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Problem with mobile phone interference with one specific bass


Mike
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Hi all.

My number one bass - a Sadowsky 4 - is incredibly sensitive to my iPhone. It seems to be the bass rather than the amp as other basses I use don't react the same way. Whenever an iphone is near, I get a huge buzzing, beeping, those general annoying sounds. It's got to the point where I need to have my phone off or on flight mode whenever I'm playing. I also have to get the band to turn off their phones too. Last night i was playing with a big band (!) which required me being a real pain asking everyone to turn off their phones.

This bass is perfect for me and I don't want to change. It's taken me a long time to get to this bass.

Does anyone else have this problem? What can I do?


Help appreciated!!


Regards,


Mike

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[quote name='Mike' post='901782' date='Jul 22 2010, 12:01 PM']Hi all.

My number one bass - a Sadowsky 4 - is incredibly sensitive to my iPhone. It seems to be the bass rather than the amp as other basses I use don't react the same way. Whenever an iphone is near, I get a huge buzzing, beeping, those general annoying sounds. It's got to the point where I need to have my phone off or on flight mode whenever I'm playing. I also have to get the band to turn off their phones too. Last night i was playing with a big band (!) which required me being a real pain asking everyone to turn off their phones.

This bass is perfect for me and I don't want to change. It's taken me a long time to get to this bass.

Does anyone else have this problem? What can I do?


Help appreciated!!


Regards,


Mike[/quote]

Hmm! I'd expect a sadowsky to be pretty well shielded. It might just be that the pickups are super powerful and as far as I'm aware there isnt much you can do about that :)

Open it up and see if there are any obvious breaks in the screening to the control cavity?

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I don't know of many companies more helpful than Sadowsky so I'd recommend contacting them. Whenever I've rung I it's usually Roger that answers but you could always email them or post on the Sadowsky forum. I'm sure they would have some advice on the issue.

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If it's an iPhone, they're prone to this. Mine does it horrifically, to the extent it is now off in any live or studio performance.

Some people put their iPhone inside a 'makeshift' tin-can holder, seems to do them ok.

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[quote name='Mike' post='901782' date='Jul 22 2010, 12:01 PM']....Last night i was playing with a big band (!) which required me being a real pain asking everyone to turn off their phones.

...[/quote]

I can just imagine this: "*coughs* Excuse me ladies and gentlemen, would you mind turning your phones off; I'm about to play a solo"

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Usually, in my experience, when an instrument starts to pick up extraneous signals, there's usually some sort of earthing issue. The fact that the effect is confined to one single bass might suggest this.

I used to get something like Radio Tokyo (def. Japanese) when I plugged into a Zoom Multi-FX pedal, but didn't when it was removed from the chain. I never discovered why, just moved it on.

G.

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[quote name='TomKent' post='901814' date='Jul 22 2010, 12:44 PM']If it's an iPhone, they're prone to this. Mine does it horrifically, to the extent it is now off in any live or studio performance.

Some people put their iPhone inside a 'makeshift' tin-can holder, seems to do them ok.[/quote]

Or stand with your bass in a large metal dustbin on stage.

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I had a sort of releated problem that worked out nicely
A few years ago, I was in my room in the flat and playing my Precision Lyte through my ashdown mini stack.
Got a text off a mate asking to borrow something. So, put the bass down on the bed and left the phone beside it. Went to look for whatever (book or cd i think) came back in, sat down on the bed and must´ve pressed the music player button on the phone. I dont know why (must be the active pups and preamp, but Misfits songs started coming out of the amp!
Delighted and confused, I put the phone right up to the J pup (tone and trebs up max on the bass and up halfway on the amp) to test it out, and sure enough, loud and clear as a bell-music coming out of the amp!

Messed about with it a bit and bought a dictaphone, recorded some samples (talkey intro stuff from films and documentaries) and now keep it on hand for the electronica stuff- just hit play and push it right up to the rear pup-saved a fortune on a rack sampler/synth :)

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OK, I admit the metal dustbin idea was a bit rubbish.

If it's the more retro looking Sadowsky, how about fitting a Fender style ashtray over the pickup? The early Fender one's were earthed via a small wire into the pickup cavity, would of thought that'd stop any interference coming in from the front.

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My Sadowsky doesn't pick up phones any worse than my others - but the Alembic Epic is probably the most vulnerable. Its got very low output pickups and I guess a pretty powerful gain boost....but also very good (silver paint and ferrite bead?) shielding.

I'd be interested to hear what Sadowsky's response is. I know Alembic are fairly open about it, and offer (expensive?) upgrades for their old electronics.

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Similar thing with car stereos and phones. I did a bit of research about this and it turns out it's to do with the phone company frequency being used - I'm on Voda - can't remember but one of the other carriers is notorious for doing it too...

Edited by Jamesemt
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