Gavyn. Posted November 20, 2006 Report Share Posted November 20, 2006 (edited) wrap the ipod and charger in tin foil it might workor atleast it should prevent the ipod and charger emitting any signals which the stereo may pick up much like wrapping a mobile phone in tinfoil prevents interferance with a stereo Edited November 20, 2006 by Gavyn L Quote Link to comment Share on other sites More sharing options...
trials_pimp Posted November 20, 2006 Author Report Share Posted November 20, 2006 A supressor is a Device that filters out unwanted noise. In this case engine noise.They used to be fitted to old car ignition systems to prevent the interference with the radio signal.Earthing the Ipod wont really help, as it needs to stay monile for when I ride/walk.The cigar lighter is already earthed, but I may try another earth the runs directly to chasiss if nothing comes up Quote Link to comment Share on other sites More sharing options...
Extreme_biker0 Posted November 20, 2006 Report Share Posted November 20, 2006 wrap the ipod and charger in tin foil it might workor atleast it should prevent the ipod and charger emitting any signals which the stereo may pick up much like wrapping a mobile phone in tinfoil prevents interferance with a stereoYou may be onto something there... I mean, theres all this dangerous radiation from mobiles yeah, why don't thry wrap mobiles in tin foil (obviously on the inside) to stop the radiation leaking out?! Problem solved. Patent pending paent pending patent pending!But anyway, it's nothing to do with the ipod emitting radiation.In fact, i just had a little think about this, and the problem is that that spinney thing that sends the high voltage down your HT leads (i'm no petrol head!) is causing flutuations in voltage that your line-in in your stereo interprets as sound and thats why you can hear it in the speakers. Now, i'm not sure about this, but if the signal is on the outside of the cable ONLY, then one of those electromagnetic guard things you put on the end of plugs might do the trick. You know, those things that you clip around the cable. Look on all the cables going into your computer, they all have them but i cannot think of the name.... Quote Link to comment Share on other sites More sharing options...
Fish-Finger-er Posted November 20, 2006 Report Share Posted November 20, 2006 In fact, i just had a little think about this, and the problem is that that spinney thing that sends the high voltage down your HT leads (i'm no petrol head!) is causing flutuations in voltage that your line-in in your stereo interprets as sound and thats why you can hear it in the speakers. kinda, but not quite, your onabout a distributor, which most cars dont have no more. as its all ecu controlled an distributorless ignition. whats happening if its increasing with engine revs, is in fact the voltage changes from the alternator. may be worth buying a ready made alternator suppressor, from the likes of motor world etc. for the £2 or so itll cost, see if it rectifies it. Quote Link to comment Share on other sites More sharing options...
Extreme_biker0 Posted November 20, 2006 Report Share Posted November 20, 2006 kinda, but not quite, your onabout a distributor, which most cars dont have no more. as its all ecu controlled an distributorless ignition. whats happening if its increasing with engine revs, is in fact the voltage changes from the alternator. may be worth buying a ready made alternator suppressor, from the likes of motor world etc. for the £2 or so itll cost, see if it rectifies it.Thank you sir, I did not know that Can't be much to them if they're only 2 squid, and definately worth it if it stops the buzzing! Quote Link to comment Share on other sites More sharing options...
munkee Posted November 20, 2006 Report Share Posted November 20, 2006 Foil doesnt work.. i have interference on my 43" tv in the front room.. its a f**king ball ache we cant work out where its coming from. We have wrapped the whole tv and antenna etc in foil and made a tiny hole to see if the screen was ok but was still f**ked. Its so intermittent.. possibly thermostat causing it but it seems to last for like 20 minutes sometimes so wont be that (thermostats cause interference for a couple of seconds). The signal coming in is perfect as the tv guy showed us on this weird graph thing and a tiny tv console. But yea.. ofcom were supposed to come and havent yet so if anyone wants to also build a supressor for my tv.. ill pay. Quote Link to comment Share on other sites More sharing options...
Haz Posted November 20, 2006 Report Share Posted November 20, 2006 Tryed whacking a couple of magnets either side of the wire?Quite often with interferance, certainly on optical systems such as TVs and computer monitors, a large electric current nearby will cause the problem, you can remedy it by using those circular magnet clip things next to it, they just grip on the wire, with no connections.I'm not entirely sure on that, but it could well be worth looking into. Quote Link to comment Share on other sites More sharing options...
Extreme_biker0 Posted November 21, 2006 Report Share Posted November 21, 2006 Tryed whacking a couple of magnets either side of the wire?Quite often with interferance, certainly on optical systems such as TVs and computer monitors, a large electric current nearby will cause the problem, you can remedy it by using those circular magnet clip things next to it, they just grip on the wire, with no connections.I'm not entirely sure on that, but it could well be worth looking into.Thats those things i was trying to describe. I think you can get them from b&q etc. Good look asking for them Quote Link to comment Share on other sites More sharing options...
craigjames Posted November 21, 2006 Report Share Posted November 21, 2006 Thats those things i was trying to describe. I think you can get them from b&q etc. Good look asking for them you mean a ferrite core the you clip round the wire?? suppresses static and electrical intereference, might work Quote Link to comment Share on other sites More sharing options...
br3n Posted November 21, 2006 Report Share Posted November 21, 2006 the noise that "sounds like a turbo when you rev" is due to crap rca leads.Lee stop being cheap and buy a decent headunit with ipod control unit, i happen to know someone selling one Quote Link to comment Share on other sites More sharing options...
CBProductions Posted November 21, 2006 Report Share Posted November 21, 2006 the noise that "sounds like a turbo when you rev" is due to crap rca leads.Lee stop being cheap and buy a decent headunit with ipod control unit, i happen to know someone selling one First bit of sense in the thread, yes the signal to nosie ratio on you cables wil be the cause and also if there are any ungrounded places nearby to the runs. Jesus wept some funny replies in here. Quote Link to comment Share on other sites More sharing options...
Fish-Finger-er Posted November 21, 2006 Report Share Posted November 21, 2006 the noise that "sounds like a turbo when you rev" is due to crap rca leads.Lee stop being cheap and buy a decent headunit with ipod control unit, i happen to know someone selling one someone once again reading the whole wiring up a sub thing.and hearing that and thinking its the issue here. its the same problem, but it may not be down to the RCA leads. reason it happens in sub wiring is most idiots run the positive feed and the RCA cables down to there amp in the same area, which with the voltage change down the positive feed causes interference in the (often) poorly insulated RCA cables. dont see how crap RCA cable would be effecting this set up(unless his ipod charger is in a close proximity to these RCA leads. and they are of poor quality, but would of thought hed of noticed it anyway when there was a current flowing through his cigarrette lighter. Quote Link to comment Share on other sites More sharing options...
trials_pimp Posted November 21, 2006 Author Report Share Posted November 21, 2006 Brendan I might be interested if you didnt want a grand for it.And if my headunit is sooo shit, why do you want it?#My car does Have a distributor, so Ignition interference could be an issue.The noise is only present when the charger is plugged in, without it, its fine.So there could be an earth issue in the engine bay thats finding its way through the cigar lighterI need to find som time to experiement with a few things Quote Link to comment Share on other sites More sharing options...
Extreme_biker0 Posted November 21, 2006 Report Share Posted November 21, 2006 (edited) First bit of sense in the thread, yes the signal to nosie ratio on you cables wil be the cause and also if there are any ungrounded places nearby to the runs. Jesus wept some funny replies in here.Ha yeah, like the fact that my system has no rca leads. Duh. The interference comes from the power supply, in my case.Getting some new, high quality rca leads would do, well, absolutely f**k all seeing as there are none to replace. Edited November 21, 2006 by Extreme_biker0 Quote Link to comment Share on other sites More sharing options...
br3n Posted November 21, 2006 Report Share Posted November 21, 2006 before you say i blagged that info from another thread, give me credit. I cba reading most peoples crap its just cos this was posted by lee thought i'd have a gander.Also lee i dont want your headunit, thats why i sold you it in the first place, Just would benefit you to have mine and I need a cd player to sell with the car Quote Link to comment Share on other sites More sharing options...
Extreme_biker0 Posted November 21, 2006 Report Share Posted November 21, 2006 before you say i blagged that info from another thread, give me credit. I cba reading most peoples crap its just cos this was posted by lee thought i'd have a gander.Also lee i dont want your headunit, thats why i sold you it in the first place, Just would benefit you to have mine and I need a cd player to sell with the car I didn't say you copied it. I just said it was completely wrong (in my case). If it was you're own writing, take pride in that. Quote Link to comment Share on other sites More sharing options...
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