This free software is a product of institute for telecommunication sciences. Displays the ncdxfiaru international beacon projects scheduled transmissions and performs propagation predictions for the current month between each beacon and your location using proppy, based on the iturhfprop application a software method for the prediction of the performance of hf circuits in accordance with recommendation itur p. Wind turbine scattering at hf under secretary of defense. Its ideal for the ham radio operator, shortwave listener, or other. Hfwin32 windows all operating systems 32bit versions of icepac voacap rec533 now 6may15 using installmate. Current sunspot cycle activity, space weather, solar storm. Want to know the best band and time of day to contact a certain location or dxpedition. Kb takes into account the solar flux or the smoothed sunspot number and planetary indices. Since dec 1992 the following hf propagation models for windows pcs are available here. This version allows the user to analyze the entire hf spectrum using a single fixed transmitter location and multiply receive locations. Solar storms and why we care the earths magnetic field forms a bubble around our planet called the magnetosphere, which deflects solar wind gusts. This software is even used by the military and other clients around the world.
Hf propagation modeling for positional tx with positional rx sites. The only mf amateur band, 160m, will not be discussed, nor. Listed under the software propagation category that is about propagation tools. Ace hf system simulation and visualization software, v2. Radio propagation prediction software electronics notes. If youre looking for the arrl propagation charts, youll find them by clicking here. Follow the links below to see our available products. Long and shortterm prediction of hf radio propagation research. Describe your experience with the hf propagation prediction software and tell us why you give it the rating you did required. The area prediction data will be superimposed on the dx atlas map, and you will be able to magnify and scroll the map, and view it in the azimuthal and 3d projections. Propagation of rf signals american radio relay league. We are pleased to announce the new and latest release of ace hf please view this press release. Wwv type indices and predicted solar flux, planetary aindex and probability of.
Uk technical feature g0kya the solar wind indicator at. Acehf propagation prediction software ace hf pro, ace hf mobile are. Other useful information would include your experience with similar products, infomation on a product that you would purchase instead of this one, and so on. A solar wind speed of about 380kms and the bz field neutral. The lower the readings, the better hf shortwave propagation conditions are. Solar terrestrial dispatch space weather specialists. This presentation examines hf propagation hf region spans 3 to 30 mhz. For propagation topics above 30 mhz, please see our dxing above 30 mhz article. These links explore several sites, and software, that can be used to help predict how a hf signal will propagate. Radio propagation along the grey line is very efficient. Richard and sue buckner teamedwith joe ahlgren author of geoclock and steve biro to create a dynamic system simulation and visualizationsoftware package which uses the voacap propagation prediction engine to createanimated maps and charts to help all users of hf radio choose the best times and frequenciesfor communications. The maximum usable frequency muf is the highest frequency that, with a probability of 50% of the time, can be used for radio communication between two points at a specified distance but not necessary in all directions via refraction by the ionosphere. At last, recall that in a propagation program like dx toolbox, some of these reports can. Propagation data analysis tool brief instructions shawn charland.
Understanding radio wave propagation can mean the difference between making and missing a contact to a particular part of the world. In 1969, the american institute for telecommunication sciences from the national telecommunications and information administration ntiaits published a technical report 1 dealing with algorithms to use to predict longterm hf propagation conditions. Ace hf pro hf propagation simulation and visualisation software. Ace hf s advantage is that the effects of the days passage may be easily understood. View the news files that detail the changes made for each version of the software. It was the successor to my popular propagation program hfprop, which used a fast, but not very accurate propagation modelling algorithm. It is one of the only software packages to reliably predict ionospherically refracted hf radio signal behavior. Usable hf frequencies page refreshed every 20 minutes use the indicated color red, yellow, green, blue, white, etc. This software is developed and maintained by the same engineers. Exe will detect and remove the w32zotob worm and its variants completely from your system. Jul 24, 2015 this site is dedicated to voacap voice of america coverage analysis program for hf propagation prediction and ionospheric communications analysis, an improved and corrected version of ioncap, retaining all of the theory as put forth by john lloyd, george haydon, donald lucas and larry teters in the 19751985 timeframe with modifications which were suggestedapproved by george lane, donald. The rf propagation research laboratory rfpl ensures that these communications systems are available when needed. If youre just getting started in the hf hobby, ae4rvs propagation primer is an excellant place to start.
The agreement is renewable and provides all active support customers with free bug fixes and new software revisions as they are release. All predictions are performed using the itus iturhfprop application. Unless otherwise stated, all originally authored software on this site is licensed under the terms of gnu gpl version 3. High frequency hf propagation models 230 mhz irregular terrain model itm longleyrice 20 mhz 20 ghz if77 wave propagation model gierhartjohnson airground the u. Looking for online definition of acehf or what acehf stands for. The shortwave frequencies are those in the high frequency hf radio spectrum. One major reason for this is that the d layer, which absorbs hf signals, disappears rapidly on the sunset side of the grey line, and it has not yet built upon the sunrise side.
Acehf pro wincap wizard geoalertextreme wizard dxlab suite propman2000. Hf propagation prediction the tools provided by this web application enable users to predict available frequencies, signal levels and corresponding reliabilities for high frequency hf circuits. Another advantage is ace hf mobile includes a 1 year warranty and support agreement. Demystifying hf radio propagation and modeling check out the ace hf propagation software the latest is version 2. Any white bubble indicates no suitable frequency or high absorption. Hf propagation prediction is a statistical science. Its hf propagation, free its hf propagation software downloads. The software lies within system utilities, more precisely general. Richard and sue buckner teamed with joe ahlgren author of geoclock and steve biro to create a dynamic system simulation and visualization software package which uses the voacap propagation prediction engine to create animated maps and charts to help all users of hf radio choose the best times and frequencies for communications. Institute for telecommunication sciences resources radio propagation software radio propagation software. Acehf propagation prediction software ace hf pro, ace hf mobile are radio frequency rf propagation analysis tools designed for military applications. A realtime hf propagation monitoring tool developed by schwarz and the mdsr team, the rf seismograph shows both band noise and.
This version allows the user to analyze the entire hf spectrum using a single fixed transmitter location. This software by roger coude ve2dbe predicts the performance of vhf and uhf radio systems. Time of day time of year band in use solar flux em radiation geomagnetic conditions. Nw7us amateur radio station in omaha, nebraska tomas. Ece 458 lecture notes on applications of radiowave. Review of propagation prediction programs voacapbased. A myriad of factors affect hf propagation in the radio environment such as timeofday, timeofyear, global location, solar cycle, sunspot activity, and more. Propview propview uses the included ioncap propagation prediction engine to forecast the minimum and maximum useable frequencies between two locations over a specified 24 hour period. Ace hf propagation prediction program all in one aio wd8knc ae4jy software. It displays not only the current status of the hf and vhf bands, but also additional solar and terrestial progatation related data. Ntia does not make any warranty of any kind, express, implied or statutory, including, without limitation, the implied warranty of merchantability, fitness for a particular purpose, noninfringement and data. Includes all of the features offered in ace hf pro. Ace hf propagation prediction software professional pc software for hams that uses voacap and includes area coverage maps animated by time or frequency. Ace hf daylight clock applet greyline display and clock for the logitech.
Additional advanced topics including radiowave scintillations, surfacewave propagation, and the theory of ionospheric incoherent scatter are included as appendices. 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. We will see at the end of last page that since 2010 an online version is available with new functionalities, preventing. Voaprop was written to satisfy my need for a program that would show me what hf band propagation should be like on a particular day on a particular band. Propagation data analysis tool brief instructions youtube. International beacon project locations and information. At this point the k index was 1 and falling, the a index was 3 and the solar flux 66.
Hf propagation prediction programs and how to use them steve nichols g0kya. About acehf pro the resource is currently listed in in a single category. Dx toolbox shortwave ham radio hf radio propagation. These environmental factors produce ionospheric effects. Sdr exploring gnu radio sdr flexradio systems sdr genesisradio sdr software sdr gnu radio user manual. Radio signals are affected by terrain elevation between the sites, and obstructions, including trees, buildings, etc. Amateur com munications of up to 50 miles are typically possible via ground wave. Tarma no longer would support new windows versions. Understanding lf and hf propagation steve nichols of infotech. Tools for setting the system clock, via the internet, are also provided.
The downloads made available through links on this page contain software developed by ntia. Voacap propagation analysis and prediction program i foreword. It can simultaneously calculate several circuits, each using up to five antennas at each end of each circuit, an option asked by contesters using antenna farms on as. Generally, propagation conditions are best when the a index is 15 or lower, and the k index is 3 or lower.
Home planet logsat software macdoppler mac satellite tracking software nlsa tracking software orbitessera mosaic of orbital information. Ace hf is propagation forecasting and modeling for amateur radio as well as for shortwave radio listening and general hf operation. Ace hf stands for animated communications effectiveness for hf radio propagation, a coverage display technique originally developed for u. The ace method shows a sequential series of coverage maps. The notes are intended for an audience familiar with. Alex schwarz, ve7dxw, in british columbia, canada, is exploring the possibility that rf signatures detected by the rf seismograph propagation tool could also be indicating earthquakes, and may even be able to predict them shortly before they occur. Voacap, propagation analysis and prediction program. Hf propagation modeling for stationary tx with positional rx sites. Hf propagation prediction programs and how to use them. Whether any solar radiation storms that might affect hf and shortwave propagation are in progress whether any radio blackouts affecting hf and shortwave propagation are in progess current xray flux readings from the goes10 and goes12 satellites. To produce realistic hf communications, these factors are taken into account in the. This includes the 80, 40, 30, 20, 17, 15, 12, and 10 meter bands.
Dx toolbox from blackcat systems searches the web for you, gathering information on solar and geomagnetic conditions that affect radio propagation. Softwright, a gsa contract holder, is the developer of the terrain analysis package tap pcbased terrestrial rf propagation software. Radio mobile rf propagation simulation software radio. As an amateur radio operator with the callsign of nw7us, i enjoy having twoway communications by way of shortwave radio signals, in the amateur radio hobby. The main category is propagation tools that is about propagation prediction software for ham radio. Ace animated communications effectiveness provides hf ham radio propagation predictions for the 1. Use it to find out who should be able to hear you right now. Irregular terrain model itm longleyrice 20 mhz 20 ghz if77 wave propagation. Check out the ace hf propagation software the latest is version 2. Ace hf professional propagation software for hf radio operators. High levels of solar flux is generally good news for hf propagation in general, the higher the flux number, the better conditions will be for the higher hf bands and even 6m these higher levels need to persist for at least a few days to build up a good average ionization in the f. Make sure you have dx atlas installed, then press the dx atlas button on the settings tab.
Ionospheric propagation is the main mode of radio propagation used in the mf and hf portions of the radio spectrum. Hf propagation is a handy little ad supported windows phone 7 application to inform ham radio operators and short wave listners about the current band conditions. It uses both three dimensional models of the ionosphere as well as three dimensional topographical data of the earth to provide unprecedented detail in modeling hf radio signal propagation worldwide. Tap is used by federal agencies, statelocal public safety departments, energy companies, utilities, and consultants to evaluate radio transmitter sites. Propagation predictions form an essential tool in the management of a hf wanting to work dx stations. Propagation, comparative analysis with ace hf software. Propagation tools and contest validation qrz forums. The rppx software, primary implemented by damboldtsu.
This link is listed in our web site directory since tuesday nov 23 2010, and till today acehf pro has been followed for a total of 1478 times. Its hf propagation software free download its hf propagation. Ace hf pro uses the voacap engine without modification of algorithms thus with the same accuracy and limitations, and can be interfaced with geoclock and a logging software. Ace hf 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. Immediately some smart people, engineers and physicists, extracted the best elements of this. The grey line is a band around the earth that separates the daylight from darkness. Acehf pro hf propagation simulation and visualisation software.
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. Dx atlas software afreet software dx zone software eznec antenna software by w6el g3vfp software downloads ms dos ham radio software norbert pieper javascritp electronic notebook k7mem rt systems radio programming software 4 dsp llc. Pocket sat predict open source prediction satbuster for windows winorbit satellite tracking software. Animated communications effectiveness for high frequency. Acehf professional propagation software for hf radio operators. Acehf propagation prediction software professional pc software for hams that uses voacap and includes area coverage maps animated by time or frequency. On hf this is commonly caused by refraction bending of the signal at the. It also features several propagation forecasting tools. Radio propagation prediction software an overview, article, tutorial about the basics of radio propagation prediction software for use on the hf bands for predicting broadcast coverage, as well as the possibility of establishing two way radio communications, maritime mobile radio communications, and for many more applications. Acehf propagation prediction software resource detail. It uses both three dimensional models of the ionosphere as well as three dimensional topographical data of the earth to provide unprecedented detail in modeling hf radio signal propagation.
Groundwave propagation occurs, for example, when you contact another station across town on an hf band. Acehf pro is the system simulation and visualization software written for ham radio operations and short wave listener operation. How accurate are the n0nbh propagation models qrz forums. Amateur radio in the united states of america enjoys the allocation of many frequencies in a number of bands in the mediumwave, hf, vhf, uhf, and higher radio. Acehf system simulation and visualization software, v2.
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