HyperDic
English
> 1 sense of the expression
radio emission
:
NOUN
phenomenon
radio emission
,
radio wave
,
radio radiation
an
electromagnetic wave
with a
wavelength
between 0.5
cm
to 30,000
m
English
>
radio emission
: 1 sense
> noun 1, phenomenon
Meaning
An
electromagnetic wave
with a
wavelength
between 0.5
cm
to 30,000
m
.
Synonyms
radio wave
,
radio radiation
Part of
radio spectrum
,
radio-frequency spectrum
The
entire
spectrum of
electromagnetic
frequencies
used for
communications
Narrower
carrier wave
,
carrier
A
radio wave
that can be
modulated
in order to
transmit
a signal
ground wave
A
radio wave
propagated
/
propagated
on or
near
the
earth's surface
long wave
A
radio wave
with a
wavelength
longer than a
kilometer
(a
frequency
below 300
kilohertz
)
medium wave
A
radio wave
with a
wavelength
between 100 and 1000
meters
(a
frequency
between 300
kilohertz
and 3000
kilohertz
)
radio signal
A
radio wave
used to
transmit
and receive
messages
short wave
A
radio wave
with a
wavelength
less
than 100
meters
(a
frequency
greater than 3
megahertz
)
sky wave
A
radio wave
that is reflected
back
to earth by the
ionosphere
or a
communications satellite
Broader
electromagnetic radiation
,
electromagnetic wave
,
nonparticulate radiation
Radiation consisting of
waves
of energy
associated
with
electric
and
magnetic fields
resulting from the acceleration of an
electric charge