Randy's PC runs off solar panels down in a canyon, off the grid in my neck of Ozark woods. The usual wireless solutions wont work. There is*no* 'line of sight'. Randy's house is in a real nice grove of ancient oak that he most definately does not want to cut to clear; and besides the topo suggests that a bluffline mite be in the way.
But many of us are old enough to remember TV 'ghosting'. I figure I mite be able to bounce a signal off the canyon wall, or pick a frequency low enough to bend around the bluffline.
I've got some 75 foot pines in my yard, and the needle length is long enough, when wet, to ground out any wireless signal over 300 mhz. I can understand engineers being concerned about RFI in urban environments, and wanting lots of channels to chose from, which you get when the frequency is high enough. But we dont have the problem. We've got lotsa dead air to work in.
So- what is the bandwidth of each of the 4 ethernet channels? Has anyone else tried using notch filters or whatever to narrow cast 4 signals between tuned antennas? I can see using pulse emitters & detectors on say, 180mhz carrier wave that would either add to, or clip the peaks, and result in 180meg bits/sec/channel. No IF needed. Without an IF, a tuner wouldnt tune it. 90mbps even if half duplex.
Such a system could result in point to point communications the givernment could not tap. Aint no wire. Dont matter if there's a court order or not. Not that anyone cares what we have to say to each other, or where he surfs.
But in any case, I can see that it mite be necessary to use the com port to set the transmitter frequencies to find out what bands would work best here, and maybe boost the RF output to adapt to weather conditions.