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The two passive elements act as large capacity hats that are tunable via the SDA 100 controller. This capacity load- ing is very efficient, so the DB42 dipole is only -0.7 dB below a full sized dipole on 80m. The dipole wires connected to the passive elements have no effect whatsoever on the performance of the antenna when using the Yagi on other frequencies, because the wires are connected at the zero current point in the center of each element.
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When installing the truss attachment plate, use the longer bolts included in the 80m dipole kit in place of the stan- dard bolts included with the DB42 hardware as shown in figure XX. The standard length bolts will not be used, remove them from the assembly process.
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Be certain you mount the antenna switch so that the top edge of the saddles are 22-1/4” above the top of the boom. 2112 116TH AVE NE SUITE 1-5, BELLEVUE WA, 98004 WWW.STEPPIR.COM TEL: (425)-453-1910 FAX: (425)-462-4415...
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$% # post. Weather protect connec- tion with coax-seal or equiva- lent
2112 116TH AVE NE SUITE 1-5, BELLEVUE WA, 98004 WWW.STEPPIR.COM TEL: (425)-453-1910 FAX: (425)-462-4415...
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