15 element long range WiFi yagi antenna for 802.11 b/g/n Good DIY project using simple tools and parts. I apologize for the shaky video. I'm an retired person not a videographer. Besides it is hard to record with camera in one hand and cold beverage in the other. Parts/tool list: Approx 1 meter of 14 gauge (1.63mm dia) copper wire Approx 300 mm of RG-8X coax Approx 1 meter of 9.53 mm diameter (3/8 inch) fiberglass rod Metric micrometer or ruler Solder iron and electrical solder Drill bit less than 1.63 mm in diameter Hand drill or drill press John Drew yagi calculator. Compatible on at least Windows XP Home edition http://www.vk5dj.com/yagi.html Martin Merserve folded dipole on-line calculator http://www.k7mem.com/Electronic_Notebook/antenna Coax balun on-line designer http://n-lemma.com/calcs/dipole/balun.htm Coax velocity factor chart http://www.febo.com/reference/cable_data.html Wire diameter chart http://www.bulkwire.com/wiregauge.asp Yagi calculator inputs: Number of directors: 13 Cross-section of boom: 15 mm Boom type: round Construction of directors/reflector shape: round Director/reflector mounting: non-metal boom Diameter of element: 1.63 mm Construction of dipole shape: round Folder dipole mounting: fully insulated Diameter of element: 1.63 mm Yagi calculator outputs: Reflector 59.4 mm long at boom position 30 mm Radiator folded dipole 58.0 mm tip to tip spaced 25 mm from reflector at boom position 55 mm DIRECTORS Dir___Length__Spaced__Boom position (no.)__(mm)___(mm)___(mm) 1_____51.4____9.2____63.8 2_____50.7___22.1____85.9 3_____50.1___26.4___112.3 4_____49.5___30.7___142.9 5_____48.9___34.4___177.3 6_____48.4___36.8___214.1 7_____47.9___38.7___252.8 8_____47.5___40.5___293.3 9_____47.1___42.4___335.7 10____46.7___44.2___379.9 11____46.4___46.0___425.9 12____46.0___47.3___473.2 13____45.7___47.9___521.1

• published: 03 Sep 2013
• views: 4