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Matching system:

I started with a 1/4 wavelength 75 ohm section. It was not enough -


SWR

ch 40 --- 3:0:1

ch   1 --- 2:5:1


So I did some more reading and decided to try 1/12 wavelength coax transformer sections.  The result was this:


ANT-----75ohm----->-----50ohm----->-----75ohm----->-----50ohm-----TX

------(any length) ------ (1/12 wl) -------- (1/12 wl) ------- (feedline)


I can not explain  to you technically why it works, but the resultsspeak for themselves.


This afternoon:


SWR

ch 40 --- 1:7:1

ch   1 --- 1:4:1