I am attempting to make my own extension cables for my PCI wiresess card. I have a removable antenna with the reverse polarity SMA connectors. My question is where can I get the mini coax to make the cable. I have priced the various aftermarket extension that are out there but am concerned with both cost and signal loss should I have to connect more than 1 cable together to reach the desired location. Also, what is the proper name/ industry name for this cable. May I say thank you in advance for any suggestions or help that you can provide.