[time-nuts] gps jamming source found

[Jim Lux]

On 7/5/12 6:33 PM, gary wrote:
> I believe all electronics needs FCC approval for emissions. [Not my job,
> but I know engineers that complain about compliance testing.]
>
> 433MHz is a freeband (ISM). Still, you are supposed to be clean.
>
>

433 is NOT an ISM band in the US (or in region 2, for that matter), but 
it is in Region 1 (EU), so there's lots of parts available.

It is also not an Part 15 band (distinguish from Part 18 ISM)...

27 MHz, 49 MHz, 900 MHz, 2.45 GHz, those are ISM and Part 15 bands...



> On 7/5/2012 4:41 PM, Michael Blazer wrote:
>> A badly tuned/designed super-regenerative receiver can put out a lot of
>> garbage. For commercial products, the receiver needs FCC approval to
>> ensure this doesn't happen.
>>
>> Mike
>
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