W1TR 4.6 MHz (USAF MARS) Halfwave Sloper

Updated 19-Jun-2006  22:34


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The 60 Meter Halfwave Sloper (dipole) is constructed from #10 stranded insulated wire available in most hardware stores.

The feedpoint uses a T-section of PVC pipe.  The coax loops through the PVC pipe to provide strain relief.  Wires are tied using a square knot to the PVC pipe and also to rope which is then tied to tree trunks after going over the tops of trees.  The antenna slopes to the south to give good directivity towards most of USA and USAF MARS Region One.  The “springiness” of the small branches appears to help the wire antennas survive 60 knot winds with little or no damage.


This antenna works well on the 60 Meter amateur band channels and on some MARS WINMOR frequencies from 4.9 to 5.4 MHz.


Antenna 60 Meter Half Wave Sloper.gif