[BC] FM Modulators for Satellite Radio

[Robert Meuser]

Richard:

These are not typical radiating part 15 devices.  Any RF leakage is 
incidental. Conversely, they do a pretty goo job of keeping out external 
signals.

R


Richard Fry wrote:

> Alan Alsobrook:
>
>> The signal leaking back towards the antenna was easily compliant
>> with part 15. I'll have to find my notes on it, but it wouldn't even
>> register on the milliwatt meter, it came up in the micro volt range.
>
> ____________
>
> Just to note that  ~11 nanowatts radiated by a 1/2-wave dipole will 
> produce the legal peak field allowed  for Part 15 FM.  That power 
> level is tough to measure.
>
> The best approach probably would be to measure field strength at 3 
> meters for 250 uV/m, max, to be legal.
>
> RF
>
>
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