<s>
The	O
F	B-Protocol
connector	I-Protocol
(	O
also	O
F-type	O
connector	O
)	O
is	O
a	O
coaxial	O
RF	B-Protocol
connector	I-Protocol
commonly	O
used	O
for	O
"	O
over	O
the	O
air	O
"	O
terrestrial	O
television	O
,	O
cable	O
television	O
and	O
universally	O
for	O
satellite	O
television	O
and	O
cable	B-Device
modems	I-Device
,	O
usually	O
with	O
RG-6/U	O
cable	O
or	O
with	O
RG-59/U	O
cable	O
.	O
</s>
<s>
The	O
F	B-Protocol
connector	I-Protocol
was	O
invented	O
by	O
Eric	B-Protocol
E	I-Protocol
.	I-Protocol
Winston	I-Protocol
in	O
the	O
early	O
1950s	O
while	O
working	O
for	O
Jerrold	O
Electronics	O
on	O
their	O
development	O
of	O
cable	O
television	O
.	O
</s>
<s>
The	O
F	B-Protocol
connector	I-Protocol
is	O
an	O
inexpensive	O
,	O
gendered	O
,	O
threaded	O
,	O
compression	O
connector	O
for	O
radio	O
frequency	O
signals	O
.	O
</s>
<s>
It	O
has	O
good	O
75Ω	O
impedance	O
match	O
for	O
frequencies	O
well	O
over	O
1GHz	O
and	O
has	O
usable	O
bandwidth	B-Algorithm
up	O
to	O
several	O
GHz	O
.	O
</s>
<s>
The	O
F	B-Protocol
connector	I-Protocol
is	O
not	O
weatherproof	O
.	O
</s>
<s>
The	O
cable	O
and	O
satellite	O
television	O
entities	O
(	O
as	O
a	O
near	O
standard	O
practice	O
)	O
use	O
compression	O
fittings	O
with	O
F	B-Protocol
connectors	I-Protocol
on	O
customer	O
premises	O
.	O
</s>
<s>
In	O
Europe	O
,	O
block	O
down-converted	O
satellite	O
signals	O
(	O
950	O
–	O
2150MHz	O
)	O
from	O
LNBs	O
and	O
DC	O
power	O
and	O
block	O
signalling	O
from	O
satellite	O
receivers	O
are	O
near	O
exclusively	O
passed	O
through	O
F	B-Protocol
connectors	I-Protocol
.	O
</s>
<s>
Push-on	O
(	O
aka	O
Flex	O
)	O
F	B-Protocol
connectors	I-Protocol
provide	O
poorer	O
shielding	O
against	O
microwave	O
signals	O
of	O
high	O
field	O
strength	O
.	O
</s>
<s>
Nearby	O
television	O
,	O
FM	O
radio	O
,	O
mobile	O
&	O
cordless	O
phones	O
,	O
government	O
radiolocation	B-Algorithm
(	O
54	O
–	O
1,002	O
MHz	O
)	O
transmitters	O
can	O
potentially	O
interfere	O
with	O
a	O
CATV	O
or	O
DTH	O
Satellite	O
reception	O
or	O
operation	O
if	O
the	O
Flex	O
connector	O
is	O
poorly	O
installed	O
.	O
</s>
