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.

[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.

Hi all.
I am running a Summer Sale fora few days so if you want to get a standalone WSPR transmitter this can be a good opportunity to do that.
Check it out at


My name is Bo and my QTH is Saxtorp, Sweden. My rig is Yaesu FTDX-1200 and Drake B-Line. Antennas is Cushcraft R5, T2FD, Chameleon Tactical CHA TD LITE.

I have been active with WSPR for six weeks now. It started with my YAESU FT-900 in QRP mode at 1 watt.
Now I'm doing new tests with the Raspberry Pi at 16 dBm and an SI5351 generator at 13 dBm.
I enjoy everything very much.
Please have a look at my website:

W5KUB-18 has circled the globe once and has passed through the International Dateline which seems to have wind related delays traveling North of Midway Island. The whirlwinds seem to keep the balloon between Midway Island and Hawaii. However, the whirls seem to be pushing the balloon beyond Hawaii this leg. It will be interesting if we will make California by day 35. de WZ1L

OK, so this WSPR thing has grabbed my attention again and I was wanting to see how or if my antenna and propagation is from N. Las Vegas the past few days. Since I like tinkering and have a simplistic set-up, some antennas, and an HF rig (TS-50 with intermittent receive audio problems) I tried to see if I could send out a signal. No interface, no computer (but using my phone iPhone 11 w/ WSPR Watch, and some headphones).

Station is Yaesu-ftdx1200- Just getting into Ham radio HF

de sv7SJS

Hi my name is Roy,
I live Thorne in the North of England about 10k north of the large town of Doncaster.
I've been a ham since 1995 but been around the airwaves since 1978 / 1979.
My present wspr setup is a Sotabeams WSPR Classic running 250mw, the usual antenna is a Super Antenna MP1.
I would like to respectfully request if you've come this far please send me a QSL card from your station, to which I will treasure and send a return asap. My details are on
Good DX

links to YouTube videos of WSPR generated 40M Propagation results

Freshly installed DX-EE antenna in my attic. Working amazing!

Today, I finally managed to get the Raspberry Pi 4 to communicate over RealVNC with my iPad and the Icom IC-7300.
The most difficult issue was getting the RealVNC to provide a desktop image to the iPad.
Most of the instructional YouTube videos and other instructional webpages assume that their audiences are reasonably well-versed in Linux.
I know virtually NOTHING about Linux.