Dual LNB?

Hi
Can any of you knowledgable people out there help. When you have a mirror sub
does that mean that you have a different LNB to if you had a single
subsrcription. I ask because the mirror subscription in the bedroom has just
turned to snow, but the one in the lounge is fine. We have tried using the
lounge box in the bedroom but still get no picture and sky say it could be the
lnb and would we like to pay £65 to find out. We have an unused LNB left from
when we moved house and wondered how difficult or even if we could replace the
one on the roof now with this one or if a different duel LNB is needed

Any help gratefully received

Hi
I bought a quad lnb from ebay last week for £16-95.It was a straight
replacement for the one on the end of the dish.Very straight forward to
change

Mark

"Fros75729" wrote in message
...
Hi
Can any of you knowledgable people out there help. When you have a mirror
sub
does that mean that you have a different LNB to if you had a single
subsrcription. I ask because the mirror subscription in the bedroom has
just
turned to snow, but the one in the lounge is fine. We have tried using
the
lounge box in the bedroom but still get no picture and sky say it could be
the
lnb and would we like to pay £65 to find out. We have an unused LNB left
from
when we moved house and wondered how difficult or even if we could replace
the
one on the roof now with this one or if a different duel LNB is needed

Any help gratefully received