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Topic: RF interference |
Rich Sullivan
From:
Nelson, NH 03457
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Posted 16 Jan 2010 3:58 am |
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| I played a job in a large banquet hall in which all of the lighting was controlled by dimmer switches. I believe this was the source of my problem. I was playing through a tube amp and picking up a radio station loud and clear. I tried moving the amp around the stage, and plugging in to different outlets,but could not solve the problem. Are there any power strips or other devices available that can solve this? |
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Jack Stoner
From:
Kansas City, MO
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Posted 16 Jan 2010 5:38 am
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RFI can have many causes. From coming through the AC power line, being too close to a transmitter site, poor ground shielding in audio cables, poor shielding in pickups, effects, etc.
There is no one solution, you have to find which item is causing it and attack that particular item.
Poor quality guitar cords and cords with molded, not metal shielded plugs is one source. Spring reverb units are another common area of introducing RFI. Tube amps seem to be more susceptable to RFI than solid state.
There are AC power filters ($$$) and conditioners that will help minimize RFI but even those may not completely remove it (if it's coming in on the AC power line).
The Dimmer switches can emit RFI themselves but it's noise. It won't cause a radio station to come through the amp. |
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Tony Prior
From:
Charlotte NC
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Posted 16 Jan 2010 5:59 am
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Humbuckers
_________________
Emmons L-II , Fender Telecasters, B-Benders , Eastman Mandolin ,
Pro Tools 12 on WIN 7 !
jobless- but not homeless- now retired 9 years
CURRENT MUSIC TRACKS AT > https://tprior2241.wixsite.com/website |
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