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Bob you're right, this is the nature of coax, it works based on the condition (balance) of the load at its termination. If the load is perfect and the coax is to specs we get no coax radiation in the form of CMC's. However, if the load is a little off of perfect we will get a little CMC radiation, and if the load is way off we will get a lot of radiation due to CMC's. Same with the integrity of the cable issue.


This pigtail idea I used was just an example of what happens to coax when the physical construction ratio of coax is altered, like I see the cone doing. However, IMO these currents on the cone are not CMC's...they are Antenna Mode currents. Thus I cannot consider the cone to be coaxial. It is just a radiator that does not generate a lot of RF.


But, I have claimed this is all a mute point now...because DB's new 4Nec2 model has shown us the kind of gain that Sirio reports for their NV4K, Donald claims in his real world testing, and we see the model suggesting the gain noted as CMC's.


You asked us what does Barkley mean. What do you think Barkley means or is talking about?


Have you read his thesis, "The Open Sleeve, as a Broadband Antenna?"


Here is the link: http://calhoun.nps.edu/bitstream/handle/10945/24797/opensleevebroadb00bark.pdf?sequence=1