J pole design software

The slim jim, designed by the late fred judd, g2bcx, can be a great portable roll up antenna, if made out of 300. Rf toolbox dipole, yagi, vertical, cubic quad, log periodic, jpole. Jpole is a small software application whose purpose is to help you design jpole antennas using a set of straightforward actions. Rf toolbox is available for both macintosh and windows systems. Post frame estimating software for contractors, lumber yards, draftsmen, material suppliers. News i have been informed by a local ham that the problem with bad j poles is the fault of the builder.

Pole barn design software that features costing, material lists, and svg construction drawings for pole buildings. This page is broken ive assigned my best minions to fix it up kb3kai. The super jpole antennacollinear design below is a javascript for calculating the lengths of tubing to be used for the construction of a super jpole. Calculate the required dimensions for a j pole antenna construction for any given frequency. Listed under the software legacy systemsms dos category that is about ms dos amateur radio programs. I found that the dimensions may vary from supplier to supplier by as much as 18 of an inch. Msdos antenna maker it allows to quickly calculate dimensions for quads antennas, yagi antenna, inverted vees antennas as well as jpoles and traps to. The northern virginia team of ham radio operators and companion hikers manned hawksbill mountain for the 2011 appalachian trail golden packet event. Well, the antennas themselves are pretty simple and reliable and can be installed in a. Jpole is a small software application whose purpose is to help you design j pole antennas using a set of straightforward actions. Buy products related to j pole products and see what customers say about j pole products on free delivery possible on eligible purchases. Its basically an endfed omnidirectional halfwave antenna, matched to the feedline by a quarter wave transmission line stub. This folding j pole antenna is the original design of mike heiler ka0zlg and was featured on the front cover of the march 2005 qst magazine.

The j pole antenna is a popular antenna design among amateur radio operators because it is effective and easy to build. Jpole antennas are usually designed by amateur radio operators because they are simple to build. Design your j pole for hf, 2 meters, 220, 440 and up. Online physics calculator that calculates the long, short section, feed point, spacing dimensions values for current frequency. Jpole antenna is pretty easy to build and usually designed by amateur radio operators. Free online engineering calculator to quickly estimate the geometric size of a jpole antenna.

J pole antenna calculation calculate dimensions for. If the antenna is to be placed outside, do not use brass. On most of the j pole designs out there, a choke should be used as close to the feedpoint of the antenna as possible to help prevent rf on the feedline and creating difficulty with swr readings. After you receive your jpole antenna, the first question you probably have is how are you going to mount it. Yagi, verticals, discone, jpole skyhoppers and parabolic antennas. Antenna, ve3sqb ham radio antenna design software programs. It is used to design jpole antennas for the desired frequency. Magnetic loop designer magnetic loop antenna design software by dk1nb. Use these antenna design software to design and analyze antennas of various types like yagi, jpole, parabolic, quagi, super scanner, etc. This calculator can be used to design a slim jim or a j pole antenna. Jpole is a free and portable antenna design software for windows. Below is a javascript for calculating the lengths of tubing to be used for the construction of a super jpole. Online calculator jpole antenna designer changpuak. Buy your copy online, and get your registration code in minutes.

For 2 meters, the coil is 4 turns of coax at 5 inches in diameter. Antenna calculator and design software electroschematics. An old 1938 us army mil specs recommends choking the coax to prevent. If you want to get technical, a real j pole is feed with 200 to 600 ohms. Gear included a kenwood d710 with green light lab gps, 2m collinear j pole and a 70cm collinear j pole. The jpole antenna is a quick and easy plumbers delight.