AMSAT members, and LEO satellite antenna builders:
K5OE's article in the January / February 1999 issue of The AMSAT Journal shows RG-62/U used in the construction of the 'Texas Potato Masher' antenna for LEO satellites.
Article can be found here: http://members.aol.com/k5oe/tpm.htm
RG-62/U was used for many years as the physical media between IBM cluster controllers (3174/3274) and 3270 terminals. So this cable was very common is IBM data centers until past decade as mainframe access has moved from IBM's SNA to open standard LAN technologies. RG-62/U 93 ohm coaxial cable (95% braid coverage) being sold in 100 and 250 foot spools. TOM NURMI 15145 SE 180th STREET WEIRSDALE, FL 32195
eBay item number: 290164663358.
As with all eBay auctions -- make your own determination of seller (I do not know or endorse this eBay auction or seller)
w9gb