BTR WAY

THE  SEARCH  FOR  A  BETTER  WAY

I began my search min Mid-February, 2022 - not the best weather for working outside.                     

PLAN-B was devised:  I would use a virtual antenna rather than the actual antenna feedpoint.  I chose the shack-end of the coax running to my 80m OCFD antenna.  Call it: ANT'.


I begin by measuring the "Antenna System" (ANT') in the shack, and recording the data.   


I then investigated other methods of measuring the impedance/SWR of ANT' "remotely" from several meters away.


The goal was to find a method that produced the exact same results as when measuring (manually) with the analyzer at the end of the coax.

(Results shown below.)

I began my search for a better way.  In doing so, I investigated 4 other methods:                                   

  1. Entering the manufacturer's data for the coax, and its length, then subtracting this from the analyzer's measured results.  This proved to be useless, yielding results that were nowhere near those measured with the half wavelength of coax.                                                                           
  2. Calibrating the Antenna Analyzer at the end of a specific length of coax and then measuring.                 
  3. Using an Android Tablet running AntScope-2, connected via BlueTooth to the analyzer.                       
  4. Using an "Active" USB Extension Cable, 15m (abt. 50 ft.) long.  With this I can place the analyzer at the antenna feedpoint and run it from a Windows Laptop using AntScope-2.


Click on the links in methods 2, 3, and 4 to link to the page describing this method and its results.

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