Brandon Martin wrote:
On 1/4/21 10:01 AM, Masataka Ohta wrote:
Any device with speaker should produce audible alert and any
device with display should produce visible alert.
I'm not sure typical North American residential construction could
tolerate the sonic pressure generated by such a "goal"...
It depends on FCC.
Conventional devices like TVs only alert when
on,
In north America, maybe. But, many modern TVs in Japan will be turned
on when they receive emergency earthquake alert over radio waves.
Masataka Ohta
