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FJR Motorcycle Forums
Technical & Mechanical Problems
Autocom/Kenwood interference
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<blockquote data-quote="Fred W" data-source="post: 951309" data-attributes="member: 3828"><p>I run a Starcom1 intercom (not Autocom) but they are very similar and both suffer from the same issue.</p><p></p><p>This problem can occur when any audio source is being powered from the same DC source as the intercom (i.e. the bike). It is noise on the ground from the Kenwood's power supply (battery eliminator), and it is getting into your autocom via the audio cable. The solution is to isolate the two (Kenwood from Autocom) via the use of an audio isolation transformer. What the transformer does it to transfer the AC component (audio) while isolating the electrical connection.</p><p></p><p>That is what all the fancy (And expensive) isolation cables are all about that both Starcom and Autocom sell. I'll bet there is one they will sell you to do that. If not, you could buy and make your own isolation cable using a small audio isolation transformer from Radio Shack or the like.</p><p></p><p>If the connector is a standard 3.5mm TRS mini connector, there are small plug in transformers out there that you can buy, like <a href="https://www.fullcompass.com/product/403590.html" target="_blank">this one</a></p></blockquote><p></p>
[QUOTE="Fred W, post: 951309, member: 3828"] I run a Starcom1 intercom (not Autocom) but they are very similar and both suffer from the same issue. This problem can occur when any audio source is being powered from the same DC source as the intercom (i.e. the bike). It is noise on the ground from the Kenwood's power supply (battery eliminator), and it is getting into your autocom via the audio cable. The solution is to isolate the two (Kenwood from Autocom) via the use of an audio isolation transformer. What the transformer does it to transfer the AC component (audio) while isolating the electrical connection. That is what all the fancy (And expensive) isolation cables are all about that both Starcom and Autocom sell. I'll bet there is one they will sell you to do that. If not, you could buy and make your own isolation cable using a small audio isolation transformer from Radio Shack or the like. If the connector is a standard 3.5mm TRS mini connector, there are small plug in transformers out there that you can buy, like [URL="https://www.fullcompass.com/product/403590.html"]this one[/URL] [/QUOTE]
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FJR Motorcycle Forums
Technical & Mechanical Problems
Autocom/Kenwood interference
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