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.

By Anthony F4GOH and Christophe F4GOJ.


Hardware list :
  • VHF Beacon and APRS Tracker
  • HF Arduino Vna.
  • HF multimode beacon v1.
  • WSPR message Encoder.




I know that most people have had Joe pop up on their WSPR or WSJT-X screen...this is the first time for me!

Only been doing this about 2 years!


Mark (MW1MDH)

With the success of the Raspberry PI transmitting at a fraction of a watt through my 30/20/10 maypole dipole, I've hooked my new FT-450d up to my laptop via a Signalink, and am now running WSPR 2.x on Windows on a 20% transmit cycle.

With the multiple factor increase in transmit power, I expect to be heard by more stations, and so far that's holding true. Stations in Netherlands and Germany picked up my recent packets. I'm going to leave it running overnight and see what happens.

Moving up from a single 20m flattop dipole antenna, I thought I'd try out a 3 band maypole-style antenna setup in the attic, based on this design:

This is a 30/20/10, with the 30m wire lined N-S flat, 20m lined NE-SW inverted, and the 10m lined E-W inverted.

Already showing some additional resonance and locations, with stations hearing me on 15 meters for some reason, and a station in Orlando picking me up overnight.

mageia 5 - attempt make wsprx
cmake ..
CMake Error at /usr/lib/cmake/Qt5Multimedia/Qt5MultimediaConfig.cmake:15 (message):
The imported target "Qt5::Multimedia" references the file


but this file does not exist. Possible reasons include:

* The file was deleted, renamed, or moved to another location.

* An install or uninstall procedure did not complete successfully.

* The installation package was faulty and contained

I have just uploaded an updated version to Google Play.


In this version I have re-engineered the download code to improve stability and memory management.

The enhanced features are :-

Wanted to record my experiments.

Since upgrading to my general ticket, I've set up a 20m center-fed flat-top dipole in my attic, about 30ft above ground, with a 1:1 ugly balun.

But I had no radio to try it out with.

So after reading up, I set up my raspberry pi model B with a LPF connected to GPIO 4, feeding 50ohm coax up to my attic. The pi is powered through my Alinco 30amp power supply's 12v/5a output, using a step-down converter to bring it to 5v.

Had some interesting WSPR reports on 15m with Hisa, 7L4IOU, on 15m this morning.

After checking VOACAP and doing some research, I think these were long path reports. This would be a record WSPR distance for me at 30073km. Next highest is VK6XT on 20m at 22509km.

2015-06-19 14:44 7L4IOU 21.096056 -9 0 PM95wr 2 KB9AMG EN52tx 9991 33

2015-06-19 14:48 KB9AMG 21.096043 -26 0 EN52tx 5 7L4IOU PM95wr 9991 323

2015-06-19 15:04 7L4IOU 21.096057 -23 0 PM95wr 2 KB9AMG EN52tx 9991 33

Looking for some JA stations to Sked WSPR on 6 meters this weekend. I know several have exchanged decodes with VK stations, time for NA... Heck I'm feeling greedy, even 2 meters maybe. I've exchanged decodes with VK and ZL on 50 Mhz WSPR. I have 50 Mhz RX on 24 X 7 usally pointing to VK, but will turn my beam by request. Right now I'm pointed at HI for this duct that is open.


2 meter WSPR spots span the 4061 km between N3IZN in California and KH6IMB in Hawaii today
Read the discussion on!topic/2-meter-wspr/4WaqFZTfYoQ

Well after spending several hours in the shack with the kenwood manual on my lap, I finally have wspr working. I can,t see myself on the map despite the grid being correct but we will figure that out in due course.

I enjoy making antennas, so I am looking forward to see where the reports come from. Today I am using a 17M band homebrew delta loop.

to all

Well, I upgraded my Ultimate3S to firmware 3.08 ( thanks Hans ). When I first fired it up, the XMT frequency was so far afield that I had to manually make added corrections to what the HP correction algorithm was doing to get the radio into the ball-park. Now that the synth frequency has been properly corrected, it takes only one or two initial corrections when first fired up to get settled.

Hi All,
I am only in ET until Friday morning 12th June and will be listening all day today on 10m and then all day thursday on 15m
(tnx Patrick!).No tx again I'm afraid.
Unfortunately it's the rainy season out here and the internet is up and down and has failed totally at the rx QTH so I
will have to post the spots manually.
So, todays 10m spots hopefully posted tomorrow, thursdays 15m spots posted Friday...... etc.
I'm just about to try and download some spots from setup testing yesterday on 10m,
73 John G8DYK

im try make WSJT-X v1.6.0-devel under KUBUNTU 14.04
result - full make ok, but after start message "An error opening the audio input device has occured."

under "Mageia 4.1" - not found rpm "QT5serialPort" and stop make

I currently don't have an HF radio, just a couple of 2M handhelds, and I wanted to get on HF to exercise my privileges somehow. I found that you can set up WSPR with a Raspberry Pi (I have plenty of those!) so I embarked on this project to set it up and I thought I would explain what I did so others can benefit. This write up is going to assume you have some knowledge of the Linux command line (bash) and know how to navigate around as well as how to set up and use a Raspberry Pi.