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.

I decided to try something fancier than the Minimalist
sound card interface I described previously.

This hasn't worked so far.

I'm pretty sure the clock is pretty well synchronised and the antenna and transverter are working pretty well. The WSPR software worked fine on 10m with sensible-looking decodes.

The problem may be that my rx frequency is off. I'm having a problem checking this as the only beacon I've heard recently is GB3ANG.

I have two wire antennas pointed in different directions: an inverted V pointed NE/SW and a bob-tail curtain pointed NW/SE. WSPR has been useful in helping me see if the antennas really have any directional characteristics. Indeed, they do. The inverted V gets me into NE Canada and Europe in one direction and SE Asia in the other (from WA state). The bob-tail curtain shows directivity into South America in one direction and Japan/Siberia in the other. State side, both antennas seem to be about equal with, perhaps, the bob-tail curtain being better for Florida.

I picked up a pair of fancy 1/8 inch mono Radio Shack
phone plugs for the latest iteration of my rig interface.
Everything worked normally until Thursday afternoon
when the stations stopped receiving my WSPR signals.
The fishfinder also showed no output. Adjusting audio
and RF gain for full output yielded nothing. But the
radio's microphone got out normally.

Using a Trio TS-440s at 5 watts. The antenna is a Hustler 5BTV vertical ground mounted about 100 feet away from the shack. Quite a number of ground radials but could do with a few more and have run out of junk cable.
Have a little problem keeping the output power at 5 watts, it can vary between 4 and 6 watts between tranmissions, maybe a temperature effect.

This is a comment about the choice of 7.040 as the WSPR frequency on 40 meters. I recently posted a benign comment on the QRP list about openings in propagation based on my spots on the 30 meter band, and received a polite but negative comment from a ham who loves QRP CW on 40 meters. His negative feelings arise not from 30 meters, but from 40M. He points out that 7.040 is still a QRP calling frequency, occupied by CW ops for many years.

I will be qrv sunday from local sunset till next morning sunrise 18/19 Juli for some RX test on Top Band.
Will be only RXing with my ALA 1530 loop antenne, will put him in direction NW/SE.
So lets see what we can receive this night.

Johan PE9DX.

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