<s>
The	O
waveguide	O
E	B-Algorithm
band	I-Algorithm
is	O
the	O
range	O
of	O
radio	O
frequencies	O
from	O
60GHz	O
to	O
90GHz	O
in	O
the	O
electromagnetic	O
spectrum	O
,	O
corresponding	O
to	O
the	O
recommended	O
frequency	O
band	O
of	O
operation	O
of	O
WR12	O
waveguides	O
.	O
</s>
<s>
The	O
E	B-Algorithm
band	I-Algorithm
is	O
in	O
the	O
EHF	O
range	O
of	O
the	O
radio	B-Algorithm
spectrum	I-Algorithm
.	O
</s>
<s>
The	O
Radio	O
Regulations	O
of	O
the	O
International	O
Telecommunication	O
Union	O
allow	O
amateur	O
radio	O
and	O
amateur	O
satellite	O
operations	O
in	O
the	O
frequency	O
range	O
76.000GHz	O
to	O
81.000GHz	O
,	O
which	O
is	O
known	O
as	O
the	O
4-millimeter	B-Algorithm
band	I-Algorithm
.	O
</s>
