<s>
DVB-MS	B-Device
is	O
a	O
complementary	O
system	O
for	O
digital	O
television	O
multi-point	O
distribution	O
based	O
on	O
the	O
satellite	O
delivery	O
system	O
DVB-S	O
.	O
For	O
cable	O
delivery	O
system	O
DVB-MC	O
is	O
used	O
which	O
is	O
based	O
on	O
DVB-C	B-Device
.	O
</s>
<s>
The	O
DVB-MS	B-Device
system	O
uses	O
microwave	O
frequencies	O
above	O
to	O
directly	O
distribute	O
television	O
services	O
from	O
a	O
central	O
point	O
to	O
homes	O
of	O
viewers	O
.	O
</s>
