radio shielding
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=133394
Printed Date: May 12, 2024 at 12:14 AM
Topic: radio shielding
Posted By: catalin capota
Subject: radio shielding
Date Posted: January 22, 2013 at 12:23 PM
Can anyone think of a way to shield a radio from inducing low buzzing sound from a GSM based GPS tracking device? Upon transmission the radio buzzes slightly.
Device can be moved but I was hoping for another solution.
Replies:
Posted By: catalin capota
Date Posted: January 22, 2013 at 12:25 PM
Vehicle is a mid 2000 Ford Ranger.. Completed a bunch of installs last week and so far only one out of 20 or so is buzzing.
Posted By: oldspark
Date Posted: January 22, 2013 at 4:18 PM
LOL - welcome to the tumorous & cancerous world of GSM.
It probably is easier moving the device. Even PCs and amplifiers can suffer GSM injection, and radios still require their exposed antennas.
But radios are usually fully case shielded so it might "only" be necessary to filter its power leads, speaker leads and other external connections - ie, maybe caps, else ferrites, but maybe even coaxial caps.
But generally separating an extra 1m or maybe 2m solves the problem.
Posted By: DYohn
Date Posted: January 23, 2013 at 10:16 AM
If you can't physically separate the devices you can try using mu-metal sheet around and between the units. It is designed to shield against EMI and can also work with RFI. ------------- Support the12volt.com
Posted By: oldspark
Date Posted: January 23, 2013 at 4:19 PM
RFC is EMI.
But if you are saying mu-metal does not shield as well for high frequencies...
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