Proppy Hf Propagation, 533-13) provided by the ITU. Most books

Proppy Hf Propagation, 533-13) provided by the ITU. Most books relating to HF propagation give a brief description of grey line propagation, and how and why it works. Software, input data and tutorials for real-time HF propagation prediction Perform on-demand propagation predictions from NCDXF/IARU International Beacon Project beacons using the ITU's ITURHFProp application in accordance with ITU-R P. S. De RSGB heeft sinds enkele dagen een nieuw webtool beschikbaar. signal is at fair-good strength with only slight multipath. Amateur com- munications of up to 50 miles are typically possible via ground wave. A comprehensive propagation resource compiled by … Radio wave propagation links for amateur radio, a curation of 71 useful links about Resources Last week was a good one for HF propagation with a high solar flux index and low Kp index. Whether you're planning a DXpedition, strategizing for a … This Recommendation provides a method for the prediction of available frequencies, of signal levels and of the predicted reliability for both analogue and digital modulated … Issue 200 of Amateur Radio Weekly Issue 200 April 14th, 2018 Top links Proppy: HF propagation prediction An interactive interface used to predict geographical coverage for a given … Propagación HF En la Propagación ionosférica, las ondas de radio de alta frecuencia (HF) se radian hacia la ionosfera donde se reflejan de nuevo hacia la tierra. For use by radio amateurs and radio hams. prop. 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. Cet outil est l'œuvre du programmeur … ITU-R Recommendation P. org/voacap These allow you to specify your own antenna and power and computes propagation to the locations used in the monthly … Perform on-demand area HF propagation predictions using the ITU's ITURHFProp application in accordance with ITU-R P. This will help you plan your HF ham band operations. While prediction tools rely on "global monthly average" ionospheric conditions, this planner makes a … VOACAP (Voice of America Coverage Analysis Program) [1] is a radio propagation model that uses empirical data to predict the point-to-point path loss and coverage of a given transceiver if given as … An interactive map that shows real time, worldwide HF activity and propagation specific to the user's location on all amateur radio HF bands. Predictions are determined in accordance with ITU Recommendation … Proppy HF Circuit Prediction: Space Weather WWV Report: Dec 17, 2025, 3:10:00 PM Previous 24 Hours No space weather storms were observed for the past 24 hours. " This is an HF propagation planning and forecasting tool, similar to … Proppy: An online propagation forecasting tool to play around with Radcom, the Radio Society of Great Britain's magazine, publishes HF propagation information each month. K Index Is a measure of the state of the geomagnetic field. While prediction tools rely on "global monthly average" ionospheric conditions, this planner makes a … DXLook is a real-time HF propagation map built for all HAM radio operators. The link to this resource has been on our site since Sunday Jun 29 2003, and it has been followed … A look at the Proppy propagation prediction tool will help you work out the best times for making a contact with each station and on each band. 7) and PropPy (1. Ground-wave propagation occurs, for example, when you contact another station across town on an hf band. . High frequency and VHF radio propagation data, solar and geomagnetic real-time and historic data, sunspot activity reports, as well as forecasts. AGENDA Intro to Space Weather Effects on Radio Communications Understanding the Numbers Impacts on Propagation Resources for your use Agradecemos a James A. The home of the online HF propagation prediction tool, 'proppy', providing on-demand point-to-point and area predictions using the ITU's ITURHFProp application in accordance … La précision des prédictions dépend de plusieurs facteurs, notamment : Fréquence de fonctionnement: Les prédictions sont généralement plus précises pour les fréquences … US Dept of Commerce book on Ionospheric Propagation - https://www. Predictions are … This blog talks about VOACAP, HF Propagation Prediction and Ionospheric Communications Analysis Software, originally developed for Voice of America. Description This program predicts the most likely operating frequencies and signal levels for high frequency (shortwave) radio propagation paths on specified days of the year and hours of the day. All forecasts are updated daily. asia/proppy/area Current Ham Radio HF Propagation HF propagation status and alerts HF Radio Propagation Search Terms What is ham radio communications? Current HF Band Conditions Online Map Current Ham … Ground-wave propagation occurs, for example, when you contact another station across town on an hf band. However, these can’t account for stations with high-gain antennas or for radio amateurs using more … Proppy Online HF Propagation Prediction Proppy: Online HF propagation predictions using the ITU Recommendation P. As technology continues to evolve, the value of HF … Propagation DX map The solar radiation and space weather affect HF propagation. Hiermee kan de propagatie-verwachting op de kortegolf worden bepaald: rsgb. com Abstract This document describes the use of the poppy (Propagation Python) web application to perform HF Circuit analysis. I It is the … The basic MUFs of the various propagation modes are evaluated in terms of the corresponding ionospheric layer critical frequencies and a factor related to hop length. Doc IRPG. This has been set up in Proppy, web-based service of VoACAP, s ill dubbed “the gold-standard” in propagation software. This web application enable users to predict available frequencies, signal levels and corresponding reliabilities for High Frequency (HF) circuits. Proppy is a simple to use web-based propagation prediction tool which allows users to predict HF propagation conditions, select appropriate HF frequencies for point to point links … Proppy: Online HF propagation predictions using the ITU Recommendation P. ) determines the recommended HF frequencies for contacts from … ONDAS DECAMÉTRICAS con PROPPY Las predicciones de propagación en HF brindan un vistazo rápido a las rutas que pueden estar abiertas en todo el mundo. Ham radio call database for everyone This video is an introduction to the fundamental concepts of HF propagation, with special emphasis placed on skywave propagation and the role of the ionosphe Live HF Propagation Map for Ham Radio Understanding current HF propagation is essential for amateur radio operators looking to make reliable contacts around the world. 8MHz (160m) favour the hours of local darkness; conversely, those from … Similarly, monitoring real-time propagation reports and solar activity forecasts can guide your frequency choices and operating practices. Rodland, KC2G, offers a free application called " HF Propagation Planner. Experimenting with different bands, antenna … INTRODUCTION tion about current and near-future HF propagation conditions at a glance. 533 : Method for the prediction of the performance of HF circuits Ground wave propagation Lower frequency (between 30 and 3,000 kHz) vertically polarized radio waves can travel as surface waves following the contour of the Earth; this is called ground wave … The website titled "Understanding HF Propagation" provides a comprehensive overview of High Frequency (HF) radio wave propagation, covering both practical and theoretical aspects. HF propagation for contesting For intercontinental QSOs, or DX (long distance), the HF bands from 7MHz (40m) down to 1. of Commerce, NOAA, Space Weather Prediction Center # # Geophysical Alert Message # Solar-terrestrial … DX Toolbox - Shortwave / Ham Radio / HF Radio Propagation Black Cat Systems This is a software application that provides a range of tools for HF radio operators, including propagation forecast … A collection of real-time HF propagation tools, tutorials & plates Predictions are performed using the ITURHFProp application (A software method for the prediction of the performance of HF circuits in accordance with Recommendation ITU-R P. Proppy – HF Propagation Prediction [Web Link] QRZCQ – The database for radio hams [Web Link] Sights and Sounds (Digital ID) [Web Link] Signal Identification Guide Wiki [Web Link] Southeastern Radio Repeater Association SERA … HF Propagation Utilities. txt :Issued: 2025 Dec 09 0305 UTC # Prepared by the US Dept. VOACAP Online gives you the power to manipulate time, allowing you to visualize the … Proppy- web based HF Propagation Prediction Tool, for P2P, Area, and Beacons soundbytes. Its modular architecture comprises various … VE3EID Realtime HF Propagation Data of comparison of propagation tools CRPropa (3. 8MHz (160m) favour the hours of local darkness; conversely, those from … HF propagation for contesting For intercontinental QSOs, or DX (long distance), the HF bands from 7MHz (40m) down to 1. Although originally developed on UN*X, the official release of VOACAP is now maintained on Windows (using the … What is VOACAP? VOACAP is a propagation prediction tool Originally used to predict propagation for SW braodcasts Maintained by Jari (OH6BG), Jim (HZ1JW), and Juho (OH8GLV) Stands for Voice of … Perform on-demand area HF propagation predictions using the ITU's ITURHFProp application in accordance with ITU-R P. The lowest two bands in this range share many daytime characteristics with 160 m. HF PROPAGATION DISPLAY AND LINKSUsable HF Frequencies for Amateur Radio Color indicated (red, yellow, green, blue, white, etc. These give an idea as to what bands are … current space weather condition gauges with solar indices taken from the latest wwv report. La densidad entre la troposfera y la … This is a long distance (DX) propagation map for the Signal-to-Noise Ratio (SNR) of 10 meters at a specific time of day (brighter colors show the day time areas - somewhat sinusoidal) based upon your global location (this is a global map). Amateur Ham Radio HF Propagation Tools - Steve Nicols G0KYA by ICQ Amateur / Ham Radio Podcast Publication date 2019-10-20 Topics The home of voacapl and pythonpropVOACAP is considered by many to be the defacto standard HF propagation prediction tool. The global HF score graph below demonstrates fluctuations over time … Hand-made metal Propagation Station. A south-pointing or negative B opens a door through … HF Propagation Prediction Short-Path Propagation from UK High-Frequency (HF) Propagation Prediction software Propquest Spotty - live mapping of PSK Reporter data … VOACAP Online for 11M provides propagation prediction software for high-frequency communication, originally developed for Voice of America (VOA). The home of voacapl and pythonpropVOACAP is considered by many to be the defacto standard HF propagation prediction tool. This MUF map is a useful real-time indicator for HF propagation conditions. asia 1 1 Share Sort by: Best Poppy User Documentation James A. Steve advises some of the tools that can be used to achieve contacts even during … High frequency and VHF radio propagation data, solar and geomagnetic real-time and historic data, sunspot activity reports, as well as forecasts. net is a Web site dedicated to ham radio (amateur radio). The 10m band was open to Brazil in the late afternoon, and this appeared to be F2-layer … Find my Grid! HF Propagation Map with real-time MUF and SNR data for all amateur radio bands. If active, 6m and 2m contacts over long … namens „Proppy“ für monatliche Ausbreitungsvorhersagen online gestellt. HF Operating One of the first things you need to know about operating HF (1. Geliefert werden damit … DXPulse is a real‑time ham radio propagation map that visualizes DX spots from FT8, CW, and SSB. 3) and Proppy (Ref. org/propquest - FoF2 critical frequency and extrapolated MUFs www. Dashboard reporting geolocalised, real-time ionospheric conditions for HF propagation. It serves as … High frequecy and VHF radio propagation data, solar, sunspot, and geomagnetic real-time and historic data, as well as forecasts. 1239-3, 2012). Proppy HF Circuit Prediction Le RSGB vient d'annoncer la mise à disposition d'un nouvel outil de propagation pour les radioamateurs, basé sur le programme ITURHFPROP de l'UIT. Review of Propagation prediction programs - VOACAP-based On HF this is commonly caused by refraction (bending) of the signal at the upper layers of the atmosphere known as the ionosphere. This is an HF propagation planning—forecasting tool, similar to Proppy's Radcom Predictions. eu IOTA Maps - iota-word. Proppy was developed by James Watson M0DNS, and is … This project comprises a python library and complimentary Flask web application, designed to facilitate HF propagation data analysis using the ITUHFProp application. 533-13 Propagation Prediction Application. He also covers how they assist in preparing the … The ICQ Amateur / Ham Radio Podcasts Martin Butler (M1MRB/W9ICQ) discuss propagation with Steve Nicols G0KYA. Proppy Online HF Propagation Prediction Proppy: Online HF propagation predictions using the ITU Recommendation P. Monitor solar flares, CMEs, and propagation forecasts to optimize your amateur radio communications. ) to determine the recommended HF frequencies for contacts from … DX Toolbox - Shortwave / Ham Radio / HF Radio Propagation Black Cat Systems This is a software application that provides a range of tools for HF radio operators, including propagation forecast … Proppy HF Propagation Prediction Previsioni veramente accurate alla portata di tutti e le corrisponden-ti affidabilità per i circuiti in HF. 4). Things can change quickly or just be different in your location … Proppy: HF propagation prediction An interactive interface used to predict geographical coverage for a given site at a specified time and frequency. administration has cut off funding for the Voice of … This is an HF propagation planning and forecasting tool, similar to Proppy's Radcom Predictions. High frequency and VHF radio propagation data, solar, sunspot cycle, and geomagnetic real-time and historic data, as well as forecasts. Watson, HZ1JW, ya que ésta es una versión simplificada de su desarrollo Proppy, el cual ofrece diferentes tipos de gráficos (Area, P2P, MUF, etc) con control sobre todas las … Welcome to the RSGB’s propagation information pages, brought to you by the Propagation Studies Committee This page and the sub-pages associated with it are here to assist in the understanding … RadCom online Propagation Prediction Tools Every month RadCom magazine carries HF propagation predictions to more than 30 locations. You can find it via the RSGB website … By Jari, OH6BG. Understanding HF propagation requires more than just knowing your location; it demands a grasp of time itself. I happened across two on line propagation calculators that can determine what HF bands are best for any time or operating condition. It is open-source (available on GitHub (https://git e run by Matt Smith AF7TI with a map of … This live map of HF propagation may help radio operators to choose the most optimal frequencies and communication routes The tool I use for shortwave propagation calculations - proppy - was very accurate for past transmissions! soundbytes. It is most useful for paths between 250 km and … The ITS Propagation Library (“PropLib”) is a collection of open source software developed by ITS, focused on modeling radio wave propagation under a wide variety of circumstances. A collection of HF propagation tutorials, educational plates and glossaries. gov. net) Proppy HF propagation prediction Sunspot Watch VOACAP Quick … trueI’m a data analyst and so when I first got my General I was Mr Science with all of the forecasts, charts, etc. To comprehend radio communication, it is … RTL-SDR for HF Beacons Propagation Prediction Introduction Fig. Free solar-terrestrial data displayed on your web page or site, updated every 3-hours. For point-to-point monthly median HF propagation predictions to 28 different locations—some including long path—using user-defined mode, power, antennas. GB2RS Propagation News – weekly report and forecast HF Propagation Predictions VOACAP PROPPY area coverage, maps, graphical front end to ITURHFProp Propquest Sporadic E blog from Jim … Search the hfcc database for shortwave broadcasts, perform propagation predictons between the transmitter site and your listening location. 1 Proppy HF Circuit Prediction NCDXF/IARU Beacons (Ref. While prediction tools rely on "monthly average" ionospheric conditions, this planner makes a short-term … PropPy is a novel high-performance software tool to propagate individual charged particles in turbulent magnetic fields via a correlated random walk, while statistically satisfying the particle distribution described by the transport equation. Recently posted - Search Recommendations P. rsgb Search the hfcc database for shortwave broadcasts, perform propagation predictons between the transmitter site and your listening location. On frequencies higher than this, while solar … Steve Nichols, G0KYA is the Chair of the RSGB’s Propagation Studies Committee. rsgb. org/proppy. e. HF amateur radio propagation is a fascinating subject that underscores the vital role of ham radio in emergency situations. 533-14. While prediction tools rely on "global monthly average" ionospheric conditions, this planner makes a … Proppy HF Circuit Prediction: Space Weather Current space weather condition gauges, with solar indices taken from the latest WWV report #hamradio #hamr Software, input data and tutorials for real-time HF propagation prediction This chart from http://www. sws. 533 : HF propagation prediction method ITU-R Recommendation P. txt :Issued: 2025 Dec 17 0010 UTC # Prepared by the US Dept. fr 14frs4455. One thing I quickly found out was that the nifty charts were often wrong. VOACAP is free professional high-frequency (3-30 MHz) propagation prediction software from NTIA / ITS, originally developed for Voice of America (VOA). International Beacon Project Locations and InformationNCDXF/IARU International Beacon Project Tools and Programs for Beacon Listeners Proppy Propagation Prediction Proppy is a simple to use web-based propagation prediction tool which allows users to predict HF propagation conditions, select appropriate HF … Proppy: Predicción de propagación de HF en línea Este nuevo servicio de predicciones de propagación implementado en nuestro sitio web se basa en un acuerdo alcanzado por el RCA con James Watson HF Propagation Prediction (Hamwaves) Ionosfera Ionogramma, MUF (3000)F2, foF2, ftEs Roma (INGV) foF2, hmF2, foEs Roma (NOAA) MUF map (KC2G) Propquest (G3YLA) Tropo map (Hepburn) … Compare regional propagation maps to global conditions charts. forecast) it … Spectral spread and 14 MHz propagation modes Thanks to the following for FST4W spots: Doug Bender (WW6D), the Maritime Radio Historical Society (KPH); Craig McCartney W6DRZ, Globe Wireless … Version 3. This piece features a nautical theme. It visualizes live band conditions using MUF, SNR, and signal paths across the globe. The project "Understanding HF Propagation" provides a detailed overview … Proppy – Another online propagation prediction that helps predict where your signal could be heard on a given band among other features. A comprehensive propagation resource … Radio propagation along the grey line is very efficient. Beyond the horizon and further The theory of HF propagation Prof. A look at the online radio propagation prediction tool Proppy. G0KYA's blog devoting to amateur radio / ham radio, featuring articles on antennas, propagation, marconi and much more. Find the Grid Square for a call sign - levincentral. If you need a short term prediction (i. These charts show the most suitable HF frequency for … Understanding the propagation of the sky waves is essential for radio amateurs who want to improve their communication skills. Also contains solar and radio propagation information applicable to ham radio including solar … Proppy: HF propagation prediction An interactive interface used to predict geographical coverage for a given site at a specified time and frequency. Proppy, which is based on the VOCAP … HF Radio enables long-distance communication across continents and oceans using unique radio wave propagation characteristics, connecting remote areas effectively. au/Images/HF%20Systems/Global%20HF/HAP%20Charts/Seattle. asia/proppy/ – Proppy … Range of HF propagation tools launched There is now a range of online propagation tools available from the RSGB's Propagation Studies Committee, including Proppy for RadCom, VOACAP for RadCom, Predtest and … www. ↗ Between 1965 and 2020, satellite … An interactive map that shows real time, worldwide HF activity and propagation specific to the user's location on all amateur radio HF bands. com Find the CQ and ITU zone for a grid square - zone_check. org - Propagation KC2G propagation website Propagation (qsl. If the IMF points south -- a condition scientists call "southward B " -- z then the IMF can partially cancel Earth's magnetic field at the point of contact. The link to this resource has been on our site since Wednesday Aug 21 2002, and it has been followed 5218 times. The K index is … Dashboard reporting geolocalised, real-time ionospheric conditions for HF propagation. See Acknowledgments. While prediction tools rely on "monthly average" ionospheric conditions, this planner makes a short-term forecast using real-time data. org/proppy and http://www. Although originally developed on UN*X, the official release of VOACAP is now maintained on Windows (using the … Amateur Radio: Usable HF Frequencies (page refreshes every 20 minutes) Use the indicated color (red, yellow, green, blue, white, etc. Some of you have reached out with questions about the future of VOACAP HF propagation predictions, especially following news that the U. bom. This package implements radio propagation models in Python, streamlining the use of data to model and forecast wireless conneciton quality. 533 Implementation. org/g0kya – At-a-glance hourly VOACAP predictions (G0KYA) www. com is made possible by funding from WWROF and data from ionosonde operators around the world, distributed through GIRO. kc2g. predtest. Listed under the Propagation/Resources category that is about Radiowave propagation resources. 00 Add to cart Category: Uncategorized Description The rebirth of skywave HF radio Skywave HF radio usage declined in the 1960s due to ever-changing ionosphere, interference, and bandwidth limits, leading to the rise of satellite technology (since 1957). The title of the main category is Propagation Forecast and it deals mainly with Propagation forecast. What they don’t tell you is the actual frequencies affected, other than a vague idea that … VOACAP HF Charts for RadCom Proppy HF Circuit Prediction: Radcom Predictions PA2P Build your own Space Weather dashboard The Sun, the Earth, and Near Earth Space - Free NASA Textbook … HF Propagation Prediction. This online guide should get you well started with the software. Contribute to ITU-R-Study-Group-3/ITU-R-HF development by creating an account on GitHub. com/real-time-band-conditions/ MUF: https://prop. Yosi Pinhasi My homebrew solid-state transceiver HF Propagation HF Propagation and Solar Data Propagation QRZ Band Conditions: https://qrznow. This is an HF propagation planning and forecasting tool, similar to Proppy's Radcom Predictions. Using prediction software is increasingly easier; … proppy Wireless propagation models for Python. ITU-R Recommendation P. Contribute to G4FKH/proppy development by creating an account on GitHub. I It is the … A wide variety of propagation modes are useful on the HF bands. There are a lot of complex solar weather reporting sites out there. org/predtest - ITURHFPROP-powered predictions (G4FKH) www. The library currently supports C++, . HF Propagation Prediction. Voice of America Coverage Analysis Program (VOACAP) – This is a free professional high-frequency (HF) … Overall, online HF propagation evalutaions can be made using a combination of the above methods to get the most accurate and up-to-date information. This package … All things needed to chop and prop your plants at home! 🤖 AI-Based HF Propagation Analyzer and Simulator An experimental, AI-driven HF radio propagation analyzer built to simulate and visualize communication conditions using advanced modeling and … Special Phenomena Propagation charts may also mention specific propagation modes: VHF Aurora: Enhanced VHF propagation due to ionized particles in the auroral zone. Tutte le previsio-ni vengono eseguite utilizzando l’applicazione … Propagation NOAA STI :Product: Geophysical Alert Message wwv. VOACAP Online … General HF propagation tools For monthly median HF propagation predictions between any two points on the planet allowing full control over input parameters. of Commerce, NOAA, Space Weather Prediction Center # # Geophysical … The title of the main category is Propagation Forecast and it deals mainly with Propagation forecast . rsgb. See http://www. One of the … The bar above represents the global "HF score" in the high bands (17m, 15m, 12m, and 10m), with values ranging from 0 to 100. James, HZ1JW’s Proppy Quick overview of … Determination of ionospheric characteristics related to HF propagation requires knowledge of the prevailing levels of solar activity (ITU-R P. 14frs4455. You might also want to check the live propagation page. uk – Predtest ITURHFPROP predictions soundbytes. A comprehensive propagation resource compiled by Tomas Hood, editor … PropPy is an open-source python software for propagating charged high-energy particles (cosmic rays) in a turbulent magnetic field. Below are the ARRL Propagation Bulletins. Software, input data and tutorials for real-time HF propagation prediction BSDWorld provides insights into HF band propagation worldwide, specifically the transmission conditions between Continents. By combining live data from PSK Reporter, WSPR, RBN, and DX Cluster, it helps radio amateurs track … Steve’s presentation Steve, G0KYA looks at the new tools available like Predtest, Proppy and Propquest and how we can use these. Watson mac. When optimizing HF bands, understanding frequency wavelength and its impact on HF band propagation is … PropPy -- Correlated random walk propagation of cosmic rays in magnetic turbulence Submitted 09 February 2022 • Published 02 June 2022 HF Propagation Predictions with DroidProp For amateur radio operators, understanding HF propagation is essential to making successful long-distance contacts. This is an HF propagation planning— forecasting tool, similar to Proppy's Radcom Predictions. eHam. You can find it via the RSGB website … A look at the Proppy propagation prediction tool will help you work out the best times for making a contact with each station and on each band. The following MUF 3000 km map designed by Andrew, KC2G, shows near real-time HF propagation conditions for a 3000 km path. Es wurde von James, HZ1JW, erstellt und basiert auf einem Programm der ITU. See band conditions and signal paths now. This form of propagation allows two … Stay ahead with real-time solar weather data at SolarCdx. 8 to 30 Mhz) is the current propagation conditions. 1. gif indicates frequencies that allow propagation to various regions, at least that is … Dashboard reporting geolocalised, real-time ionospheric conditions for HF propagation. govinfo. While prediction tools rely on "global monthly average" ionospheric conditions, this planner makes a regional short-term forecast using … propagation prediction/tracking software suggestions I am new to actively tracking propagation patterns but would like to try it out to better predict when to hit certain countries while doing DX. Search the hfcc database for shortwave broadcasts, perform propagation predictons between the transmitter site and your listening location. 0) for cosmic-ray propagation in plasmoids in active galactic nuclei (AGN) jets as well as in the … HF Propagation OverviewSummary: HF propagation is a complex dynamic process influenced by variables such as solar activity, geomagnetic data, frequency, time of day, and antenna properties. The transition between bands primarily useful at … Trans-Equatorial Propagation: This is another form of mysterious radio wave propagation which occurs during the spring and fall months during the sunspot minimum. Proppy Attracting more … This is an HF propagation planning and forecasting tool, similar to Proppy's Radcom Predictions. The free electrons … Make propagation predictions! Understanding HF propagation conditions and predictions are important for your contest strategy to maximize the points. The Sunspot Number (SSN), quantifying of the number of dark spots visible on the … propagation prediction software for ham radio, a curation of 32 useful links about Propagation Propagation The behavior of radio (electromagnetic) waves as they traverse through space is referred to as radio wave propagation or radio propagation. fr This improved service consolidates the best features of our previous platforms, providing a one-stop shop for all your HF propagation needs. 4) In a previous post, I looked at how the RTL-SDR can be used to receive HF stations in the … Abstract This document describes the use of the proppy (PROPagationPYthon) web-application to perform HF Circuit analysis. In this webinar he looks at the new tools available like Predtest, Proppy and www. com/ VOCAP: … It is the ions that give their name to the ionosphere, but it is the much lighter and more freely moving electrons which are important in terms of HF (high frequency) radio propagation. 2 of Proplab-Pro HF Radio Propagation Laboratory (Build 47 – August 2025) $ 99. Use my OpenPGP public key to encrypt messages for: The first version of this web site came on-line on Thursday, December 13, 2001. What can we expect from a HF propagation model ? Some among the many ionospheric effects altering radio waves propagation and that should be taken into account. Radcom has printed predictions, based on … High-Frequency (HF) propagation prediction software is designed to forecast the behavior of radio waves in the HF frequency range (3 MHz to 30 MHz) as they travel through the Earth's ionosphere. The calculation gives a … Current HF NVIS Propagation foF2 Critical Frequency Map Where the above map indicates the foF2 NVIS Critical Frequency, the relationship between the foF2 frequency and the … This document describes the operation of the 'Proppy' web application and the capabilities provided to support on-demand predictions for Point-to-Point (P2P) and Area coverage in addition to monitoring … Discover current solar and atmospheric conditions for ham radio propagation and learn to interpret charts for better HF band communication. com, designed for HF radio enthusiasts. Last update of this index page: Saturday, … Various programs can also be used for HF propagation prediction (Ref. Proppy is a propagation tool available on line that Point-to-Point 24-Hour HF Propagation Planner Andrew D. A comprehensive propagation resource compiled by Tomas Hood, editor of the propagation … The HF Propagation Forecast will help you select the best HF frequency based on the time of day or night, atmospheric conditions, and geographic location. Propagation conditions can vary … Recently posted - Search Recommendations P. NET, … Why simulate HF transmissions ? Scientists want to simulate HF transmissions to better understand the behaviour of the ionosphere and effects of radio propagation on communication circuits that can be … Solar flux correlates will with ionization levels in the ionosphere, so it’s a good indicator of HF propagation conditions. 2), such as VOACAP (Ref. 0. org Proppy HF Propagation Prediction - by M0DNS Japan … Propagation Proppy – HF Propagation Prediction VOACAP – HF (3-30 MHz) point-to-point propagation predictions QSL Info Frank Kossidowski Heribrandstraße 39b 6912 Hoerbranz Austria or via LOTW or eQSL OE9KFV-DJ3FK-K6OE DXCC … Proppy in English/German and other languages --> great Live HF Propagation Tool Propquest - MUF VOACAP Online for Ham Radio Live Ligthning Map Spaceweather Bedeutung der Sonnantivität Sonnen-Information in Deutsch … Propagation NOAA STI :Product: Geophysical Alert Message wwv. Proppy: HF propagation prediction An interactive interface used to predict geographical coverage for a given site at a specified time and frequency. gov/content/pkg/GOVPUB-C13 … PROPAGATION HF Propagation (RadioReference wiki) hfradio. pzdxi seirm ixfeikx gzutq alhit myiwdary opni wzyzn gocdlhz sivkwvh