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.

This morning my little baby has performed an very hard spots with New Zealand(ZL1RS) on 20 meter band with this configuration:
Raspberry A+ - seven elements low pass filter- 200mW driver - 120 ft RG213 - Vertical multiband Antenna.

I am receiving stations quite well with the antenna, but not enough RF going into it. Only 10w at present, until I box my 100w amp. Yes, I know it being boxed for a long time now, but .....
I hope to also lift the antenna up a bit more in due course when I can afford a longer pole.
Just picking up these stations right now

Nice to HEAR K1JT on 30!!

This morning, I waded into my back garden bog and attached an earth wire to the antenna. Not having wellies, I wrapped a pair of black bags around my feet to keep the mud off my shoes. I am tx'ing on 475.15Khz

Anyone else spotting this station on 30m, notice he is listed as a Technician? I'm thinking of sending him a postcard, but the map puts his grid in western Massachusetts - not eastern New York.

Things that make me go, "hmm...".

I am once again back on wspr with the same antenna as last time. Its not very high up as yet, but dont have a long enough piece of coax to do so. Not srious as it has worked well from this position.

Timestamp Call MHz SNR Drift Grid Pwr Reporter RGrid km az
2015-01-17 16:04 KA9CQL 14.097116 -24 0 DM14hl 5 VK7AM QE36ov 12936 234
2015-01-17 13:38 KA9CQL 10.140198 -25 0 DM14 5 KB2SVD FN20nh 3745 67

Hi all, my Ultimate 3 WSPR transmitter is finaly finish and setup. I added a voltage regulator to the kit so I can now power the TX from any power supply AC or DC from 8 Volts to 15 Volts. And have upgraded the SMK52 GPS reciever to a SMK61.
The TX has been on test for over 24 hours and seems to be working very well.

The attached screenshot says it all.


I was just heard by K8TLC on 30m. Nice to know that even though the band appears "dead", and I'm only putting out 3.5 watts (or so), my station can be heard 2/3rds of the way across the country! Outstanding program, outstanding results!

Since some weeks I use the RaspberryPi to transmit WSPR beacons with 10dBm (10 milliWatt).

Works very nice! How to do it? Check the article on my website..

Greetings! I just finished compiling WSPR for CentOS 6, and have successfully linked my SignaLink USB to my Yaesu FT-857D. I am feeding a shortened G5RV through a MJF Versa Tuner II, and am using 5 watts output from DM14, Victorville, California, USA. I am anxious to see if anyone can hear me. I will play around with bands and configurations to see what works best. See you on the map!
- Mike KA9CQL DM14

Added a new video to the series

This time I go through the results of my 30 meters WSPR test of the ATX Walkabout antenna.
Equipment used
- Yaesu FT-817ND
- Wolphi-Link Audio interface
- WSPR Beacon App for Android
- ATX Walkaboutsetup for 30 meters with counterpoise.

When K4EH in EM73 spots me, the map shows him in the middle of northern Greenland, not in EM73. Anyone else seeing this? 73

Im currently using my Softrock Ensemble to test my homebrew active aerials on RX.
all my current spots are generated by a wire loop 1.5 meters Diameter. And it's mounted just 2 Meters above ground.

At present its vertical, and optimised for N-S paths. Hoping to hear some VK or ZL stations shortpath across the North Pole.

73 Paul

Hello everybody... Just got the software working with my 817 but the laptop has a line-in audio problem so no waterfall or rx decode. Rig control and output audio seems okay. Currently testing on 14.0956 dial freq with home-brew bell-wire antenna in loft, rig on 5w and WSPR TX power setting on 0db... Will be testing on various freqs over the next few days.