<s>
The	O
amateur	B-Algorithm
radio	I-Algorithm
band	I-Algorithm
is	O
between	O
2300MHz	O
and	O
2450MHz	O
,	O
and	O
thereby	O
inside	O
the	O
S-band	O
.	O
</s>
<s>
Above	O
2400MHz	O
the	O
band	O
overlaps	O
with	O
the	O
2.4GHz	B-Algorithm
ISM	O
(	O
industrial	B-Algorithm
,	I-Algorithm
scientific	I-Algorithm
,	I-Algorithm
and	I-Algorithm
medical	I-Algorithm
)	O
band	O
,	O
and	O
amateur	O
stations	O
must	O
accept	O
harmful	O
interference	O
caused	O
by	O
ISM	O
equipment	O
operating	O
in	O
the	O
band	O
,	O
such	O
as	O
microwave	O
ovens	O
.	O
</s>
<s>
The	O
ISM	B-Algorithm
band	I-Algorithm
is	O
also	O
used	O
by	O
unlicensed	O
devices	O
,	O
such	O
as	O
Wi-Fi	O
and	O
Bluetooth	B-Protocol
,	O
which	O
must	O
not	O
cause	O
interference	O
to	O
amateur	O
stations	O
.	O
</s>
<s>
2.400	O
–	O
2.485GHz	O
:	O
Spread	O
Spectrum	O
band	O
for	O
general	O
radio-controlled	O
aircraft	O
recreational	O
use	O
(	O
amateur	O
radio	O
license	O
holders	O
have	O
2.39	O
–	O
2.45GHz	O
licensed	O
for	O
their	O
general	O
use	O
in	O
the	O
USA	O
)	O
and	O
using	O
both	O
frequency-hopping	B-Protocol
spread	I-Protocol
spectrum	I-Protocol
and	O
direct-sequence	B-Device
spread	I-Device
spectrum	I-Device
RF	O
technology	O
to	O
maximize	O
the	O
number	O
of	O
available	O
frequencies	O
on	O
this	O
band	O
,	O
especially	O
at	O
organized	O
events	O
in	O
North	O
America	O
.	O
</s>
<s>
As	O
in	O
the	O
rest	O
of	O
the	O
world	O
,	O
US	O
stations	O
in	O
the	O
amateur	O
service	O
are	O
not	O
protected	O
from	O
interference	O
caused	O
by	O
industrial	B-Algorithm
,	I-Algorithm
scientific	I-Algorithm
,	I-Algorithm
and	I-Algorithm
medical	I-Algorithm
equipment	O
.	O
</s>
<s>
The	O
bandplan	B-Algorithm
published	O
by	O
the	O
American	O
Radio	O
Relay	O
League	O
recommends	O
frequencies	O
based	O
on	O
intended	O
activity	O
in	O
the	O
band	O
.	O
</s>
