Wireman 553 uses a 19 strand Copper Clad Steal (CCS) conductor which results with very thin copper cladding. 553 is skin saturated at about 15 MHz. The loss at 1.8 MHz is approximately 0.21 dB per 100 feet.
http://www.kn5l.net/wm553/ Using EZNEC and SimSmith for the antenna below results with 13.8 dB transmission line loss. Slightly greater loss then Wes' calculations. John KN5L On 01/31/2017 04:12 PM, Wes Stewart wrote: > A 130' dipole, 60' high on 160 has a feed point Z of ~4.5 -j1200. One > hundred > feet of Wireman 553 (typical ladderline) will transform this to ~7.5 +j16 at > the > input. The total loss in this "low-loss" line is over 12 dB. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
