Current sunspot cycle activity, space weather, solar storm. You will not have to run voacap directly, ham cap will use it behind the scenes. Software defined radio sdr refers to the technologies that make these exciting. Tutti i corpi che vibrano nellaria sono sorgenti di onde sonore. Usable hf frequencies page refreshed every 20 minutes use the indicated color red, yellow, green, blue, white, etc. Infine provate rappresentazioni diverse delle onde selezionando o deselezionando i bottoni sotto a destra. Any white bubble indicates no suitable frequency or high absorption. Also contains solar and radio propagation information applicable to ham radio including solar conditions, space conditions, online propagation tool, online sn to sfisfi to sn conversion tool, online auroraauroral activity to latitude conversion tool, and online kindex to signal noise conversion tool.
Saturday, 18 april 2020 is world amateur radio day, this year marking the 95th anniversary of the international amateur radio union iaru. This site has information concerning the softrock software defined radios created and kitted by tony parks kb9yig. Free solarterrestrial data displayed on your web page or site, updated every 3hours. Propfire is a web browser extension that allows users to view hf propagation conditions on their web browser status bar. Propagation forecast category is a curation of 20 web resources on, tropospheric propagation forecast, proppy online hf propagation prediction, band conditions. High frequency and vhf radio propagation data, solar and geomagnetic realtime and historic data, sunspot activity reports, as well as forecasts. Radio caroline nel 1964, primo anno di vita ci sono voluti 53 anni per ottenere una licenza di trasmissione in onde medie. 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. This workinprogress guide should get you well started with the software. A comprehensive propagation resource compiled by tomas hood, editor of the propagation columns of cq, cq vhf, popular communications, and monitoring times magazines. Also contains solar and radio propagation information applicable to ham radio including solar conditions, space conditions, online propagation tool, online sn to sfisfi to sn conversion tool, online auroraauroral activity to latitude conversion tool, and online kindex to signal noise. Sdr radio console software di gestione radio sdr e connessione remota mmsstv software per ricezionetrasmissione sstv analogica. Voacap voice of america coverage analysis program is free professional highfrequency hf propagation prediction software from ntiaits, originally developed for voice of america voa. Per il controllo della temperatura delle singola zona olocale.
Hf propagation radio society of great britain main. This software is even used by the military and other clients around the world. Understanding lf and hf propagation 16page724kb pdf by g3nyk and g0kya propagation of radio waves over northerly paths uppsalaleicester 17page2. High frequency hf propagation models 230 mhz irregular terrain model itm longleyrice 20 mhz 20 ghz if77 wave propagation model gierhartjohnson airground millimeterwave propagation model mpm 1 ghz 1 thz terrain data and extraction routines. Shortwave schedule for hll seoul meteorological radio shortwave schedule for nhk 1 yonezawa shortwave schedule for nhk 1 aizuwakamatsu shortwave schedule for ktwr guam the lords challenge radio schedule ktwr guam friendship radio hour radio schedule nippon no kaze shows on nhk 1 fukuoka. Other interest are photography, computer programming, and design of electronic equipment. Hdsdr former winradhd is an advanced version of winrad, written by alberto di bene i2phd.
My name is cecil bayona, my main hobby is ham radio. Designed for the commercial, government, amateur radio and shortwave listener communities, this software provides a powerful interface for all sdr users. Similarly, transmitters can be built that generate the rf signal digitally, then convert it to analog. Propfire ham radio propagation in firefox hf propagation info on your web browser status bar for ham radio shortwave. Radio propagation along the grey line is very efficient. Vengono ricavate le equazioni costitutive della materia, presentandole come lestensione al caso dei magnetoplasmi della teoria della polarizzazione, che viene usata per i dielettrici ordinari. This software is developed and maintained by the same engineers that keep voacap uptodate. Ham radio operators and other shortwave radio enthusiasts will be able to monitor propagation conditions using this firefox. The areas noted in the forecast have the necessary atmospheric conditions to produce tropospheric bending of vhf, uhf andor microwave radio waves. Hflink hf automatic link establishment hf ale hf network. Solar weather, sunspot activity, geomagnetic, aurora, ionospheric reports via. Hflink is the international resource for ale automatic link establishment high frequency communications, hf digital messaging, emergency disaster relief, interoperative hf communications, hf network, ham radio.
Di seguito alcuni software utili al radioascoltatore. How radio waves propagate in other than straightline paths is a complicated subject, but one that need not be a mystery. Palmprop palmprop is a software for palmos dedicated to the forcast of hf radiowave propagation by f5hla hits. 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. Typical applications are radio listening, ham radio, swl, radio astronomy, ndbhunting and spectrum analysis. Todays technology allows us to build radio receivers that sample radio signals and process them on a pc or an embedded system. In questo video vi spiego le basi della propagazione delle onde elettromagnetiche, argomento necessario alla comprensione del funzionamento degli apparati di radio assistenza come ndb, vor, ils e. Acehf is propagation forecasting and modeling for amateur radio as well as for shortwave radio listening and general hf operation. The grey line is a band around the earth that separates the daylight from darkness.
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