[linux-audio-user] Radio Interference problems when recording

[Tim Howard]

On 11/1/06, jmacdermott at dopd.com <jmacdermott at dopd.com> wrote:
> This basic setup (different computer and distro, same sound card, cables, mics,
> etc.) was working fine at the old place in the basement.  But now when I plug
> my mics (ie: Shure SM58) via XLR into the panel, I hear a LOT of radio
> interference.  I never used to get any of this.
>
> My first thought is that the location (way up in the air) is what is causing it.
>  I already tried the cheapest/quickest/easiest fix, new cables.  That made no
> change.
>
> I will try plugging the unit into another outlet and see if that helps.  I have
> the following questions for the more experienced readers on the list:
>
> 1) Could it be my beat-up old board?  Does a newer, better board (ie: modern
> Mackie, etc.) have fewer problems with RF?  (I know it would be quieter!)
>
> 2) I'm afraid that the RF might be coming through the power lines.  Any tips on
> eliminating this?
>
> 3) Is the location of my equipment (3rd storey attic) an issue?  Any way around
> this without shielding the entire roof?  :-P
>
> Thanks for any help!  Jay
>

Are you hearing radio stations, 60 Hz hum, static, or what?
Are you near florescent lighting? (like in the floor under your feet...)

-TimH