Difference between revisions of "HF Propagation"
From The RadioReference Wiki
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==Technical== | ==Technical== | ||
* [http://www.arrl.org/the-sun-the-earth-the-ionosphere ARRL - Sun, Earth and the ionosphere] | * [http://www.arrl.org/the-sun-the-earth-the-ionosphere ARRL - Sun, Earth and the ionosphere] | ||
| + | *[https://www.sws.bom.gov.au/ Australian Space Weather Services] | ||
* [http://www.dxlc.com/solar/ DXLC Solar Conditions] | * [http://www.dxlc.com/solar/ DXLC Solar Conditions] | ||
* [http://dx.qsl.net/propagation/index.html DX QSL Net-Propagation] | * [http://dx.qsl.net/propagation/index.html DX QSL Net-Propagation] | ||
| + | *{http://giro.uml.edu/ Global Ionosphere Radio Observoatory] | ||
* [http://www.hfradio.org/propagation.html HFRadio.org Propagation, Space Weather and Sunspot Cycle Resource Center] | * [http://www.hfradio.org/propagation.html HFRadio.org Propagation, Space Weather and Sunspot Cycle Resource Center] | ||
* [https://www.hfunderground.com/propagation/ HF Underground - Propagation Data and Tools] | * [https://www.hfunderground.com/propagation/ HF Underground - Propagation Data and Tools] | ||
| + | *[http://www.spaceweather.org/ International Space Environment Service] | ||
* [http://www.ips.gov.au IPS Radio and Space Services] | * [http://www.ips.gov.au IPS Radio and Space Services] | ||
| + | *[https://stereo.gsfc.nasa.gov/ NASA Stereo Website (Goddard Space Flight Center)] | ||
* [http://www.swpc.noaa.gov/ NOAA Space Weather Prediction Center] | * [http://www.swpc.noaa.gov/ NOAA Space Weather Prediction Center] | ||
** [http://www.swpc.noaa.gov/impacts/hf-radio-communications HF Radio Communications] | ** [http://www.swpc.noaa.gov/impacts/hf-radio-communications HF Radio Communications] | ||
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* [https://sdo.gsfc.nasa.gov/ Solar Dynamics Observatory] | * [https://sdo.gsfc.nasa.gov/ Solar Dynamics Observatory] | ||
* [https://www.solarham.net/ SolarHam] | * [https://www.solarham.net/ SolarHam] | ||
| + | * [https://sohowww.nascom.nasa.gov/ Solar and Heliospheric Observoatory (SOHO] | ||
| + | *[http://sidc.oma.be/ Solar Influences Data Analysis Center] | ||
| + | * [https://solarmonitor.org/ SolarMonitor.org] | ||
* [http://www.spacew.com/ Solar Terrestrial Dispatch] | * [http://www.spacew.com/ Solar Terrestrial Dispatch] | ||
| + | *[https://www.spaceweather.com/ Spaceweather.com] | ||
| + | *[https://www.spaceweather.gc.ca/ SpaceWeather Canada] | ||
* [http://www.spacew.com/www/topband.html Topband Propagation] | * [http://www.spacew.com/www/topband.html Topband Propagation] | ||
| − | * [ | + | *[https://www.tgo.uit.no/ Tromso (Norway) Geophysical Observatory] |
| + | * [https://www.wm7d.net/hamradio/solar/ WM7D Solar Research Page] | ||
* [https://www.qsl.net/w2vtm/grayline.html Working the Grey Line] | * [https://www.qsl.net/w2vtm/grayline.html Working the Grey Line] | ||
| − | * [https:// | + | *[https://www.hfpropagation.com/ Usable HF Frequencies - Amateur Radio] |
[[Category:HF in Media]] | [[Category:HF in Media]] | ||
[[Category:Propagation Links]] | [[Category:Propagation Links]] | ||
Revision as of 16:05, 21 July 2021
Radio and TV signals aren't always limited to traveling line of sight distances. On HF this is commonly caused by refraction (bending) of the signal at the upper layers of the atmosphere known as the ionosphere. On frequencies higher than this, while solar activity plays a role, Earth based weather
events are the most common cause of propagation. These links explore several sites, and software,
that can be used to help predict how a HF signal will propagate. For propagation topics above 30 Mhz,
please see our DXing Above 30 Mhz article.
If you're just getting started in the HF hobby, AE4RV's Propagation Primer is an excellant place to start. Note that you need the most up to date Flash software to view this site.
Links and Online Maps
- Links
- ARRL Propagation pages
- AC6V Propagation Links
- EHam Propagation Links
- HF-Start
- Simon's World Map
- Spaceweather.Com
- Online Maps
- Earth View great for seeing Greyline
- Near-Real-Time MUF Map
- Hourly Propagation Maps via HFPack
- PropNet Communication Circuit Quality Report
Software
- Daylight Clock applet Greyline Display and Clock for the Logitech SqueezeBox series Wifi players.
- Proplab Pro
- VOACap
- VOAProp
- W6ELProp propagation prediction software
Technical
- ARRL - Sun, Earth and the ionosphere
- Australian Space Weather Services
- DXLC Solar Conditions
- DX QSL Net-Propagation
- {http://giro.uml.edu/ Global Ionosphere Radio Observoatory]
- HFRadio.org Propagation, Space Weather and Sunspot Cycle Resource Center
- HF Underground - Propagation Data and Tools
- International Space Environment Service
- IPS Radio and Space Services
- NASA Stereo Website (Goddard Space Flight Center)
- NOAA Space Weather Prediction Center
- Solar Activity and HF Propagation Note: PDF file from QRPARCI
- Solar Dynamics Observatory
- SolarHam
- Solar and Heliospheric Observoatory (SOHO
- Solar Influences Data Analysis Center
- SolarMonitor.org
- Solar Terrestrial Dispatch
- Spaceweather.com
- SpaceWeather Canada
- Topband Propagation
- Tromso (Norway) Geophysical Observatory
- WM7D Solar Research Page
- Working the Grey Line
- Usable HF Frequencies - Amateur Radio