Hi Claudio,

>Hi Jim,
>>
>>See http://www.sss-mag.com/emc.html for more on this problem. There are standards for this testing - not very cheap, however. All electronic equipment is susceptible. You have stumbled on one of the least expensive tests :-)
>>
>>>If this is something that can happen, is there a good way to test for these types of problems.
>
>The software (at this site) it is for electromagnetic interference only..
>
>Is not Kenneth's problem based in some interference of waves radio?

Yes, it is. I wasn't recommending the software as a solution, only pointing to links for an education in EMI/EMC in general. In fact, I never looked at what that software does...

>Is it the same ? I'm asking you because I saw that you work in a company of eletronics..
>

Radio waves ARE electromagnetic by nature. Whether Kenneth's problems were caused by the radio waves directly affecting the data on disk (doubtful, disks are fairly well shielded) or by upsetting circuit functions (likely) is what this testing is all about. Strong enough EM fields can in fact cause physical damage to circuitry. Try a look at http://www.fas.org/nuke/intro/nuke/emp.htm and you'll see the extreme end of things. The standards for testing (there are many) establish to what levels a device can exist in a set environment without failure or malfunction. The other side of the testing is to ensure that a device does not emit anything beyond the levels for the standard. Susceptibility and emissions, both radiated and conducted, are common in most standards.