To avoid the joint in the middle, I've used the all-copper ladderline, ie not the copper coated steel variety, it's a lot smaller and lighter, I think it is supposed to be 450ohm (correct me if I'm wrong) it's about 10mm wide, light grey. I like the fishing swivel idea attached to the ring in the end of a fishing pole.
Not sure now lossy the ribbon cable is on HF, probably similar to zip cord which goes way back. See nice article on the above in March QST. KR8L shows comparison loss compared to lightweight coax feeders and there's not much in it. David G3UNA > Frank, > > I do not know of a source, but contrary to other posts, the Norcal > doublet used actual computer #26 > IDS wire (not rotator wire). > > Don't get me wrong, the rotator wire will work, but it will not be as > lightweight as one constructed of computer flat cable as the NorCal > doublet was. > > If you want an antenna that will perform just like the NorCal doublet, > use any kind of wire for the radiator, cut to 22 ft. on each side and > feed it with 300 ohm ladder line. I use the #22 teflon wire offered > frequently by N2GO on the QRP reflector for the radiating element, and > use either lengths of the same N2GO wire twisted for the feedline or I > use the 300 ohm ladder line. The teflon insulation is nice because it > does not stick to tree limbs and if tangled is easy to untangle because > of the 'slippery' nature of teflon. The antenna is the same as the > NorCal doublet, but the wire is different. > > 73, > Don W3FPR > > Frank MacDonell wrote: >> Does anyone know where one can purchase the wire for the NorCal >> Doublet Antenna (4 strand computer ribbon wire)? Thanks >> >> >> > ______________________________________________________________ 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
