W2LJ's Blog - QRP - Do More With Less.

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For those of you

Posted: 04 Aug 2016 01:46 PM PDT
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considering building a 9:1 UNUN - a la' the EARCHI ............ here's a
chart showing SWRs vs. various wire lengths.

Personally, I use a 53' radiator with a 25' length of coax between the UNUN
and the rig, to act as a counterpoise. This setup worked very well for us
(SPARC) for Field Day in 2014 and 2015. It has also worked very well for me
in various outdoor QRP Sprints.

YMMV.

72 de Larry W2LJ
QRP - When you care to send the very least!