Bleeding On Computer Speakers When Transmitting

[DJboutit]

When I transmit I am bleeding over to computer speakers which of these 2 ferrite chokes are better for fixing this problem??

http://comingsoon.radioshack.com/ra...-ferrite-choke-core/2730105.html#.VYy3MZrTTC4

http://comingsoon.radioshack.com/snap-choke-core/2730069.html#.VYy2D5ooJHk

Which end of the speaker cord do I do one of these ferrite chokes the end that is closer to the speaker or the end that is closer the plug that plugs in to the computer??

 

[9C1Driver]

That happens a lot, you just have to mess with em and see what works.

 

[jessejamesdallas]

Get a radio that's not all hacked-up, peaked & tweaked out the wazoo and you won't have that problem...If your bleeding over on the speakers, your probably bleeding on your neighbors too...Only a mater of time before you get that knock on the door...

 

[222DBFL]

Yep, if you have neighbors with some old or even newer computer speakers, like JJD said be prepared for a knock at the door or some rude looks from the neighbors. Try a low pass filter. And adding some ferrite chokes at the feedpoint may help. As far as controlling your issue, place the ferrite choke as close the the speaker itself as possible and one on the other end as well where it plugs into the radio. Get one that you can make a few wraps onto. And keep the wraps tight. And good luck on getting it resolved. Look around the house now as you may find other issues. Just sayin.

 

[2RT307]

Bonus talkback!

73,
Brett

 

[DJboutit]

I picked up a B&W TVI Filter from the local ham radio store for $10 I hope this removes the interference here are some pics of it

https://flic.kr/p/uWPyZL
https://flic.kr/p/veprn2
https://flic.kr/p/vc6wYw
https://flic.kr/p/vc6wTS

 

[vkrules]

Good place to start. But a Low pass filter doesn't clean up a dirty signal it just cuts off any harmonics over 30 mhzs. And it wont fix anything if the problem is just a strong rf field in the shack( cmc for example or antenna to close to the house, etc)

 

[jdobbs2001]

Wow you should not be bleeding in your speakers. I would fix the radio setup. look at attaching a B11 ISO from radiowavz

That is an isolation transformer.

 

[Captain Kilowatt]

Low pass or TVI filters will NOT cure a speaker problem. The problem is NOT harmonics. It is simply RF getting into the speaker amp via the speaker leads acting as an antenna. Clean radios can cause this problem just as well as dirty ones. The issue is not with the radio but rather with the poor quality of the speakers. Wind several turns of speaker wire thru a toroid as close to the amp as you can. that may help. RFI to computer speakers is VERY common and sometimes it takes a little know-how to fix the issue such as soldering a 0.001 microfarad capacitor across the speaker leads INSIDE the amplifier enclosure. You may need to do the same thing with the power lead for the amp.

 

[Mustang 131]

Those amplified computer speakers are usually very poorly designed. I had a friend that was delivering a computer to a customer,the speakers were left on and he heard my whole conversation.