[50mhz] HF balun on 6 meters

John Geiger af5cc2 at gmail.com
Sun Apr 17 20:13:11 EDT 2016


I recently added a MFJ 918 balun to my TGM Communications MiniQuad.  The
balun is rated for 3.5 to 30mhz. While changing some things around in the
shack today I ran the miniquad on 6m instead of the 6 meter beam, and it
showed a 1.4:SWR.  That is much better than is rated for the miniquad on
6.  The MFJ 918 is a section of coax with 50 ferrite beads on it.  Could
the good SWR come from excessive loss in the balun on 6m?  What happens if
you do use a balun beyond its rated frequencies?

73 John AF5CC


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