Topic: Radio Noise Through Guitar Amplifier?

So this has happened to me before, but now I have a new pedal (Zvex Fuzz Factory) and when I push the fuzz factory in you can hear the radio through my amp very loud, when I turn the pedal off, you can still here the radio but much lighter. Of course I know that if the signal picks up the radio then a boost-pedal will boost the radio too, but when I tried it at band-rehearsal today (in the drummers basement) I didn't got any radio noises. So I know it's not the pedal or the amps, 'cause I'm having this mostly of the time (only when I push the pedal in it is just louder than normal). Anyone have tricks or something to stop this? I tried the tin foil - trick but it didn't work.... and I'm not going to put my whole amplifier in a metal box tongue

Rick

I don't charge for mistakes. - Joe Bonamassa

Re: Radio Noise Through Guitar Amplifier?

Rick49 wrote:

So this has happened to me before, but now I have a new pedal (Zvex Fuzz Factory) and when I push the fuzz factory in you can hear the radio through my amp very loud, when I turn the pedal off, you can still here the radio but much lighter. Of course I know that if the signal picks up the radio then a boost-pedal will boost the radio too, but when I tried it at band-rehearsal today (in the drummers basement) I didn't got any radio noises. So I know it's not the pedal or the amps, 'cause I'm having this mostly of the time (only when I push the pedal in it is just louder than normal). Anyone have tricks or something to stop this? I tried the tin foil - trick but it didn't work.... and I'm not going to put my whole amplifier in a metal box tongue

Rick

I used to have that happen with my beginner amp & equipment when I first started and when I got my London Fuzz, it also would broadcast christian radio stations for me!  But yeah, it only did it certain places/times.  Only thing I could suggest that worked for me was getting a power conditioner.  I bought a Monster pro2500, it cleaned everything up.  Even before I got it, I had bought a voodoo lab pedal power II and that did wonders.  The power conditioner was the icing on the cake, and it only cost me like $130 after guitar center reluctantly price matched an online computer store's price.  I guess certain pedals will give you problems here and there, and it seems the best and easiest way to combat is to have clean power and good cables.  Worked for me.

Re: Radio Noise Through Guitar Amplifier?

Helrazer is right, and his solution is one that works. What is going on is the cords are acting as aerials and the amp front end is self rectifying the signal and acting as a radio. The reason it is ok in the basement is the signal doesn't get down there. There are small value caps that can bypass the radio frequencies but that involves modding the amp by installing them where the jacks plug in. FM stations usually don't do this, just nearby AM stations.
Rick

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Re: Radio Noise Through Guitar Amplifier?

odds are high that it is the fuzz.  sometimes backing off on the gain a hair or on the volume will solve this problem entirely.

Re: Radio Noise Through Guitar Amplifier?

Luther is the man...haha...have a look at 2.45..interesting.
http://www.youtube.com/watch?v=KWlNAEQLXCc&fmt=18

Re: Radio Noise Through Guitar Amplifier?

Another possiblility is cords.  Cheap one can do it.  Why don't you try going back to where you heard the radio interference and just plug into the amp first at about the volume you think you were playing.  I know you won't get the gain you had but you said you could hear it after you turned the fuzz off.  Try all your pedals into the amp next but only plug one pedal up to the  amp at a time.  See if any one pedal makes a difference.  It might not be isolated to just the amp or just a pedal you might have multiple pedals that are working together to pickup the RF interference.  How many pedals do you use on your board?  What are you using to power the pedals Batteries or ac adaptors?  If your using AC adapters switch to batteries and see if that makes a difference because batteries are self contained power sources you won't have dirty power that could have other RF atractors to contaminate your signal.  Things like neon signs, blow dryers, Radio's, TV's, wall worts for pedals, other amps, floresent lights ets...  Basically you want to try to find a power source that has no other electronic equipment drawing power from the line that your connected to.  I would do all this before spending a lot of cash on a power conditioner or something.  That would be the easy fix but you will be better off isolating where the problem is in your setup so you won't have a problem again with it.

Re: Radio Noise Through Guitar Amplifier?

I had a solid state Fender 65R that caught radio signals when it was bone stock no matter what I did. It drove me nuts! I wound up getting rid of the amp because of it.

Gibson Custom Joe Bonamassa Ltd Signature Les Paul VOS # 31

Re: Radio Noise Through Guitar Amplifier?

I have a similar problem with my Barber Direct Drive (which I LOVE other than this problem) and it's happening whether it's plugged into an AC adapter or with battery power alone.  Most of my cords are $40 or so Planet Waves cords, though sometimes when I use a pedal I have some cheapo short cords I use....it's very frustrating but it only seems to happen with this one pedal that I've noticed, TS9 is fine.

Any thoughts?

CarljMD

Takers get the honey, givers sing the blues

Re: Radio Noise Through Guitar Amplifier?

I used to mod audio PA amps all the time for RF decoupling on ships with high powered RF transmitters. For a high impedance input, two caps ceramic disc of .001 uf on either side of a 100k, 1/4 watt resistor, one side of each cap soldered to ground with the resistor in series with the line input. It should be mounted inside the chassis where the jack wire goes to the first amplification stage. Cut the wire and insert this right there. This is a low pass filter in Pi arrangement which will pass audio but shunt all RF to ground. Works like a charm and costs about $2 max in parts.
Rick

Free download from Vienna! http://mbsy.co/bNLR
Lots of unique videos of Joe http://www.youtube.com/watch?v=cwd5vL8fXTw
Buy Joe's merchandise here. http://www.jbonamassa.com/affiliates/id … hp?id=1381

Re: Radio Noise Through Guitar Amplifier?

AD3THREE wrote:

Another possiblility is cords.  Cheap one can do it.  Why don't you try going back to where you heard the radio interference and just plug into the amp first at about the volume you think you were playing.  I know you won't get the gain you had but you said you could hear it after you turned the fuzz off.  Try all your pedals into the amp next but only plug one pedal up to the  amp at a time.  See if any one pedal makes a difference.  It might not be isolated to just the amp or just a pedal you might have multiple pedals that are working together to pickup the RF interference.  How many pedals do you use on your board?  What are you using to power the pedals Batteries or ac adaptors?  If your using AC adapters switch to batteries and see if that makes a difference because batteries are self contained power sources you won't have dirty power that could have other RF atractors to contaminate your signal.  Things like neon signs, blow dryers, Radio's, TV's, wall worts for pedals, other amps, floresent lights ets...  Basically you want to try to find a power source that has no other electronic equipment drawing power from the line that your connected to.  I would do all this before spending a lot of cash on a power conditioner or something.  That would be the easy fix but you will be better off isolating where the problem is in your setup so you won't have a problem again with it.


Well, the guitar is plugging right into the amp actually, the Fuzz Factory is the only pedal in the effects loop (I don't like it in front of the amp, it sounds too harsh). The Fuzz Factory can't operate with batteries (no place to put in the batteries  tongue ), so I use a Roland 9V DC adaptor. Today I'll stop by my local guitar shop (which fixes pedals, amps and guitars too) and I'll ask them maybe.... I kinda already did what your tips were in your post... but thanks though! Btw, I use a very good Cordial cord!

Rick

I don't charge for mistakes. - Joe Bonamassa

Re: Radio Noise Through Guitar Amplifier?

Rick49 wrote:

the Fuzz Factory is the only pedal in the effects loop (I don't like it in front of the amp, it sounds too harsh).

Rick

Your fuzz pedal is in your effects loop?????  hmm

- Nic from Detroit... posting on JB's Forum since 6-2-2006
Ask me about my handwound Great Lakes Guitar Pickups
Since 2010, Bonamassa fans have taken advantage of my JB friend discount = my cost + shipping. cool

Re: Radio Noise Through Guitar Amplifier?

Ok so your not hitting the front end hard your just driving the Power amp side of it.  I've done this before with boost pedals because I like the amps distortion channel but couldn't get my boost pedals to make things loud so I stuck it in the effects loop and bam instant LOUD.  I wish I had an answer for the noise but maybe its just that boss AC.  I never knew why a pedal maker could charge an arm and a leg and not put a 9 volt battery terminal inside of their pedal or like fuzz faces no ac plug!

Re: Radio Noise Through Guitar Amplifier?

NPB_EST.1979 wrote:
Rick49 wrote:

the Fuzz Factory is the only pedal in the effects loop (I don't like it in front of the amp, it sounds too harsh).

Rick

Your fuzz pedal is in your effects loop?????  hmm

You may think it's stupid to do but it sounds really excellent IMO.

Rick

I don't charge for mistakes. - Joe Bonamassa

Re: Radio Noise Through Guitar Amplifier?

AD3THREE wrote:

Ok so your not hitting the front end hard your just driving the Power amp side of it.  I've done this before with boost pedals because I like the amps distortion channel but couldn't get my boost pedals to make things loud so I stuck it in the effects loop and bam instant LOUD.  I wish I had an answer for the noise but maybe its just that boss AC.  I never knew why a pedal maker could charge an arm and a leg and not put a 9 volt battery terminal inside of their pedal or like fuzz faces no ac plug!


I'll try to search another adaptor.... maybe that will change things... never know if you don't test!

Rick

I don't charge for mistakes. - Joe Bonamassa

Re: Radio Noise Through Guitar Amplifier?

Rick49 wrote:

You may think it's stupid to do but it sounds really excellent IMO.

Rick

I'll have to try it when my JB Fuzz comes in. I just thought that adding distortion or gain/boost pedals in the effects loop was bad for whatever reason.

- Nic from Detroit... posting on JB's Forum since 6-2-2006
Ask me about my handwound Great Lakes Guitar Pickups
Since 2010, Bonamassa fans have taken advantage of my JB friend discount = my cost + shipping. cool

Re: Radio Noise Through Guitar Amplifier?

NPB_EST.1979 wrote:
Rick49 wrote:

You may think it's stupid to do but it sounds really excellent IMO.

Rick

I'll have to try it when my JB Fuzz comes in. I just thought that adding distortion or gain/boost pedals in the effects loop was bad for whatever reason.

I don't know if it is suitable for all distortion/gain/fuzz/boost pedals... the Fuzz Factory is a very unique kinda sound pedal, and it works for me, I don't know if it works for you but let me know!

Rick

I don't charge for mistakes. - Joe Bonamassa