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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:

 

Various WSPR data charts for a variety of bands and studies.

 

630m Band (472kHz)

WSPR 630m band activity data recorded for 4 x 24 hour period from the 21~24/08/2017: Comparing a new PA0RDT active antennas with earlier modified design PA0RDT active antennas. WSPR_630m_20170824
WSPR 630m band activity data recorded for 5 x 24 hour period from the 27/06/2017: WSPR_630m_20170701
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 4 x 24 hour periods 17-20/09/2017:      Compare the Multi-band dipole antenna with the same antenna configured as a  'T" Antenna. WSPR_160m 20170920
WSPR 160m band activity data recorded for a 2 x 24 hour periods 03-05/09/2017:  WSPR_160m 20170906
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:   Comparing the compact active antenna with the main station antenna. WSPR_160m 20170504A

 

80m Band (3.5MHz)

WSPR 80m band activity data recorded for a 5 x 24 hour period of 25/09/17 ~ 29/09/17: Compare the Multi-band dipole antenna with the same antenna configured as a  'T" Antenna and configured as an  'L" Antenna for operations on the 80m amateur band. WSPR_80m 20170929
WSPR 80m band activity data recorded for a 5 x 24 hour period of 28/08/17 ~ 01/09/17: WSPR_80m 20170907

WSPR 80m band activity data recorded for a 2 x 24 hour period on the 22~23/05/2017:  

Investigating short range skip zone on the 80m band.

WSPR_80m 20170522
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 3 x 24 hour period on the 5-6/05/2017:  WSPR_60m 20170506A

 

40m Band (7MHz)

WSPR 40m band activity data recorded for 8 x 24 hour periods ending the 05/08/2017:  

Comparing the 40m sloper antenna with the main station antenna.

WSPR_40m 20170805

WSPR 40m band activity data recorded for 4 x  24 hour period ending the 17/07/2017: 

Comparing the 40m sloper antenna with the main station antenna.

WSPR_40m 20170717
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

 

Step by step guide for exporting WSPRnet data to Microsoft Excel for charting. WSPR CHARTS

It is essential to maintain an accurate computer clock for long duration WSPR monitoring and the Dimension 4 clock sync application is ideal for the task: http://www.thinkman.com/dimension4/

 

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Page last revised 29 September 2017  
 

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