[SADXA] 30M question

[Darrel]

 From the FCC Frequency Table, this band is shown as being shared 
internationally - Secondary to the Amateur Service, but Primary to the 
"Fixed Service".
The US footnote 247 is referenced for this band, which states:
"The band 10100 to 10150 kHz is allocated to the fixed service on a 
primary basis outside the United  States and its insular areas. 
Transmissions from stations in the amateur service shall not cause 
harmful interference to this fixed service use and stations in the 
amateur service shall make all necessary adjustments (including 
termination of transmission) if harmful interference is caused."

According to the ITU (= International law), administrations can in 
principle do whatever they like within their own territory provided no 
interference is caused outside their own territory.   I presume that the 
specific 200 watts was chosen by the FCC as a compromise providing a 
reasonable basis for avoiding harmful interference to fixed service use 
outside the USA.

           Cheers,
                    Darrel, aa7fv.

On 5/10/2020 6:21 AM, Bill Mullin wrote:
> I have a question for the low band guru's among us - why is there a 
> 200W limit on this band?
>
> 73, Bill  AA4M
>
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