Amateur Radiostation PA3DWC
Weak Signal Propagation Reporter
WSPR
WSPR (pronounced "whisper") stands for "Weak Signal Propagation Reporter". It is a computer program used for weak-signalradio communication between amateur radio operators. The program was initially written by Joe Taylor, K1JT, but is now open source and is developed by a small team. The program is designed for sending and receiving low-power transmissions to test propagation paths on the MF and HF bands.
WSPR implements a protocol designed for probing potential propagation paths with low-power transmissions. Transmissions carry a station's callsign, Maidenhead grid locator, and transmitter power in dBm. The program can decode signals with S/N as low as -28 dB in a 2500 Hz bandwidth. Stations with internet access can automatically upload their reception reports to a central database called WSPRnet, which includes a mapping facility.
This mode can be generated and decooded by a variety of free software on the internet.
Waterfall
This is how WSPR looks in your waterfall, very narrowbanded so lots of stations can use the frequency
Software
WSPR implements a protocol designed for probing potential propagation paths with low-power transmissions. Normal transmissions carry a station's callsign, Maidenhead grid locator, and transmitter power in dBm. The program can decode signals with S/N as low as -28 dB in a 2500 Hz bandwidth. Stations with internet access can automatically upload their reception reports to a central database called WSPRnet, which includes a mapping facility.
Usefull links
Download page to the software:
Link to the Live Map:
My Setup
WSPR can be operated in several ways, It can be done with the above mentioned software.
But even nicer there are a few kits to build a complete beacon yourself, I build a kit myself The QRP Labs U3 kit.
More info on my projects page.
