Topband: 4-square phasing

DAVID CUTHBERT DAVIDNNAN at MSN.COM
Mon Dec 13 23:28:28 EST 2004


Ron,

if I have it figured correctly the 3/4 wavelength lines will cause the two extra elements to lag by 180 degrees. You can fix this by doing one of these:

1) adding 180 degrees of line to the two existing element feedlines
2) adding 180 degrees of line to the two 270 deg lines to have 450 deg lines
3) invert the phase of the two 270 deg lines with a choke balun (hot to shield/shield to hot)

    Dave WX7G


More information about the Topband mailing list