The W8IO / WB0DGF Antenna Site. NEC Model Library The following files and links point to NEC/AO/YO models of various Ham antennas that I. Contains information about the popular MMANA-GAL antenna modeling program. Maintains a Library of MMANA-GAL Antenna Files that all MMANA-GAL users should.

WB0DGF Antenna Site - Antenna Modeling Links The Watts8IO / WB0DGF Antenna Web site (30 Walk 2015) NEC Software for Yagi Design Software program / Edition / Author Kind of Yagi Design Insight/Open/Import File Formats Conserve/Export Document Formats Cost edition 5.8.14 Arie Voors -.nec.ez (EZNEC).ant (AO).nec.txt Free of charge edition 5 Roy Lewallen W7EL -.ez (EZNEC).en.ez EZNEC v. 5 ($89) EZNEC+ v.5 ($139) EZNEC Professional/2 v.5 ($500) Demo 2.0.10 Dan Maguire Air conditioning unit6LA -.weq (AutoEZ).ez (EZNEC).nec.ant (AO).inp.maa (MMANA-GAL).weq (AutoEZ).ez (EZNEC) Demonstration - Free full edition - $79 6.2.0 Paul McMahon VK3Drop includes test Yagi fiIes.yc6 (YagiCAD).yág (YagiCAD).yc6 (YágiCAD).nec.nec (4NEC2).txt Free 2.0 Dean Hay N6BV -.yw (Yagi for Windows).yag (Y0).yw (Yagi fór Home windows) 2.6.10 David Received VK5DJ DL6WU long increase Yagi creation no file transfer.yag (YO).máa (MMANA-GAL) Free 2.0 Kok Chen Watts7AY -.nec?

Free (Mac OS-X edition of NEC) -??? -.nec.nec $39.95 Take note: E6STI's AO and YO software program no more time available. His older variations will not function in Home windows 7 and 8. NEC/MININEC-based Software Vendors:.

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(WB6TPU) Free of charge Software!. Customers Manual for NEC and various other info. (Watts4RNL) 100s of Antenna Articles! Additional RF and Antenna Software. (links updated 18 Feb 2013) Find out How Antennas Function!. set size to 0.5 (half-wavelength dipole) and notice that the impedance is near 73 ohms.

Radiation pattern proven is normal figure-8 design. When a haIf-wave dipole can be close to floor, the impedance can be lowered to near 50 ohms. Hence a perfect match to 50 ohm cable.set size to 1.27 wavelength. This will be called an Prolonged Two times Zepp antenna and generates the optimum gain feasible from a basic center-fed dipole. Notice that the rays level of resistance (impedance) is usually about 90 ohms.

This antenna can end up being coordinated to 50 ohms by making use of a series inductor. Fifty percent of this antenna is definitely 5/8 influx and is usually a common length for 2m cellular antennas. The 5/8 wave antenna is definitely typically fed against a floor aircraft (vehicle roofing) and will be usually combined with a drawn on inductor.established duration of dipole tó multiples of 1/4 influx on each side (e.g. 0.5, 1.5, 2.5, etc.).

Observe how these measures produce an radiation level of resistance (impedance) close to 100 ohms. The styles of these are usually produced up of many lobes (cloverleaf design). How perform antennas generate get?. What is usually dBi? What will be an isotropic radiator?