[Halld-controls] Measuring radiated noise - not

[mark stevens]

Hi Elliott,

The spectrum analyzer with a hand-made antenna is all I have seen used 
here at Jlab.  I did a property search with the terms "emi" and "noise" 
and saw nothing.   I have previously used a portable AM radio, tuned 
between stations, to pick up noise - it is remarkably sensitive (it will 
pick up SCR noise, for example, like that coming from light dimmers or 
switching power supplies).  There are commercial products that are "EMI 
Noise Analyzers", but they are expensive.  Some companies will rent them.

Best Regards,

Mark Stevens

On 4/5/2012 2:08 PM, Elliott Wolin wrote:
> Hi,
>
> Fernands says he currently has no good way to measure radiated noise
> other than jury-rigging something together using a piece of wire and
> some sort of spectrum analyzer.  Does anyone know of real system at JLab
> that can measure radiated noise?
>
>

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