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GMC Forum _ GEAR & PRODUCTION _ Amp / Floorpod Problem

Posted by: I WILL rock you Nov 30 2007, 08:41 AM

Hi everyone,

I got a 80 W Transistor amp (Peavey 112) and a floorpod (Korg AX1000). When i plug in the floorpod to the amp sometimes (Not always) i hear a radio in the backround, and sometimes its really high volume to! This is very enoying because sometimes its so loud that you have to turn up the volume on the amp so much that my cat gets def :S
I dont hear the radio if im only using the guitar connected to the amp only.
Does this have to do with FM / AM frequency our someting? How can i get rid of it?

Please help me out here i cant take this Russian / Finnish radiospeakers anymore !! laugh.gif

Have a nice Friday and deffinently a GREAT weekend! wink.gif

Posted by: MickeM Nov 30 2007, 09:03 AM

Sorry don't know how to help. This may have to do with your location. Happened to me all the time while we were in one rehearsal room, when we moved to another location (another part of town) it stopped. Perhaps the frequencies were weaker there or something?

But sorry, I have no solution to this.

EDIT: spelling

Posted by: I WILL rock you Nov 30 2007, 10:29 AM

QUOTE (MickeM @ Nov 30 2007, 09:03 AM) *
Sorry don't know how to help. This may have to do with your location. Happened to me all the time while we were in one rehearsal room, when we moved to another location (another part of town) it stopped. Perhaps the frequencies were weaker there or something?

But sorry, I have no solution to this.

EDIT: spelling



Okey well thanks anyways smile.gif

Posted by: VinceG Nov 30 2007, 10:35 AM

Yea, I don't think there is a solution to this problem. I get them all the time but when I plug my amp on my friends basement, it goes away.

Posted by: blindwillie Nov 30 2007, 10:37 AM

There was another, similar, thread about this before. I think it was mattacuk who was blessed with the voices.
Try searching for it, there might be som advice in there.

It might help if you connect all your gear to a grounded socket. Maybe shielded cables can help too. I don't know if there are shielded/unshielded amp/patch cables or if they are all the same.
Or try to move your gear a bit and find a spot where you are free from interference.
Since it's when you plug in the Korg, that suggests that replacing the cabling won't help much, it might be the unit itself but better cables might reduce it.

Posted by: Twibeard Nov 30 2007, 10:39 AM

QUOTE (I WILL rock you @ Nov 30 2007, 10:29 AM) *
Okey well thanks anyways smile.gif

I know this one: If its a guy only talking with the same voise always, then its a Hamradio operator in your area. If its a news/music channel you hear, then it's a Shortwave station transmitting with high power (like 10 Kilowatts) at a very low frequency - probably in your community or close.
You should get some Ferrite-staves or Ferrite-Beads to your 110Volt line (or 220v or what ever in your country). This would normally kill it. The signal is travelling inside your house via the power-nett. Your house power-net unfortunately works as an antenna. Alternatively the signal could come directly via the amp cabels, you could change the type of cabel connect Ferrite-beads on your amp-cable aswel.
You could also contact a local ham-radio group, they will probably help you for free smile.gif they love to solve those kind of problems. biggrin.gif

Understand it: http://www.audiosystemsgroup.com/SAC0305Ferrites.pdf
The theory: http://users.catchnet.com.au/~rjandusimports/tut_9a.html
Some ideas: http://electronics.search.ebay.com/beads_Radios-CB-Ham-Shortwave_W0QQsacatZ1500
Or check the Audioholics site: http://www.audioholics.com/education/cables/bulletproofing-your-system-from-interference

Edit: Links

Posted by: I WILL rock you Nov 30 2007, 02:06 PM

QUOTE (Twibeard @ Nov 30 2007, 10:39 AM) *
I know this one: If its a guy only talking with the same voise always, then its a Hamradio operator in your area. If its a news/music channel you hear, then it's a Shortwave station transmitting with high power (like 10 Kilowatts) at a very low frequency - probably in your community or close.
You should get some Ferrite-staves or Ferrite-Beads to your 110Volt line (or 220v or what ever in your country). This would normally kill it. The signal is travelling inside your house via the power-nett. Your house power-net unfortunately works as an antenna. Alternatively the signal could come directly via the amp cabels, you could change the type of cabel connect Ferrite-beads on your amp-cable aswel.
You could also contact a local ham-radio group, they will probably help you for free smile.gif they love to solve those kind of problems. biggrin.gif

Understand it: http://www.audiosystemsgroup.com/SAC0305Ferrites.pdf
The theory: http://users.catchnet.com.au/~rjandusimports/tut_9a.html
Some ideas: http://electronics.search.ebay.com/beads_Radios-CB-Ham-Shortwave_W0QQsacatZ1500
Or check the Audioholics site: http://www.audioholics.com/education/cables/bulletproofing-your-system-from-interference

Wow! Thanks big time Twibeard, That information was very helpfull to me ! smile.gif



Edit: Links

Posted by: Milenkovic Ivan Dec 1 2007, 01:30 AM

Maybe your guitar is the problem? DId you try some other guitars in your setup?

Posted by: Hardtail Dec 1 2007, 04:01 AM

QUOTE (Twibeard @ Nov 30 2007, 04:39 AM) *
I know this one: If its a guy only talking with the same voise always, then its a Hamradio operator in your area. If its a news/music channel you hear, then it's a Shortwave station transmitting with high power (like 10 Kilowatts) at a very low frequency - probably in your community or close.
You should get some Ferrite-staves or Ferrite-Beads to your 110Volt line (or 220v or what ever in your country). This would normally kill it. The signal is travelling inside your house via the power-nett. Your house power-net unfortunately works as an antenna. Alternatively the signal could come directly via the amp cabels, you could change the type of cabel connect Ferrite-beads on your amp-cable aswel.
You could also contact a local ham-radio group, they will probably help you for free smile.gif they love to solve those kind of problems. biggrin.gif

Understand it: http://www.audiosystemsgroup.com/SAC0305Ferrites.pdf
The theory: http://users.catchnet.com.au/~rjandusimports/tut_9a.html
Some ideas: http://electronics.search.ebay.com/beads_Radios-CB-Ham-Shortwave_W0QQsacatZ1500
Or check the Audioholics site: http://www.audioholics.com/education/cables/bulletproofing-your-system-from-interference

Edit: Links



This is pretty accurate from what I know. I have also heard this on high quality rigs. Shielding is very important as well. Make sure your guitar wiring and guitar cables are up to par.

Hardtail

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