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.

As a longtime user from WSJT programs for MS and EME I also tried the WSPR program after some talk with Jan PA3FXB last friday at our clubmeeting.
Saterday I RXed a whole day and night on several bands, and on sunday I also did my first TX attempt.
Was very surprised to see my signal was received at many places in EU and even in the US!!
I am using about 1 to 5 Watt out from my FT-920, as antenne I have a 1/4 wave vertical tuned for 20 meter only.
Is great fun to see it is working in combination with the internet page WSPRnet.
Well done all!!

Been running 5 watts on 10 for hours with no spots. Bumped it to 10 watts and seems N5VP heard me. Using a 10 meter Ringo at 20 feet.

Jim ... K8CXM

had rig activated whole day on 17mtrs, but only AB3IU hrd, lots of RTTY.
Now listening on a vertical antenna.

Last week was a bust. Tonight...results.

2010-07-13 04:16 KU4XR 1.838078 -25 0 EM75xr 5 KA1GMN EM12ku 1243 259
2010-07-13 02:44 KA1GMN 1.838054 -28 0 EM12ku 20 K3SIW EN52ta 1277 35
2010-07-13 02:44 KA1GMN 1.838055 -26 0 EM12ku 20 KU4XR EM75xr 1243 71

I'm exploring WSPR for the first time. This is also my first attempt at a digital mode besides morse code. I'm not clear what the maximum spottable frequency is.
I'm using my old Dell lap-top running Win98SE with an FT-817.
I intend to try 6m, 4m & 2m with WSPR. I would like to try 70cm & 23cm.

I changed from DTR to CAT for PTT and gained rig control in the bargain.
With the 756pro antenna on Auto, the antenna switch remembers the setting
for each band. Nice.

Using a dedicated sound card for both send and receive seems to make WSPR
stable under Ubuntu.

I had to download, configure, and compile the current hamlib to get the
756pro to play under WSPR. With Fedora, the list of rigs on station setup
comes up blank. Entering the rig number manually makes it happy.

A little while ago I got tired of XP wasting more than half
my office computer's memory. I coughed up $125 to upgrade
to Windows 7 64 bit premium. If there justice, the cost of
W7 should be subsidized by hardware makers. Let me count the
ways W7 forced hardware upgrades:

Video board - The current video drivers for a Nvidia 9600gt
caused the status messages for WSPR to disappear. Upgrade
to ATI.

Since I first joined here, I renewed my license and upgraded to Extra!

Just this week, with the help of a post on the forum, I was able to get the IC-7200 fully functioning with WSPR on Windows. The tasks are as follows:

    - Go to sourceforge (link) and download HAMLIB v1.2.11
    - unzip it. We need just three files.
    - Find hamlib-icom.dll, rigctl.exe and libham-2.dll. Copy these to the wspr program directory. We want to replace the existing versions.
    - Find the text file "hamlib_rig_numbers" (at least it seems to be all plain text) and add this line somewhere:
    361 Icom IC-7200 0.5 Untested
    The above is a direct copy paste from my own file.
    - Start WSPR. See if it complains about something in the hamlib_rig_numbers file. I messed with it for some time, I couldn't see what it was unhappy about, but I eventually got it to take the new line.
    - In setup, select:
      -- PTT Method is CAT

I have been increasingly fascinated by the precision and accuracy available in digitally controlled VFOs, like TCXOs, and disciplined oscillators using either Rh or GPS standards. But the lowly Si570 driving my Genesis 30/20 is holding to +/- one or two Hz, and it's pretty good against WWV, once calibrated. Right now, I've set my WSPR frequency to 10.140215, and I'm WSPRing away this evening....and that's precisely where it's being reported by most listening stations. I can even tell when some rigs are off by 10 or 20 Hz!

I got a PIC-EL to use on WSPR to save using my expensive HF radio. I got it going but was frustrated by a lack of an output when its transmitting a signal (needed to key a PA) and the DDS60 drift.

I have written up my solutions at

It includes details of how to GPS lock a DDS60



I am listening on 4m WSPR again today, RX only. Using my old Yaesu Converter and home brew Vertical Dipole antenna.

Results in the evenings last week were encouraging with Spots of G6AVK, 127km, 5Watts to his Vertical only 2.5m off the ground.

HF Tx antenna unavailable.

Rx only. Equipment FRG-100 + 100ft random wire.

Current unattended automatic monitoring of 10m

It appears that DL5RBD was receiving 20-meter signals, but reporting them as 40-meter signals on 09JUN2010.

... on 30 m but unfortunately there are 3 or 4 stations that send all over each other right in the middle of the freqeuncy windows at 200.
Please after setting up your WSPR program choose something under or above the default setting on 200 to be sure not be overlayed with another station. See screenshot.

Many thanks!

73 de Gregor DM1RG