This is
a large
band
used for
maritime
communications
in USB,
with
4125 kHz
being
used as
a
calling/distress
frequency.
(note:
SAR
agencies
are
switching
over to
DCS
distress
signaling
for the
HF and
VHF
marine
bands.
The 4
MHz
marine
band DCS
frequency
is
4207.5
kHz.)
The
United
States
Navy’s
Virginia
Capes
radio
station
can be
heard on
the
frequency
of 4372
kHz
using
the
callsign
“GAINTKILLER”.
