••
Interference
is
heavy in the 4
1m
band (7.100-7.300 MHz) be-
cause amateur radio operators and
international stations share this
range.
Time Standard Frequencies
The followi
ng
frequencies announce the exact time
of
day
at
speci-
fied
in
tervals
.
'NINV in Fort Collin
s,
2,
500 kHz
Colorado 5,000 kHz
10,000 kHz
15,000 kHz
20,000 kHz
CHU in Canada 7,335 kHz
VNG in
Australia
4,500
kHz
12,000 kHz
Longwave Band
The
150-540
k
Hz
range is known
as
the longwave band. Most sta-
tions in this range serve
as
beacons for aircraft and marine naviga-
tion by
continuously transmi
tt
ing their call letters. Reception for this
range is best
be
tween 6:00 PM and midnight (your time). Some
shi
ps
also use this range, with 500 k
Hz
set asi
de
as
an
international
distress and emergency station. Most stations in this range use
CW
(Morse code), although some use
AM
voice transmission for weath-
er
broadcasts.
35
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