The Weak Signal Propagation Reporter Network is a group of amateur radio operators using K1JT's MEPT_JT digital mode to probe radio frequency propagation conditions using very low power (QRP/QRPp) transmissions. The software is open source, and the data collected are available to the public through this site.

Please note 80m frequency change to 3.5686 MHz (USB)


Please note, the WSPRNet site has been updated to reflect the change to the 80m WSPR frequency which is now 3.568600 MHz USB.

Thank you to K1JT and G4ZFQ for pointing this out.

73 Gary W1GJM

[From Admins] Map issue -- a fix of sorts

The issue with the Google Maps is related to the change Google made on July 16th, 2018 that severely curtails the free API limits. WSPRNet will be transitioning to an alternative mapping solution as soon as possible.

In the interim I have added a new field to the User Profile form for storing your own Google Maps API Key, if you want to get back to the way things were. You can get your own API Key by following the link below and I would strongly encourage you to read the Q&A down the page.

A time stamp-list of reports by DP0GVN, German research station at the south pole

SpotsBy DP0GVN, 160 meters

45 spots:

Statistical analysis of WSPR reports over a two month period indicate that the actual relative gain patterns between antennas 1 and 2 correspond to the modelled gain patterns. The antenna model and simulation results were obtained using the Altair Feko antenna modelling software. Included in the model is the wooden tower and attached structure. The attached structure is a 10-12 foot wooden shed that houses the remote antenna tuner. The wooden tower has minimal effect on various antenna gain patterns, but it does have a notable effect on the each antenna's resonance. Resonance is lowered.


OK, it's a click-bait title, I confess :-),
It is about using Lasers to transmit WSPR.
Pretty cool regardless, more info on my blog


New to wspr, i m happy to try it and see that 5w of power can be heard so far away !
see you on the waterfall
Jean-Louis F1IEE

From 2019-07-25 until 2019-08-10 I'll be operating from the Baltic Sea coast (JO45rd). Rig will be FT-857 (up to 40 dBm) into a matched 6.3 m vertical.

Just curious what kind of antenna you are using on 160 meter WSPR band.

73, Jim WB5WPA

I’m new to digital modes even though I’ve been a ham for many years. Thanks to those who contribute.

This still works if you are not inclined to fool around with google, and if you use an ad blocker of some sort --->

On my systems, I got rid of that annoying "Development Purposes Only" message on the Maps produced on this website.

I was poking around in "Blockable Items" as I often do to speed up page loading or to get rid of the pop-up crap and script snoops, and found that blocking this item ---->

just looking for activity on 6 meters

I decoding to 6 channels of WSPR simultaneously on the KiwiSDR.
Decoding and spotting can be done without a PC.

Here's my favourite WSPR spot of late:

2019-07-04 20:10 MM3OQR 28.126041 -12 -3 IO87we 0.5 FY5KE GJ35 7244 238

I think 7,244km is probably my distance record for 10m. :-)

KP4MD/P is active on WSPR until July 14, 2019 from (FK68xk) Carolina, Puerto Rico, on the north shore of the island.
Radio: Elecraft KX3, 5 watts on 20, 30, 40 and maybe 80m.
Antenna: Buddistick monopole at 40m elevation over the Atlantic Ocean.