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 you are looking for a true band hopping WSPR transmitter try out the new S/W for the Next Generation Beacons platform: Then you will be able to hop anywhere from 136 kHz to 1296 MHz. In this release 15 frequencies are possible but as the S/W source code is available too "any" number of frequencies may be possible.

Been having fun playing with the software for a few days now. Even got to New Zealand on just 2w output, which I think is as much proof of the pudding as one could ask for with these end connected OCFD type antennas from M0RZF:

Until I can repair my 400' doublet, I'm tuning a Triband 3 element on 40 meter WSPR.

Start 2150 UTC 26/3/17: for 5 days

I spent a pleasant morning yesterday using WSPR to compare a Chameleon P-Loop with an Alexloop.

Details here:

73 Richard G3CWI


So Exercise Blue Ham is and RAF Air Cadet / Amateur Radio exercise on 5 MHz, setup really as a contest and designed to foster an interest in radio communications for the cadets.

This weekend, cadet stations will be operating through the shared 5 MHz spectrum and within the amateur segments.

All cadet stations will be using MRE*** callsigns and will be looking to make as many contacts as possible. Full details are here:

I started RX only station on Low band.
So far I got signal from US/VK but no EU on 80m.

JG1eiQ / Toru

I will let the 5 watts traverse the world for day or so to see results.

I recently posted on the Knights QRSS forum ( a look at how the 28MHz WSPR data compared to the observed results amongst the QRSS mode users on the same band. The results tied in with the WSPR data. Also just for fun I looked at the WSPR data for the other end of the spectrum, 160m to see how things reacted. The chart clearly shows the seasonal changes.

The page is here -

Sorry gang,

By mistake I reported 14 mhz spots as 7 mhz spots today March 18th between 16:20 to 22:46

Rolf K9DZT

Hello all, I am currently testing the wspr mode in 6 meters .
Configuration is: 10w full wave loop antenna Horizontal polarization at 24m from the ground (260m asl)
I hope that the first European openings are soon.
The night I stay qrv wspr 160m
73 to all
ON4LUC op: Luc

The station OQ8SNW is a special event station to celebrate the 800th birthday of Sint-Niklaas a town in Belgium. For more info and history check Wikipedia (

Hi all!

Please click on the project page

and follow the link - "English description", the description below contains links to the necessary software and firmware.

If there is not accuracy in the translation, please report to the mail -


After tinkering most of the day with the Bike wheel loop,I finally replaced the coaxial loop feed I was using with just a piece of wire loop. I am now able to get a 1:1 swr down from a 3:1. Since I'm only running .2 watts and the loop is only about 50% efficient it is quite an issue. The feed loop is a little less than 1/5 the loop diameter too. Several loop articles I have read, recommend that. I have ordered a dc motor control for the motor that is attached to the variable capacitor. Right now I'm tuning it with a pair of channel Locks, pretty hit and miss.