I have a run of TV/DVB-S coax in my house and I think about abusing it for ethernet.
I am aware of the "good"/modern solution (ethernet over coax, fancy modulation an all, something like 270 Mbit/s), but since I don't need the fast data rate and have some 10base2 (thinnet) equipment idling around my house, I have the idea of running 10base2 over the coax segment.
Of course, there will be an impedance mismatch between the 10base2 transceivers (50 Ohms) and the TV coax (75 Ohms). Some energy of the signal will be lost due to reflection (that's why people usually use 10base2 with proper 50 Ohm coax like RG-58). However, I still wonder how my chances are if I try it the redneck way ("There, I fixed it!"). The length of the "wrong" coax is only something like 15...20 m (approx. 50 ft), after all - and the 10base2 standard accepts up to 185 m (606 ft). My hope is that trading a shorter length for the higher/mismatched impedance might make my hack work.
How robust is 10base2? Has anyone some experience about 10base2's tolerance for an impedance mismatch? Has anyone ever tried something like an unterminated run of 10 m of 10base2 - the effect may be similar to what I'm up to...
I know it's all outdated and stuff, but if it does the trick, I would be a happy person!
Note: There is a related question already, but the exact detail I'm curious about is ruled out over there. I'm all in for the major style points, accepting the vintage tech.