[BC] FM Modulators for Satellite Radio

Richard Fry rfry
Mon Jun 26 06:48:35 CDT 2006


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 




More information about the Broadcast mailing list