The FCC has never determined a level that constitutes "harmful interference."
For Amateur Radio, the term is defined essentially as the repeated disruption
of a licensed radio service. If the FCC were to set an actual limit, it would
be higher than we want and, worse, they may require Amateurs to accurately
measure field strength before determining interference to violate the limits.
Ed
________________________________
From: RFI <rfi-bounces+w1rfi=arrl.org@contesting.com> on behalf of Tony
<dxdx@optonline.net>
Sent: Saturday, December 28, 2019 2:55 PM
To: Rfi List <rfi@contesting.com>
Subject: [RFI] FCC Limits on Harmful Interference
On 12/22/2019 6:19 PM, Hare, Ed W1RFI wrote:
> the FCC has sent out many dozens of advisory letters to operators of various
> devices on the basis of harmful interference.
Does anyone know what the FCC limits are on harmful interference caused
by radiated emissions with regard to HF and the amateur radio service?
Is the noise measured at the receiving station or is it measured at
some specified distance from the offending device?
It would be interesting to know if the same FCC standards apply to
commercial and aviation services.
Tony -K2MO
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