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.

I got excited last night after I finished preliminary tuning of my indoor 20mb EFHW antenna and got spotted in VK with 0.5mW.

I installed v1.8 rc2 and it crashes on RX in WinXP. v1.8 rc1 was very stable for me.

2017.09/08 FIXED!
"--rig-name" seems to be causing issues in WinXP. No issues seen with Win10 (my PC at work ... ssshh). Possibly wsjtx couldn't find the correct exexutables ... my crash always happens during the RX decoding phase. 120 seconds ... crash. The code seems to look for wsprd.exe.

Today WSJT-X 1.8.0-rc2 has been released at

I downloaded this version (.deb file for Linux Mint) and installed it. This fixed the
"Hamlib error: Communication timed out while getting current VFO" which I had in combination with my FT-747GX.
As I found other users having the same problem with quite newer rigs, I would recommend to give WSJT-X 1.8.0-rc2 a try ...

I've had a lot of fun playing with WSPR lately.
Very interesting to know where you are being heard at any given moment.


Hello, I am active (rx only) hf 30 bands and 20 metres from mainly on 30 August to 6 September.
look for TK/I55387FI from Corsica JN41NL

Hi I'm testing WSPR with 5W and a 15WL (beaming 280°) on 432.200 . Any comment and/or report are welcome.

OK, I am using WSPR via my TS590S with HRD as the interface (I couldn't get WSJT-X to work directly via my SignalinkUSB; the TS590S has a built in SL-type soundcard). I have WSJT working FB on JT9/65 and FT8, but am getting no hits on the www site using wspr. I have the rig set @ 5W (minimum setting) and have tried the vertical DB slider @ max and @ 37db/5w. Also turned of VOX and processor and I am using suggested menu settings others used for my rig.I like the convenience of having HRD open while using WSJT, but am willing to forgo and switch to the signalink to get wspr working.

Working the problem with my station not showing up in the map. Using WSPR rather than WSJT-X in WSPR mode. Added the program to the permitted firewall ports. No joy. Any ideas?

Phoenix ARC is setting up a semi-permanent WSPR operation to study variations in propagation. Initially on 20mm (TX only), we hope to start TX on 30m soon, followed by 40m later in September when we may add RX in September, and maybe a second WSPRLite. We also hope to expand our propagation page to include our WSPR activities. or 73 MX0PHX

Unfortunately due to family matters, I was not at my station as the eclipse traveled across the US but I have now returned to find a very interesting summary log during the period from 2044 hours UTC and 2358 hours UTC 21/08/2017.

Using my WSPRLite, Homebrew 1/4 Wave 20m vertical with 4 x 1/4 wave radials spaced at 90 degrees with a 45 degree slant as a ground plane with feedpoint at around 4.5metres , 200mw.

There is a block of spots/reports from the North US with distances ranging from 4900km to 8400km. Little or no Euro.

First time on this mode, very excided with the initial results. An amazing system, 73

Fortunate to live in path of totality for Aug 21 total eclipse! I had family visiting from out of town to experience it, so we were out on the porch watching the big show in the sky. Enjoyed the sun's corona and the "360-degree sunset colors" all around on the horizon during totality. Birds and circadas went silent and my chickens went in the coop. As the sun brightened again, the roosters began crowing and the birds and insects started up again.

It was a magical experience.

Eclipse began at 17:01 UTC

I have analyzed the results of my WSPR spots collected the day before, during and after the eclipse. The operation was limited to 40m, due to the antenna, although this has given good greyline results in the past. I wasn't able to travel to the path of totality but operated from southern BC at CN89nc.

My station was spotted 50 times on Monday, of which 27 spots are unique and do not occur on Sunday or Tuesday - encouraging.
None of the unique spots occur between 15:46 and 21:05 UTC which was the start/end time of the eclipse - disappointing.

21st August 2017 - UTC

KX3 CHA / F-Loop [VSWR 1.1:1] / 20m @ 5W

19 unique calls during eclipse and just after including VA3RCL @ 5318km 293az

I have had my 80M WSPR station running since yesterday on 80M to get some baseline data, as well as data during the eclipse here in the path of totality.
I was a little worried last night when the FT8 crowd busted in on 3.572.6. Their big signals really were overlapping the WSPR bandwidth. Fortunately, today didn't see much FT8.
I was outdoors observing the eclipse, but had set the station to TX 50% of the time. Hopefully others along the eclipse path noted my signal improving around 17:15-17:25 UTC.

Lots of activity today for the eclipse. Fascinating to watch