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.

Event of the night; Alejandro heard near SR by Bjorn SM0MDG and Rolf LA2XPA
2016-12-07 06:34 LU8YD 1.838100 -27 0 FF51xb 5 SM0MDG JO99 13497 36
2016-12-07 07:42 LU8YD 1.838100 -23 0 FF51xb 5 LA2XPA JP33wi 13174 30
Congrats to all, 73

It's now trivial to write "new record"; night after night 160m stations generate huge number of NA/EU spots "across the pond"; widely above 1000 dxspots.
A significant figure is the number of UNIQUE dx spot: 221, to compare to previous top Nov23: 122. In the round 53 EU stations and 18 NA stations.
Best NA rx stations: W1IR(12EU), KK1D(10EU), W8AC(8EU), K3RWR(8EU), K9AN(6EU), K4RCG(5EU)
Best EU rx stations: F59706(8NA), MW0PPM(6NA), GM4SLW(6NA), ON4LUC(6NA), PA3FYM(6NA)
To note first NA stations heard by Anthonie NL8992 (K3RWR, W1IR, W8AC).

Great work from FY5KE this night on 160. Hope more to come...
73, Patrick, F59706

Sorry about that!

Was testing out the old PCR-1000 for RX duty and I totally missed the band setting. I'm controlling the PCR using flrig and not via wsjt-x.

Apologies, between 05:42 and 17:30 UTC 01-12-2016 I was reporting spots made on 40m as 20m spots. 629 spots affected in total.

I've emailed WSPR admin with the details of every impacted spot from the database to see if the database can be corrected.

Thanks to DK9FQ for letting me know, he saw his WSPR transmissions being misreported by me.

After lots of playing around, I have finally managed to get my Yaesu FT-817ND working on WSPR using a SignaLink USB interface. This means that as well as transmit I can now report received stations. It is currently running on 20m into my Cobwebb with 0.85w output and appears to be working well so far....

Another day with the trusty old FT-840 listening to 10 WSPR. Nothing heard. Nothing at all. Decodes on other bands, just not 10.


it seems my other laptop has issues.

i swapped out one laptop (w/ OS X) for another laptop (old Windows Vista). all other items in the chain are the same, cables, interface, radios, antenna. sending out 30dBm on the ft-817.

Tokushima (some 500km away) is hearing me and reporting me at different frequencies w/ different SNR. at first i thought there was a bug w/ the 1.7-rc2 release i'm using but the same issue occurs with the official 1.6 (r6263) release. my ft-817 is showing 0 bars of alc.

Sorry for reporting spots with wrong freq, my bad

I just tried sending and receiving simultaneous on the same band with a single antenna. I am using only a Red Pitaya and a S-match for a 2x20m Dipole. There are no other filters or any amplifications.
For splitting the antenna and for decoupling the receiver from the transmitter, I use a Wilkinson power divider.

As evidenced in the WSPR database, some US hams are transmitting on the default WSPR 60m dial frequency 5.2872 MHz which is outside FCC authorized 60m channels.

Some of the questionable 60m reports in the WSPR database appear to be uploads from stations with HF receivers that are not synchronized with the WSPR program frequency, such as in this listing

Hi guys,
I DL6OW starting today my third WSPR balloon STELLA3.
Ist an modified QRP-Labs Ultimate weights only 29g!
It will start from the german city Mülheim-Ruhr near the town Essen.

**** All informations and live tracking here: ****

If the balloon travel over 1000km, every spotter gets an Special QSL Card!
Rapports in JT-9 are also welcome at !!
vy 73 Dan

Raspberry QRP TX Shield arrived from TAPR yesterday. Just 4 commands to install the software, plug in the shield and antenna and it's running. Vey impressive.

The attached screenshot shows a series of nighttime spots between the UK and Denmark. I often see similar runs but to different Scandinavian locations. They are always very specific paths. My theory is that they are the result of E layer propagation from the northern wall of the mid latitude trough. This dips south in slightly disturbed conditions. Is that a likely explanation?

I have just completed the very simple installation of the new Sotabeams WSPRLite. Currently on 20m but conditions are pretty abysmal. Usual antenna in use (6 Band Hexbeam at only 20ft.)
Looking forward to doing some comparison tests with other antennas and beaming in different directions.