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Noise on radios = NCE DCC - Electrics - DCC - Getting You Started. - Your Model Railway Club
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 Posted: Sat Aug 18th, 2018 09:11 am
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Sol
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My NCE system, as soon as it is switched on , creates large noise on my AM band radio & not so much on the FM band. All locos have been isolated from the track.

Can other NCE users advise what they find with a radio next to their power buss cables please?



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Ron
NCE DCC ; 00 scale UK outline.
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 Posted: Sat Aug 18th, 2018 06:39 pm
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The Q
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Dcc is a 9khz square wave signal modified to pass "words" to the locomotive  and is inherently  noisy, with modern radios and DCC equipment being plastic bodied there is no screening to prevent the radio picking up noise. The electronics to run the display and the tiny  computer inside, along with The oscillator/ clocking system will be running even when there is no output to the track.



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 Posted: Sat Aug 18th, 2018 11:39 pm
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Sol
A modelling Moderator.


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Location: Evanston Gardens, South Aust, Australia
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:oops:    I found out how the noise is created - one of these which is switched on at the same time
http://i.ebayimg.com/images/i/291115529670-0-1/s-l1000.jpg



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Ron
NCE DCC ; 00 scale UK outline.
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 Posted: Mon Aug 20th, 2018 08:34 am
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The Q
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Joined: Wed Mar 9th, 2016
Location: Somewhere In Norfolk, Or Maybe Scotland, United Kingdom
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Yes, switched mode power supplies have an oscillator inside as well, they too are very noisy electronically.



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