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.

Having got WSPR and WSJT working on my Ubuntu laptop, the next challenge was to get WSPR working on the more restricted Raspberry Pi

The story of my success is at (dated 3/11/12)


ww2r g4fre

Just finished successful completion of a kit from openbeacon for 30m
Now looking for cheap 30m mono band aerial design which I can dedicate to my beacon as I only have 1 HF aerial.

Well, I thought retirement last year was going to make it so much easier to work on the air and get some action going. Friends told me that I would be busy but nothing, repeat nothing, surprised me more than to find out that I just don't know how I found the time to work!
Well, after some soul searching, I have decided to withdraw from some (not all) of my voluntary community work after 3 decades, on the most part, of giving my time freely. I now hope to be able to return to the shack, as most of my operating over the last 10 years has been mobile (HF & VHF).

Does anyone know of any tx setup tools ?

I have a TX kit here which generates the tones, but trying to setup the desired FSK shift
and seeing if the data is being sent correctly is very difficult.

At the end of the day, attempting to see if homebrew equipment is sending the right tomes
relies upon making a transmission and relying upon the WSPR software to see if a decode has been

Very long and tedious !

Best dx so far today on my one watt to 2 el Moxon: RZ6AVM in KN95la at 3039 km.

Hi all

I just connect my Parallax Propeller WSPR transmitter to my 10MHz frequency OCXO with DCF77 synchronisation. So if the system is running stabil, I transmit at different WSPR Bands at AFcenter +23Hz. See if you are receiving at the right frequency.
More information about my rig see at callsign at

73 de Peter, DL1FX


N3IZN and W6SZ have been running WSPR transmissions on 10 GHz ( 3 cm )
now for some time.
We hope a new channel could be added in order to use all features of
the WSPRnet.

A this moment we are using 10368.405 MHz as dial setting ( this is temporary arrangement )

Exchanged reports can be viewed by selecting either "N3IZN" or "W6SZ" as call and reporter.

73 Rein W6SZ

If you are on 160 meters, or perhaps on 472 or 137 kHz, you may be interested in a new mode called JT9, designed especially for making QSOs on these bands. JT9 uses the structured messages introduced in 2003 for the JT65 mode, now widely used for EME and for QRP operations at HF. JT9 can operate at signal levels as low as -27 dB (in a 2500 Hz reference bandwidth), with one-minute timed transmissions. It also offers slower transmissions of 2, 5, 10 and 30 minutes duration, and the slowest mode can decode signals as weak as -40 dB.


My interest is mainly to observe propagation over the bands for my own education.
Until now I did use mainly FAROS for this purpose, because it gave me a nice graphical overview. The disadvantage was that the beacons from the International beacon Project are limited in numbers and only from 20m to 10m band.

So I was really missing 40m and 30m.

When I heard that WSPR 3 has a "frequency hopping mode", it was time to google for the program and try it.

I've made LF transverter using 10MHz reference signal from GPS receiver,
And have also modified 36MHz local OSC of TS-680V to GPS PLL.
Frequency accuracy is very good and drift is nothing.
But my antenna is very poor. Because of this reason I'm running 50W on LF WSPR.

I've been running WSPR on several days in October.

So far, my best DX on 1W has been LU8ENU at 11,208 km.

I seem to get N America around mid-day & S America later in the afternoon & early evening.

Graham - G3YJR

Put up a homemade 2 element quad today for 10m.. Am experimenting to see how much of an improvement it makes.. Have it pointed SSW starting at 02:19Z


I have published my WSPR standalone beacon code.
Everything is here on my blog, in french. The schematics and code comments are in english. The automatic translation will give you enough details to have the big picture on how to implement this mod and use the code.

Well today I thought I'd try as a test.

On 10.1Mhz -

a) 1.5m homebrew "Miracle Whip" standalone indoors
b) A 25ft wire "picture rail" antenna.

As expected, the "picture rail" antenna got a lot more spots.

But the curious thing was that when I took a few callsigns that had been present
over the complete test period and looked at the average S/N ratio of each antenna
with them, the average gain was only 4db !

I'm puzzled by this, as this was not what I would expect.

Because of uncertainty and timidity, I have avoided any operation on 60M but today I decided to listen for some of the European stations. I also decided to search the ARRL website today, "60m 2012", for guidance on 60m transmissions. I found some interesting reading in ARRL's 60M Operations Guidance, "":

Our VHF WSPR Group meeting at 2012 Pacificon/ARRL National Convention was very well attended. Thanks to all who participated in our meeting.
Here is a link to our presentation slides.

Been using the Yaesu FT-817ND with 2.5W into the 14AVQ vertical or the G5RV. Both these antennas are in my smallish backyard which is mostly taken up by two large Ash trees so the antenna elements are involved in branches and leaves. This compromises my signal somewhat but the station still receives and is received by other WSPR stations. Pretty amazing software.

Hello fox

I mounted the cushcraft R5 on the roof and it improoved the long distance reception on 20 mtr and above to ten.
Now I test a magnetic loop for 7.1 , 10.1 and 14.15 I intend to make the remote for tuning and direction, the ZS6BKW
is in the N/S direction and i can't hang it the E/W direction
so then I use the loop on the lower bands.

73 Peter

All WSPR operators are welcome to read and join the 2 meter WSPR study discussion on the Google Group at Anyone may ask Glenn N6GN or myself for an invitation or log onto the site to request a subscription to the e-mail list.