My suggestion would be to
not use coaxial
cable to bring the RF from the
antenna. FIRST, if at all possible, locate
the wireless router/extender that
at the antenna, using as short a coax
Enclose the top-of-the-tower
extender/router in a good weather-tight box to
protect it from the weather, and bring only
the Ethernet signal down to the residence.
a good quality shielded Cat5 cable, but you
lightening protection for the Ethernet
cable, and power cable to the
that is at the antenna. (You may be able
to power the
using power-over-ethernet [POE])
coax length will significantly reduce RF losses
in your system,
and also improve resistance
to signal fading in the long link.
install another wireless router device (connected
to the top-of-the-tower
device by Ethernet cable)
in the residence for wired/wireless connections
computer(s) on the ground (inside and
outside the house).
I'm not familiar with
the radio rules there, but here in the US, I'd recommend
router link to the distant end on
channel 1, and the downstairs wireless router on
(or vice-versa) to reduce RF interference
between the two routers.
Alternately, use 5GHz
for one router, and 2.4 GHz for the other.
I've only provided the basics, but hopefully
that it will be enough for you to get on the right
path. Perhaps I could draw a sketch for you
tomorrow; that is, if you need one.
this thread to monitor for replies.
luck with your project!