Help with ethernet over TV antenna co-ax
I moved house a couple of months ago and one of the things on my must-have list was a dedicated office space, which my new house has in the converted attic. However the entry point for the cable modem is two floors below in the lounge and the Wifi signal keeps dropping out, scuppering my VPN connection to work.
My other half doesn't want me ripping holes in the wall to route Cat6 cables, and I don't want to spew interference across the EM spectrum with a powerline solution.
However there is a co-axial cable running from the TV antenna in the roof space to a socket next to the cable modem. Is it feasible for both the DTV and another signal to share this cable? Googling a solution returns simple widgets with a co-ax connector and an RJ45 port for £0.25 (plus £10 p+p) or MoCA PoE extenders with a range of several kilometers and not much change out of £500. The most reasonable solution at £50 is this but it seems aimed at IP video cameras and there are no customer reviews.
If anyone has any advice I would be very grateful. Might even buy someone a pint next time El Reg hosts an event in West Yorkshire...