3 Elements Yagi optimized for 2m 146Mhz. The design is very similar to 3 Elements Yagi for 145Mhz for the boom and elements spacing. The only difference is on the cutting of the elements. Check the design for 145Mhz Yagi here. Like most of my design this is an end mount type yagi which is more efficient than a mid mount type yagi as the mounting will not introduce a pattern distortion. Similar materials are used in the construction: Materials list 3 Elements Yagi Antenna Materials List 1″ X 0.5″ Rectangular Aluminum tubing for the boom 3/8″ Aluminum tubing for antenna elements 1cm Outside diameter antenna tubing for elements holder 1pc SO239 connector Pop rivets / Rivet tool #12 AWG Copper wire with insulation (12″for Gamma match) Soldering iron 6pcs Stainless steel nuts and bolts 20mm length 3mm diameter 1, Butterfly nut and 1 bolt 18mm length 3mm diameter Aluminum plate 0.5mm thickness Collapsible tube (shrinkable tubes) Dimensions
Antenna Matching Technique Antenna matching for this yagi is by Gamma Match which is similar to the one I used on my previous build for 3 Elements Yagi Gamma Match or 4 Elements Yagi Gamma Match. Use whatever you like.
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