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WSPR 
Operational WSPR 

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.  To see a live version of the map pictured at top right, click here.
http://physics.princeton.edu/pulsar/K1JT/wspr.html

Propagation data:

 

630m Band (472kHz)

WSPR 630m band activity data recorded for 9 x 24 hour periods  16-25/04/2017: WSPR_630m_20170416-25a

WSPR 630m band activity data recorded for a 24 hour period on the 10/03/2017: WSPR_630m_20170310a

 

160m Band (1.8MHz)

WSPR 160m band activity data recorded for a 2 x 24 hour periods 03-04/05/2017:  WSPR_160m 20170504B

WSPR 160m band activity data recorded for a 4 x 24 hour periods 01-04/05/2017:  WSPR_160m 20170504A

Compare the compact active antenna with the main station antenna

 

80m Band (3.5MHz)

WSPR 80m band activity data recorded for a 24 hour period on the 22/03/2017:  WSPR_80m_20170322a

 

60m Band (5.2MHz)

WSPR 60m band activity data recorded for a 24 hour period on the 5-6/05/2017:  WSPR_60m 20170506A

 

40m Band (7MHz)

WSPR 40m band activity data recorded for a 24 hour period on the 19/03/2017:  WSPR_40m_20170319a

WSPR 40m band activity data recorded for a 24 hour period on the 24/02/2017:  WSPR_40m_20170224a

 

30m Band (10MHz)

WSPR 30m band activity data recorded for a 24 hour period on the 28/03/2017:  WSPR_30m 20170329

 

20m Band (14MHz)

WSPR 20m band activity data recorded for a 24 hour period on the 08/03/2017:  WSPR_20m_20170308

 

17m Band (18MHz)

WSPR 17m band activity data recorded for a 24 hour period on the 27/03/2017:  WSPR_17m_20170327

 

Also see related pages:

Computer to Radio Soundcard Interface Computer Sound-card Interface.

 

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Page last revised 09 May 2017  
 

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