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'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.

My only HF rig is a Kenwood TS-2000, and thanks to limited funds things are likely to stay that way for a long time. However, I'd like to reduce my transmit power below the 5 watts the TS-2000 provides as a minimum. Does anyone have favorite 5W QRP attenuator or kit they can recommend? Thanks you for your advice.

Now that I have been operating WSPR mode for a while, there is something that I would like to see opinions on from other WSPR ops. I have observed +10db signals and above "covering up" the weaker signals during the 2 min. rcv sequence. I normally run 5 Watts output or less,and I have a friend nearby (9 miles) who is also a WSPR op., because of this I have reduced my TX fraction to 15%, which lets me trx approximately every 14 mins. and since most WSPR stations are transmitting @ 20%,( approx. every 6 to 10 mins.

I've recently been working on getting WSPR working on my Raspberry Pi with a cheap USB audio adapter and though that a others may be interested in the problems/solutions I've worked through.

If you have linux operating system installed on your computer like ubuntu and Wine running in the background,WSPR will work very well ,So good you will ferget your using linux ,And not windows os. NY7U

I have greatly re-worked the set of things which happen to do the daily processing after 0000Z (database backups, dump of csv extracts, gathering of data for stats/graph page). I was also being a bit too aggressive about how many web server processes to run, with the result that the server was swapping during all the stats processing. I think that should all be fixed now.

On another front, I have started to keep another database table of an "activity log", which should aid in future automatic fixup of wrong band reports. I have some more development to do, but stay tuned!

Ok I'll try to explain.

If I have a self contained homebrew WSPR transmitter for others to check
propagation with - how do others even know it exists, especially if it's on a band
that often shows zero users (60m/10m/6m/4m/2m/70cms are good occasional examples.)

Using the proper WSPR software enables WSPRNET to report the activity in the band listings.
Others see callsigns listed and are therefore *tempted to give it a go.*

Tune in on WSPR tonight, 136 kHz USB dial frequency. Signals should easily cover from QLD to TAS, and possibly from SA to ZL.

73, Dimitris VK1SV

First of all, we hit another major milestone recently, as we surpassed 100M spots in the database over the past 4.5 years!

However, many of you may have noticed that the site is extremely sluggish or unavailable during the hour or two after 0000Z, when it's doing it's daily stats computations and csv file dumps. It seems that every order of magnitude or so, I need to re-architect aspects of the database, and we're clearly at that point again.