Network question. Use coax for ethernet?

I heard there's a way to use an existing coaxial cable for an ethernet connection? I have my iMac in our converted garage out back of the main house, and the airport/. internet connection inside the main house. I have them communicate wirelessly now and it's fine, but drops out now and then and I wanted to hook it up by wire.
There's a coax cable laid between the two houses, but no room/facility for adding an ethernet cable, easily anyway. I was told you can get adapaters to use the coax for this purpose. I looked around online and there's a variety of things available, from simple adapaters for $10 or $20, to complex boxes that cost a hundred to several hundred. Anybody know if this is possible, and if it is, what kind of adapter I need?

Meetoo wrote:
I heard there's a way to use an existing coaxial cable for an ethernet connection? I have my iMac in our converted garage out back of the main house, and the airport/. internet connection inside the main house. I have them communicate wirelessly now and it's fine, but drops out now and then and I wanted to hook it up by wire.
There's a coax cable laid between the two houses, but no room/facility for adding an ethernet cable, easily anyway. I was told you can get adapaters to use the coax for this purpose. I looked around online and there's a variety of things available, from simple adapaters for $10 or $20, to complex boxes that cost a hundred to several hundred. Anybody know if this is possible, and if it is, what kind of adapter I need?
Coax ("10base2') was the second-generation Ethernet connection technique. (The first was "thicknet"; the third "twisted pair" - "10baseT"). Do a Google search for "10base2".

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