Here is a related NOUO involving a station operating at 87.9MHz
Quote from the NOUO:
The field strength of the signal on frequency 87.9 MHz
exceeded the maximum permitted level of 100 microvolts per meter (uV/m)
at 3 meters for non-licensed devices. In addition, fundamental emissions
from intentional radiators operating under Part 15 shall not be located
in the frequency band 76-88 MHz. Thus, this station is operating in
violation of 47 U.S.C. § 301
End of quote.
Link:
http://transition.fcc.gov/eb/FieldNotices/2003/DOC-339394A1.html
Take note that it also says 100 microvolts per meter (uV/m) at 3 meters, not 250 uV/m @ 3 meters like that that is allowed from 88.1 MHz to 107.9 MHz.
Bruce.
Another indication as to why this frequency will never be allocated to Part 15 operators. This is the "guard band" frequency to VHF TV channel 6. VHF TV is NOT going away.