It was the successor to my popular propagation program hfprop, which used a fast, but not very accurate propagation modelling algorithm. It looks at the sun, sunspots, ionospheric propagation, ionospheric storms and aurora, tropospheric propagation, meteor scatter and space communications, including satellites and earthmoonearth signals. An introduction to the new propagation studies committee propagation predictions tool. The radio society of great britain, working in partnership with the nhs, has launched a campaign called get on the air to care to support the emotional health and wellbeing of 75,000 licensed uk radio amateurs just some of the 3,000,000. Welcome to the rsgbs propagation information pages, brought to you by the propagation studies committee. Acehf professional propagation software for hf radio operators. Radcom tools for pointtopoint monthly median hf propagation predictions to 28 different locations some including long path using userdefined mode, power, antennas. You can definitely see the effects of the current poor solar conditions. This software is even used by the military and other clients around the world. Radio signals are affected by terrain elevation between the sites, and obstructions, including trees, buildings, etc. Radio mobile rf propagation simulation software radio. Rsgb publications radio propagation explained arrl. Qst hf propagation prediction charts muf, best propagation paths and times pdf files from the.
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. Please note that this is not a contest, but some of the rsgb contest committee software and web facilities will be used to collect and display activity reports. This uses a different, but newer, ionospheric model to the voacap engine normally used, but the original iturhfprop software is not very easy to use. The software lies within system utilities, more precisely general. Welcome to the rsgb s propagation information pages, brought to you by the propagation studies committee.
If youre just getting started in the hf hobby, ae4rvs propagation primer is an excellant place to start. 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. Acehf system simulation and visualization software, v2. View the news files that detail the changes made for each version of the software. Io91 using na vhf contest format b serial number is not required c signal report is not required. Partial solar eclipse propagation experiment, march 20th 2015. Also note that any software listed here is downloaded at the readers own risk, and. High frequency hf propagation models 230 mhz irregular terrain model itm longleyrice 20 mhz 20 ghz if77 wave propagation model gierhartjohnson airground the u. 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.
Part 2 will cover hf propagation predictions software on your own computer, which i would only recommend to those. Jan 20, 2020 radio propagation radio propagation is the study of how radio waves travel from a transmitter site to a receiver site through the atmosphere. Animated communications effectiveness for high frequency. Onboard software defines what mode or band is in use at any particular time and this is determined by amateurs at socalled earth stations who control or. On line propagation tools radio society of great britain. The 2meter amateur radio band is a portion of the vhf radio spectrum, comprising frequencies. Commonwealth contest a dx contest and dx means long distance and challenging radio contacts. Running propagation prediction software on mac os x. Propagation for long distance receptioncommunication is better in hours of darkness or near darkness on the lower hf frequencies, take the 80m 3. Every month radcom magazine carries hf propagation predictions to more than 30 locations. Was intermediate adds sporadic e for vhf was intermediate. If youre looking for the arrl propagation charts, youll find them by clicking here.
The aim is to find out if and how the partial solar eclipse will affect propagation on the lower hf bands, particularly 160m, 80m and 40m. The software is also available from the ntia website, although ntia only features older versions. Department of commerce ntiaits institute for telecommunication sciences high frequency propagation models. Since dec 1992 the following hf propagation models for windows pcs are available here. Propagation maps created with hamcap and based on the predicted smooth sunspot number for the month and cw100w to a dipole at 35ft. I write for a number of radio magazines, including the rsgbs radcom and arrls qst. The links below provide information about greyline propagation. Jan 10, 2017 steve, who helps produce the weekly hf content for the rsgbs gb2rs propagation report, says. Looking at hf to vhf, uhf and beyond radio propagation explained provides a practical understanding of radio propagation. 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. Review of propagation prediction programs voacapbased. Propagation prediction programs and forecasts radio society. Describe your experience with the hf propagation prediction software and tell us why you give it the rating you did required. Amateur radio propagation conditions in the united kingdom uk.
It also features several propagation forecasting tools. Steve nichols g0kya, rsgb propagation studies committee relative d layer absorption. For interesting plots of amateur propagation analysis see pages from g3cwi, including scattergrams, chirp soundings, pedersen ray doppler plots. Another form of vhf propagation is called sporadic e propagation. This free software is a product of institute for telecommunication sciences. Demystifying hf radio propagation and modeling check out the acehf propagation software the latest is version 2. The projects aim is to produce a propagation prediction tool that uses the new ituproduced program iturhfprop, which has been shown to be more accurate. Hfwin32 windows all operating systems 32bit versions of icepac voacap rec533 now 6may15 using installmate.
The book also includes information on computerised hf propagation predictions, greyline propagation, low frequency lf propagation, sporadic e, amateur radio. Hf propagation radio society of great britain main. Radio propagation prediction software electronics notes. If you are planning on a dxpedition, consider adding an interactive propagation map to your web site see example. Heavens above satellite and space dx propagation updates. Largely unchanged, but some material on the ionosphere brought down from intermediate. Part 2 will cover hf propagation predictions software on your own computer. Propagation studies committee rsgb by martin harrison g3usf. I am also chairman of the rsgb s propagation studies committee and produce the weekly hf propagation report for gb2rs.
D, e, f1 and f2 layers and their order, and that refraction from the f2 layer is the main mode of long distance hf propagation. Arrl rsgb publications radio propagation explained. The greyline in real time earth view display on world map. Tarma no longer would support new windows versions.
Please note the rsgb is not responsible for the content of external websites. Home forums general forums radio propagation questions. Dx toolbox from blackcat systems searches the web for you, gathering information on solar and geomagnetic conditions that affect radio propagation. The rsgbs propagation studies committee psc has released a new propagation tool for amateurs, based on the itus iturhfprop program.
Institute for telecommunication sciences resources radio propagation software radio propagation software. 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. According to the rsgb amateur radio operating manual, for a daytime path. Understanding lf and hf propagation steve nichols of infotech. Hf propagation t utorial in 1998 bob brown wrote a syllabus about hf propagation for his students that became this tutorial in which bob introduces us in the fascinating world of hf propagation. Based on the powerful enzec antenna modelling software this book seeks to provide a detailed view of. The rsgb hf contest committee may place remotely operated stations in a separate results table.
The rsgb radcom hf propagation predictions prepared by gwyn williams. Ace hf system simulation and visualization software, v2. These links explore several sites, and software, that can be used to help predict how a hf signal will propagate. All predictions are performed using the itus iturhfprop application. I am also chairman of the rsgbs propagation studies committee and produce the weekly hf propagation report for gb2rs. Ace hf is propagation forecasting and modeling for amateur radio as well as for shortwave radio listening and general hf operation. This is where i publish a lot of my features and thoughts on hf propagation, antennas and other ham radio topics. Propagation radio society of great britain main site. Hf propagation predictions part 1 by g3ytu introduction. The downloads made available through links on this page contain software developed by ntia. 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. These are a rough guide and do not take into account longpath openings or sporadic e shortpath openings in mayaugust. Hf propagation prediction programs and how to use them. Acehf is propagation forecasting and modeling for amateur radio as well as for shortwave radio listening and general hf operation.
Acehf propagation prediction software professional pc software for hams that uses voacap and includes area coverage maps animated by time or frequency. Also note that any software listed here is downloaded at the readers own risk, and the rsgb is not responsible for any unwanted effects arising from its use. Hf propagation predictions mid sussex amateur radio society. However, these cant account for stations with highgain antennas or for radio amateurs using more sensitive modes, such as ft8. Usable hf frequencies page refreshed every 20 minutes use the indicated color red, yellow, green, blue, white, etc. Jan 09, 2016 the rsgb propagation studies committee, of which i am the chair, is also working on a new online hf prediction system based on the itu program iturhfprop. Vhf propagation radio society of great britain main. As the charts are produced by voacap it is suggested we use the smoothed sunspot number ssn for the calculations. I write for a number of radio magazines, including the rsgb s radcom and arrls qst. Jul 19, 2016 an introduction to the new propagation studies committee propagation predictions tool radcom readers may be aware of rsgbs new hf propagation prediction project, software and website. This video by the rsgbs propagation studies committee psc looks at sunspots, ionospheric layers, critical frequencies, solar flares and.
Ace hf professional propagation software for hf radio operators. The links below provide information about high frequency propagation. Demystifying hf radio propagation and modeling check out the ace hf propagation software the latest is version 2. Radcom readers may be aware of rsgb s new hf propagation prediction project, software and website the projects aim is to produce a propagation prediction tool that uses the new ituproduced program iturhfprop, which has been shown to be more accurate than older prediction methods. The list below provides links to propagation prediction programs and forecasts.