During the last few days I have been playing around with the Weak Signal Propagation Reporter (WSPR) on 80,40,30,20m seeing who could hear my 10 watts around the world, I was impressed how far you can get with a few watts. A lot of stations outside europa are only recieving signals. You can see that because of there callsign.

WSPR (pronounced “whisper”) stands for “Weak Signal Propagation Reporter.” This program is designed for sending and receiving low-power transmissions to test propagation paths on the MF and HF bands. Users with internet access can watch results in real time at WSPRnet .WSPR 2.0 was introduced on November 19, 2009.

Here a sample of WSPR pointed on Googlemaps. The station you will see could hear me with only 40dBm.
The setup FT9000D 40dBm, Antenna one elm rotary dipole by SteppIr.

Frequencies in use for WSPR

Band Dial freq (MHz) Tx freq (MHz)
160m 1.836600 1.838000 – 1.838200
80m 3.592600 3.594000 – 3.594200
60m 5.287200 5.288600 – 5.288800
40m 7.038600 7.040000 – 7.040200
30m 10.138700 10.140100 – 10.140300
20m 14.095600 14.097000 – 14.097200
17m 18.104600 18.106000 – 18.106200
15m 21.094600 21.096000 – 21.096200
12m 24.924600 24.926000 – 24.926200
10m 28.124600 28.126000 – 28.126200
6m 50.293000 50.294400 – 50.294600
2m 144.488500 144.489900 – 144.490100

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