WSPR de ON6FF ...

WSPR (pronounced "whisper") stands for "Weak Signal Propagation Reporter". It is a computer program used for weak-signal radio communication between amateur radio operators. 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.

I'm using a home-build WSPR-kit "Ultimate3 v3.06" from Hans Summers.

GPS module : VK16E

Frequency : 7,040 MHz

Output : 200 mW (23dBm)

Antenne : half wave dipole (2 x 10 m) on 6 m abg and 40 m asl .

Sending for propagation tests in the 40 m band only >>>>>> ----- ON6FF-JO10KU-23dBm -----

Results : my wspr is heared in all the continents ...