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.

the new version will not work on my win7, i went back 2.0-171.
working lovely.

I've updated my k9an-wsprd decoder so that it handles extended callsigns and 6-digit locators. As usual, it is available on github -

Earlier I wrote about doing a man-portable WSPR teston on 40, 30, 17 & 10 meters at 0.5, 1, 2.5, 5 watts, using the FT-817ND, and the ATX-Walkabout antenna. Now firstly, nobody really expects the ATX- Walkabout to perform like a full size antenna, so no haters please! With that in mind, I think its important to understand how the antenna performs, rather than how we "feel" about its performance.

2014-11-26 07:10 K5XL 3.594148 -23 0 EM12kp +33 1.995 F5OIH JN06ci 7958 4945
2014-12-25 04:18 KE7A 3.594131 -27 0 EM12kx +37 5.012 F5OIH JN06ci 7932 4929
2014-11-28 05:48 WB5WPA 3.594046 -25 0 EM13qc +37 5.012 F5OIH JN06ci 7889 4902
2014-12-07 06:22 KD6RF 3.594129 -22 0 EM22ls +37 5.012 F5OIH JN06ci 7807 4851
2014-11-26 07:18 N5YHM 3.594096 -14 0 EM40xl +37 5.012 F5OIH JN06ci 7631 4742

For many years people in the UK have joined up Christmas with the New Year to make a very nice long break, many Factories and Offices close down so there are a few more Hams around than normal. Some of them have taken the opportunity to join in the MF WSPR activity over the holiday period. So there are quite a few new people to welcome to MF WSPR.

Over the past few days I have been building, from kit, a QRP Labs Ultimate 3 QRSS/WSPR transmitter. I went live with the U3 at 07:30 hour UK local time on 30/12/2014, with the maximum power output of 180 milliwatts on 30M band.

The results for the day are posted here in the form of screenshots from my computer. The band opened at my QTH at 08:02 Hours just before sunrise, and closed at 17:50 about 1 1/2 hours after sunset.

I am blown away by the distances obtained with my very modist setup of the Ultimate 3 feeding 180 milliwatts into my Half size G5RV stile antenna.

If you have spotted my callsign over WSPR in the last week then you have managed to receive an arduino based transmitter that is capable of less than 1mW of output power.

The complete setup consists of the following parts...
1. Arduino Nano
2. AD9850 DDS module
3. reclaimed generic gps module

Hello All
Myself and others will be txing WSPR on 630 meters tonight and almost every night.
Set your dial to 474.2 khz Upper side band.
You must have Experimental license to transmit .
You can rx and upload spots .
We appreciate all rx stations
You will be surprised what you can hear on an 80 meter dipole.

73 Ken WG2XXM / K5DNL

So far in the last few weeks I have achieved very predictable results on the 20M band, however I have turned my attention to the 6M band and have had some success with my signal being received in Germany twice within 1 week.
So lets see how it goes, I shall persist with 6M for as long as practicably possible and hope for some exciting new spots.

Had an unexpected spot from VK6XT on 20m late this afternoon:

2014-12-27 23:26 KB9AMG 14.097140 -22 0 EN52tx 5 VK6XT OF86td 17546 286

other stations heard by VK6XT at the same time:

2014-12-27 23:26 K4COD 14.097164 0 0 EM73sc 2 VK6XT OF86td 17969 262
2014-12-27 23:26 K4RCG 14.097148 -16 0 FM08xl 2 VK6XT OF86td 18520 285
2014-12-27 23:26 KE7TYT 14.097112 -23 0 DN40bv 5 VK6XT OF86td 15631 264
2014-12-27 23:26 HB9CZF 14.097079 -23 0 JN47ch 1 VK6XT OF86td 14081 103
2014-12-27 23:26 VE3PLE 14.097022 -12 1 FN25bg 5 VK6XT OF86td 18302 313

I must say up front I'm am a tinkerer when it comes to radio. I've never owned a rig and one of my biggest radio achievements was a crystal radio. I got my license years back after the shock of finding out a AM transmitter I made could be picked up several miles away. At that point I thought it was time to get a better understanding of what I was doing.

Still running FT897. Approx. 5Watts to Hustler ground mtd 5btv vs 100' Doublet crammed into a small city lot. Trying to see how these antennas perform under less than ideal conditions. Should be exciting! OR maybe depr
Ha Ha...........

I just did a test on 10 meters with FT-817ND and horizontally mounted Dipole for EU Wide coverage from KP25.
I cycled through from 0.5 up through 5 watts, with some strange (but good) results. I also did it all with Android OS!
The Dipole is mounted horizontally in hopes of getting Europe wide coverage. The side benefit would be to block the high power stations and freebanders from the east, who are killing 10 meters for me.

As usual I made a video out of that.

There have been a lot of new WSPR users welcomed into the group the past year. It occurred to me that many may not be aware that there is a version of WSPR that allows coordinated band hopping. The software is not featured on K1JT's webpage but is discussed in the forum. Here is the link to the discussion of the most recent version, WSPR 2.21

Frequency hopping is most interesting when there are a number of active users operating in the coordinated mode. Give it a try!

Hello everyone
I just uploaded a video to YouTube about the Android app called "WSPR beacon". The app is an incredibly powerful tool as it enables radio operators to take WSPR with them out in the field with minimal gear and equipment requirements. No more laptops, extra batteries, or the tons of gear normally required to activate.
This setup uses teh following gear
- Yeasu FT-817ND
- Wolphilink audio Interface
- Galaxy Tab or Galaxy S4
- WSPR Beacon app for Android