I recently discovered segmented dipoles. They're popular with SOTA activators and I hope to join their ranks later this summer. I'd like to homebrew a segmented dipole but I am confused about something I read. Apparently there is a kind of wire that's basically a braided copper tube sandwiched between insulating material. There's an insulating core running through the center of the braid and a jacket on the outside. Just curious if anyone has ever heard of this? Does it offer any benefits for building wire dipoles? Second question - I'd like to carry some lightweight coax for SOTA. I've used RG8X for island and NPOTA activations. Is there anything lighter that's a good compromise between weight and shielding? I'll be operating mostly 5W - 15W with it. Thanks.