I made an 2m / 70cm tape measure antenna using RG-8 coax. That part was quite a bit of fun and went fine. But when I tried to connect the coax to my Yaesu FT-70DR, the copper core of the RG-8 was too thick to fit into the SMA adapter. How do I connect my antenna to my HT? Thanks in advance!


Either find an adapter that will work or cut the end off the RG-8 and solder on the proper connector.

You could also find an SMA cable and replace the RG-8 entirely.

  • $\begingroup$ Hello Marshall, and welcome to this site! :-) $\endgroup$ – Mike Waters Nov 27 '20 at 19:55
  • $\begingroup$ Thanks, for the suggestion, Marshall. I ended up switch cables to RG-6 and everything worked great. Heard the packet traffic off the ISS beacon first time out of the garage. $\endgroup$ – David Wiley Nov 28 '20 at 14:14

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