It would depend a lot on how the product marketed.  Are the two 
devices sold separately or together?  Are they integrated into a 
single system? If so who is the integrator?

It appears that both products would fall under FCC Part 15 in the US. 
If the two are sold separately in the US, there is no legal 
requirement for one party to effect a fix as both devices operate on 
a sufferance basis, any interference problems would need to be worked 
out amongst the players.

If integrated into a system, the integrator is responsible for the 
system's overall compliance.

If they are in proximity by reason other than integrator's action, it 
seems to me neither party would have liability from an equipment 
authorization point of view as long as each device displayed 
compliance with its respective requirements.  The scenario you 
describe is similar to having a 27 MHz CB portable radio operating 
near a computer - the 27 MHz will couple into the power lines and 
perhaps will result in line conducted emissions that exceed the 
limits, but it's not an equipment authorization issue.

- or so it seems to me.


best regards

Tom Cokenias

T.N. Cokenias Consulting     www.tncokenias.org
P.O. Box 1086
El Granada CA 94018

tel  650 726 1263
fax  650 726 1252


At 8:46 AM +0530 3/13/04, [email protected] wrote:
>Dear Experts,
>         Our device which is an unintentional radiator is to be 
>installed near to an intentionally radiating device. That 
>intentional radiator operates at 13.56 MHz.  The field @ 13.56 MHz 
>emanated by the integral antenna of that intentionally radiating 
>device is getting coupled with the d.c power line of our device. 
>This coupling injects conducted emission noise into the power supply 
>which supplies power to our device. The power supply is a part of a 
>control panel, which draws power from the a.c. mains. Ultimately the 
>noise is getting injected into the a.c. mains.
>         Who is responsibled for this and who should make the 
>preventive measures to overcome this issue? Control panel 
>manufacturer ? The intentional radiator device installer? or we?  
>Sincerely
>
>K.Balasubramanian




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