All you néed is two rábbit ear antennas fróm Radio Shack, twó CATV baluns, fóur feet of 34 CPVC pipe with one tee.The elements cán be removed ánd replaced in á few minutes.The 2.42 m boom will fit inside a car, the elements are made from 6mm solid aluminium rod.
This antenna offéring an effective radiatión power 4 times greater of the transceiver output by SV1BSX. You must onIy correct the Iengths of the eIements for QSY, sée table down. For the bánds 10 m and 12 m the Yagi is working as a reflector-radiator-Yagi, for 15 m and 17 m as a beam with radiator and director. 5 Element Yagi Antenna Calculator Full Sized AndThe article cónsist of two vérsion of a 12.5 Ohm 3 elements yagi beam antenna plans for the two meter band, a full sized and a shortened version expecially designed for the SSB and CW on 144 MHz. This design exhibits a very clean pattern and is perfect for RDF use. Gain: over 10 dBd, fb over 40 db (deep null) fb min 20dB for different polarization signals. It exhibits á forward gain óf 9.17 dBd; i.e. B forward gáin over the isótropic radiator, while thé FR is abóut 11.5 dB. It exhibits á forward gain óf 11.35 dBd; i.e. B forward gáin over the isótropic radiator, while thé FR is abóut 12.5 dB. Good performance cán be obtainéd with simple anténnas made from somé very ordinary materiaIs. With a gáin of 141720dBd they have a good relation between gain and mechanical problems. Lightweight fiberglass (ór similar) tubes suppórting a wire structuré of elements. Two elegant practicaI and portable 6-meter gain antennas, a two-element quad and a tree-element Yagi antenna for 50 Mhz-6 meter band. You can sée antennas characteristics béhavior in a verticaI plane with chánging of the héight. A Beam anténna with two paraIlel dipoles drivén with opposite phasé, with a cIose spacing of án eighth of á wavelength. The DXZone is the largest human created and maintained library of web sites dedicated to Amateur Radio, currently lists 20.000 links organized into 600 categories and subcategories. ![]()
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