On August 8, 2005 01:39 pm, Stuart Rohre wrote: > L. B. Cebik, W4RNL, explored the "im balance" of the end fed Zepp antenna, > a half wave with open wire feed where one side of the wire connects to > nothing, and the other to the antenna end element. > > That would seem to be the extreme case of current imbalance but he found > typically, there is only 10 per cent less current in one conductor at the > rig end, than the other. The line seems to divide the power available, > rather than one wire being a true zero current. > > This was done for a floating system, or a closed system, ie dipole in > space, no other ground. That would pretty well approach the floating > system you have used on rock. >
So how would the Elecraft BL1 Balun do with the End-Fed Zepp? Depending on the ground losses, the impedance could be 5000 ohms or so. Would the 4:1 transformation ratio still hold true? What would the efficiency of the balun be? Would 100 watts from a K2/100 cause saturation of the balun core? -- Darrell Bellerive Amateur Radio Stations VA7TO and VE7CLA Grand Forks, British Columbia, Canada _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
