The ARRL in 2012
petitioned
the FCC to carve out the same band for US hams, but the Commission has not yet
acted on the League’s request. The ARRL-sponsored
WD2XSH experimental operation in
that region of the spectrum continues, with Fritz Raab, W1FR, as the
coordinator. Other experimenters also operate there from time to time.
By international agreement, the maximum equivalent isotropically radiated
power (EIRP) of amateur stations using 472-479 kHz may not exceed 5
W (or 1 W EIRP in some locations). In the US and in Canada, the 472-479 kHz band
is part of the larger 435-495 kHz segment allocated on a primary basis to the
Maritime Mobile Service and on a secondary basis for government Aeronautical
Radionavigation.
.
Reply With Quote