Hf propagation prediction tool for amateur radio freeware. Slide 5 spreaders on the wire, using 4 of them, easing them all the way down to the other end. Online interactive maps if you are planning on a dxpedition, consider adding an interactive propagation map to your web site see example. Ladder line antennas, how amateur radio antennas work, eznec software and what it can do for you. Ham radio antennas learn to build a ham radio wire antenna. You will have to click on the ant tab in order to select the appropriate antennas, and verify the antenna patterns.
To help you be in the right place at the right time, propagation prediction programs are available. The weak signal propagation reporter network is a group of amateur radio. Hf terrain analysis hfta is a powerful but easy to use tool but requires a set of data files which describe a series of 2d slices of terrain around a chosen location. Here the ham radio antenna propagation is slightly different. Radio mobile online is a radio wave propagation prediction tool created and maintained by roger coude, ve2dbe, which is dedicated for use by the ham radio community. View antenna display, showing the wires making up the model of the fiveelement beam, with currents and 2d slice superimposed to show orientation. An antenna for ham radio is similar to closing the deal on an automobile purchase. To retrieve your new key, visit the following website to check for your replacement key. The software is open source, and the data collected are available to the public. Low noise antenna connection it doesnt take very much wire to pick up an adequate signal for anything but the crudest shortwave receiver. Its possible, however, to fit a fulllength halfwave dipole in less horizontal space, while retaining most, if not all the advantages of the classic dipole.
Voacap voice of america coverage analysis program is free professional. Such a travel of the wave from transmitter to the ionosphere and from there to the receiver on earth is known as sky wave. But for a ham interested in any aspect of hf operation, digital or otherwise, a basic knowledge of propagation is a most useful tool in the shack. The different types of ham radio software are often dependent on the type of computer operating system used by the radio operator. Ionospheric propagation is the main mode of radio propagation used in the mf and hf portions of the radio spectrum. Review of propagation prediction programs voacapbased. Animated communications effectiveness for high frequency software. The maximum fieldstrength was obtained at the same antenna heading that has. The national oceanic and atmospheric administration space weather prediction center forecasts a solar maximum between 105 and 125, with the peak occurring between november 2024 and march 2026. How to build several easy antennas for amateur radio wikihow. Its possible, however, to fit a fulllength halfwave dipole in less horizontal space, while retaining most, if.
In the arrl antenna handbook, n6bv describes a process for generating. Department of commerce ntiaits institute for telecommunication sciences high frequency propagation models. Operating on the highfrequency hf ham radio bands can be very exciting as conditions change around the world. The ace method shows a sequential series of coverage maps. Using meteor scatter propagation enables ham radio and also commercial radio communications contacts to be made over distances up to about 2000 km on the vhf bands meteor scatter does require the use of high performance ham radio stations and some specialised operating techniques, but it is able to provide interesting contacts over distances up. Predicting propagation in ham radio with voacap online dummies. Acehf professional propagation software for hf radio operators dx toolbox from blackcat systems searches the web for you, gathering information on solar and geomagnetic conditions that affect radio propagation. Acehf professional propagation software for hf radio operators. Maximize your signal and minimize noise with antenna accessories such as antenna switches, vertical addon kits, variable phasing controllers, baluns, radial. Echolinksoftware enabling a link between a radio or repeater to the internet for a licensed radio amateur. The sun, being the largest engine in our solar system, has a great effect on propagation as its exhaust interacts with our earths magnetic field. The online prediction service voacap online is easy.
Integrates with hamcap, ionoprobe, band master, and many 3rd party programs. A brief overview of important propagation fundamentals when using radios. The ham radio hf antenna, of the halfwave dipole variety, requires a lot of horizontal space. Having had a gem quad hf 201510m for a few years, back in the early 80s, i can testify to the quads slight advantages over a tribander yagi with the same number of elements. Voacap is a free professional hf prediction program from ntiaits. A rudimentary knowledge of sunspots, solar flares and mass ejections will help the amateur take advantage of these effects to enhance his pleasure, or understand his plight. Exe for creating voacapcompatible antenna models from hfta, courtesy of r. My favorite ham radio software hamfesters radio club gregory d.
Acehf pro is the most advanced and the most accurate high frequency ionospheric radio signal propagation modeling and forecasting software for amateur radio ham radio and shortwave radio listening swling operators, in the world. Here you will find some easy to understand amateur radio antenna ideas. Ham cap provides a comole automation interface that 3rd party programs can use to start ham cap, set prediction parameters, and run predictions. Dx toolbox from blackcat systems searches the web for you, gathering information on solar. How to use meteor scatter communications in ham radio. Windows program zipped, 830 kb for conversion of online cty. The amateur radio propagation studies webpage features the world of unusual. Antenna theory types of propagation tutorialspoint. Wire antenna construction methods antenna modeling software mininec, winnec, and eznec for windows.
Predicting propagation in ham radio with voacap online. Aug 11, 2019 assembling your antenna, and this where the fun comes into play. Made by the film board of canada for the royal canadian air force. Apr 08, 20 a brief overview of important propagation fundamentals when using radios.
Ham radio deluxe software the radio amateurs best asset. Hf propagation prediction software from ntia its, originally developed for voice of. Ham radio exam is a program to help prepare for one of the fcc amateur radio exams technician, general, or extra. The software can allow the operator to transmit text and images, or even communicate without all of the normally required equipment. Radio signals can be propagated with two major polarizations.
Click on a prefix to find it in the prefix database. May 02, 2020 ham cap is a free hf propagation prediction tool for amateur radio. Dean straw n6bv zipped, 34 kb elevationangle analyzer for voacap, v1. We are pleased to announce the new and latest release of acehf please view this press release. Many are free, such as the hamcap software from alex shovkoplyas ve3nea.
Hrd is designed for windows 2000 or higher xp, vista, also internet explorer 6. In a typical application integrated with ham cap, the user will rightclick on a callsign, and ham cap will pop up and display the pointtopoint propagation chart. What are the different types of ham radio software. Assembling your antenna, and this where the fun comes into play. Some meteor scatter operation takes place on the 50mhz ham radio band. Radio mobile online online rf propagation simulation software. For ham radio most of the communications take place on the two metre band, although there are some contacts made on the 70 centimetres ham radio band, but this is very close to the absolute top limit for this form of radio propagation. If you believe you have a great performing antenna that more than meets your needs and expectations, then you do, and it doesnt matter what some other guy says. Additional material was added for the following topics.
The slice is a set of step distances from the center the chosen location together with the height of terrain at each step. The advantage of the online version over the traditional program that runs on a. Unfortunately, it only runs on pcs, but since the fortran source code is also free, perhaps i can figure out a way to adapt it to the mac. Effective jan 2016 i will be changing web hosting providers and as such a complete redesign of my website using a content management systemcms to better design and host the site. Animated communications effectiveness for high frequency. Has builtin links to the public domain nec2 and voacap engines. Ham cap is a free hf propagation prediction tool for amateur radio. Animated antenna analysis charts, including 3d views.
Ham radio deluxe software radio amateurs best asset. Put contact cement on the tooth picks, or match stems before. Ham cap requests also the date and month, home and target locations, transmitter power, and antenna gain 15 models from the. Ham radio antenna software free download ham radio antenna. The basic concepts behind hf propagation using the ionosphere are easy to understand, and a study of it is not only fascinating, but also very useful for anyone involved in hf radio communications in any way. Acehf propagation prediction software professional pc software for hams that uses voacap and includes area coverage maps animated by time or frequency. Easy to follow paragraphs about antenna db gain, antenna propagation, a wire antenna guide, a small bit of completely biased information about swr and using an antenna tuner. Next, space the spreaders with the wires through the holes at intervals of either 18 or 20 inches 45. Ham radio software was originally developed to allow ham operators to use digital modes of communication. It consists of several layers of charged particles ranging in altitude from 30 250 miles above the surface of the earth. Ham radio propagation software free download ham radio.
For ground wave propagation the polarization should ideally be the same for all stations. Ham radio deluxe hrd is a suite of windows programs providing cat control for commonly used transceivers and receivers. Integrated software for logging, rig control, digital modes, satellite. The difference between a mediocre antenna system and a great antenna system isnt the antenna itself. I used this view to understand my 80m ocf on 40m, 20m, 17m, 12m, and 10m. Radio propagation prediction software electronics notes. While listening or planning to work a dx station, the radio amateur would like to know what are the current propagation conditions, know if the propagation is open toward a specific location at a specific time, or at what time the band will be open for a specific pointtopoint circuit. Heres a great resource for amateur radio operators. Each prefix has a hint with a country and province name. A great deal of technology has converged in the last few years to make the tool of propagation analysis much more readily available to the radio amateur. Emmcap software for modeling of arbitrarily shaped wire structures and the computation of their electromagnetic behavior, including radiation and scattering problems. All stainless hardware end fed dipole 806m portable hf matchbox. Can be interfaced to hfwin32 propagation prediction software.
As indicated on the radio mobile online website, it uses digital terrain information and a mathematical model to simulate radio transmissions between two fixed sites or between a. The dipole antenna can be erected in different ways, in order to obtain different benefits for the radio propagation, or for the given physical and practical conditions. The program allows you to take practice exams or all the questions in a section. Hamcap hf propagation prediction tool for amateur radio. Dbj1 dual band vhfuhf 2 meter70cm ham base antenna. Rosenberg ab9mz presented 20170204 updated 20170312 slide.
Dec 16, 2014 click on the ant tab, select the appropriate antennas, verify the antenna patterns. You can then run multiple eznec test cases while autoez automatically changes one or more. Ace stands for animated communications effectiveness, a. There is broad consensus that solar minimum is ongoing in 2020 or may have already occurred and that cycle 25 will have no major change in the level of solar activity compared to cycle 24.
The sdrplay duo has the same antenna attached to both inputs 100 of 16ga. The current release version of ham radio deluxe is v6. Antenna modeling software and other utility programs by dan maguire, ac6la autoez automated use of eznec. Wsprnet welcome to the weak signal propagation reporter. This view enables detailed 3d analysis of antenna pattern, in the context of the antenna placement, for understanding peaks, nulls, and all aspects of complex far field propagation.
The waves, which are transmitted from the transmitter antenna, are reflected from the ionosphere. Autoez works in conjunction with the eznec antenna modeling program and allows you to use variables to control diverse aspects of the model. It doesnt take much operating experience for a ham to realize that the terrain. Call area boundaries and prefixes are shown on the world map in addition to the dxcc boundaries and prefixes.
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