Re: [Elecraft] Elecraft Digest, Vol 173, Issue 24

73 Alan > On 27 Sep 2018, at 18:43, elecraft-requ...@mailman.qth.net wrote: > > Send Elecraft mailing list submissions to >elecraft@mailman.qth.net > > To subscribe or unsubscribe via the World Wide Web, visit >http://mailman.qth.net/mailman/listinfo/elecraft > or, via email, send a

Re: [Elecraft] Elecraft Digest, Vol 168, Issue 30: current flow on copper strips

My thinking is the current density is uniform in the outer surface of a round tube falling according to skin depth at that frequency. At higher frequencies there is no current on the inner surface so whether they touch when squashed is immaterial, no current there anyway. What is relevant is

[Elecraft] Antenna tuning or matching unit

This all depends on what is meant by antenna tuning. When teaching newbies the wrong phrase can cause problems that are not seen till later. Antennas are tuned with wire cutters or a hacksaw so the feed impedance is the desired value, ideally 50 ohm resistive or at least a match for the feeder