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.

If there is a wooden spoon for hams I should get it :-)

I'm running wspr on the command line of my old pi with a lpf from qrp-labs. After some stellar soldering of the lpf kit I wasn't getting a connection through the circuit. Talking to Hans at qrp-labs helped me realised that I had soldered toroids with enamelled wire and not removing the enamel for the connections to the pcb. I was happy to resolve the problem by burning the enamel off the bad joints and have now been waiting for 24hrs on 20m for someone to spot me.

This post describes an addition to the WsprryPi code to allow a flashing LED:

I've been using the inexpensive teeny add-on board, TAPR 20m Rpi WSPR board, on my Raspberry Pi 2 Model B for the last four days. Works perfectly, with no problems at all. So far accumulated 665 spots detected, with the furthest being over 2090km away. Not bad for 2.5m of speaker wire running indoors the length of the attic!

Running a TAPR 20m WSPR board/shield on a RPi2. First 24hrs only had two confirmed spots detected; DK6UD and DL3GAK. Both operators from Germany.

Using freeware software called "Tiny-Locator" I was able to get a rough distance calculation of 713KM or 445 miles, from my location IO91TM and the furthest location of JO40VS.

See for more information

Activity from a sailboat 0.5w vertical loaded antenna

73's to all de Jordi.

I got my call G4BDQ in 1972 so I'm an 'old timer'. It's worse actually. I remember the crystal set I was given in about 1953. I spent ages fiddling with it trying to hear something but I was living right in the centre of Southend-on-Sea and I was about 4 so antennas were not possible. Oh well. I started building stuff rather later in the 1960s. I started with a DF33 one-valve receiver. Then transistors, OC71s, OC45 etc. came along but I didn't like them. Then I discovered JFETS. Oh yes, I liked them. Nice high-impedance things, just like valves. Fiddled around for ages.

I will launch my first WSPR balloon tommorow in Germany.
it is an modyfied Ultimate 3s Transmitter weight only 37g incl. solarcells and dipole antenna.
Here is the transmitting shedule:

2016-07-28 22:42 WB4HYY 14.097108 -21 -4 EM73 0.5 F5OIH JN06ci 7056 50

Jim - WB4HYY

tonight (26th of june) i will try my raspberry pi zero on 10m from my home qth.

Soon i will temporarely move over to Scotland and will try to set it up again for a few days.

I finally found time to connect my rig to WSPR. Not ideal as I am using a 3 el. directional antenna will use my Challenger DX sometimes in future for testing more.

Finally got the personal blog up and running @

I hope to make lots of informational videos over the coming months on WSPR, how to get started, and some common issues that I ran into getting up & running.

I've found WSPR to be a great alternative to use when I'm just so busy I don't have any desk time w/ the radio.

Want to thank all the operators out there who continue to make WSPR better everyday!


Set up my IC7300 today on WSPR with HRD.

Happy days. :)

Today, running a home made loop 1 meter across on 40 Meters. Tuned close and final tuning with ant. tuner.

Logged a station on 10Mhz WSPR this morning - Callsign P98WAR (N. Korea) from Antarctica !!! This must be a spoof surely!
Eric (G4IRG)

It is necessary to install the icom usb drivers onto your PC. Go to Down near the bottom you will find for the IC-7300 the "USB Driver v1.20". Download and install this and then re-boot your PC. When this is done you can open Device manager and look for a Com Port called "Silicon Labs CP210x USB to UART bridge". Take note of the com port Number....This is the port that you will use for Rig control and PTT if desired.