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To: ACAN who wrote (80260)	12/4/2012 11:09:36 PM
From: Elroy	Read Replies (1) \| Respond to of 110653

The setup is identical to how it was two days ago when it was working fine. I've changed the speaker, and this other speaker works fine with the same wire. The problem speaker is actually a mini-woofer which takes in the coaxial cable from the laptop, then has two small speakers attached to it by coaxial cables. The humm comes out of the woofer even if the other two speakers are not attached, and there is no sound/music playing.

To: ACAN who wrote (80260)	12/5/2012 4:44:22 AM
From: maceng2	Read Replies (1) \| Respond to of 110653

I actually hear conversations between cab drivers and their base, if they are in the vicinity. I would say you would possibly have an amplifier circuit that needs screening in addition to a possible ground problem. That is, there is part of the amplifier circuit that needs to be surrounded by a metal screen. I would seek advice from a knowledgeable electrician for a solution. It has to be someone who knows their way around the insides of a radio. Unless of course you are happy to listen to the conversations.