White papers:
http://docs.commscope.com/Public/Coax101.pdf Although the test frequency and method is not described, this shows the difference between Quad shield and single foil and braid is 7 dB before 10,000 flexes and 13 dB after 10,000 flexes. My measurements of F11 are at: http://www.w8ji.com/coaxial_cable_leakage.htm Those measurements were made in 2007, and repeated in 2011 with no definate change in results. That cable has crimped connectors. Another white paper, which bears out measurements: http://www.westpenn-wpw.com/pdfs/coax_construction.pdf 73 Tom _______________________________________________ UR RST IS ... ... ..9 QSB QSB - hw? BK
