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.

My Multimode MEPT on 10.140073MHz has had a new visitor tonight.
Being in the Graphical Mode Sector (10.140000 to 10.140100MHz) it normally, unless someone miss tunes in error, literally does require a visit. Simply by setting the Dial frequency to 10.1386 and the Frequency in the 10.140100 to 10.140200MHz range.
The MEPT provides a guaranteed drift fee WSPR signal every 6 minutes starting on the Hour. After XX:18 the sequence then repeats at XX:20 and XX:26 etc up to the hour.
Power output is a genuine 40mW to a 10MHz 1/2 Wave Dipole.

When I adjust the time with the "Dsec"-button it change somtines the report-time from even to uneven.
In that case you find it in the database.

' 73 and good wispering
Peter , PE1DCD

I monitored 30m most of the weekend. Received many continental USA & CAN stations and a few European ones. Most impressive was 13702 km from 1 watt of ZL1BPU in New Zealand with S/N from -19 to -27dB.

Station of PE1DCD:
Name: Peter
QTH: Rotterdam
Grid: JO21fu
PC1: P3-700Mz, W98se, SB16, HM interface
PC2: P4-2600Mz , W2K, internal SoundMAX, HM interface
TRX: Yeasu FT897
PWR: 5W (sorry, less is not possible)
Feedline: abt 17 meter RG214u
Ant: 3 wire-coaxtrap-dipoles (80/40)(30/17/12)(20/15/10) HM
Ant: 6 meter dipole w. gamma match on rotor
The antenna is abt 3 meter above the roof of my 4-floor appartment.
The mainlob of the dipoles is North/south.
Good luck to all and '73

Just signed up and still in the reading / learning stages. More about me at
73 Dennis

I have been WSPRing on 6m all morning. I didn't see any stations at all. I use a loft mounted halo, so not brilliant, but at least its omnidirectional.

I have just resurrected another laptop from retirement. I'm still assessing how good the clock is, but it has been ok for several hours. I can now run two stations, presently 6m and 30m, although 6m is off right now. In principle I would like to do some serious measurements at 6m, always a band that has fascinated me, but it does need some responses.

Im on automatic operation on dial 10.13865 (so I can catch Eu QRPP MEPT's with mixed WSPR content in the visual 10,140000 to 10,140100 range) Tx carrier 10140161 or near at 20% until advised; and on the smaller tx/rx modified Radio shack CB whip with the rabbit ears top loading.

We have had to move out of sections on the property as we have infestations of insects which have to be removed inc all woodwork - gives a whole new meaning to bug key...

Just checked back over todays reports:-

2008-05-23 11:24 G8EUX 10.140150 -7 0 IO92md +33 1.995 G8EUX IO92md 0 0

anybody say how that was done? I use automatic spot upload. However, I noticed that my PC clock was out this morning - it keeps excellent time mostly, but I think the anti-virus did a download this morning, which may have slowed the clock.

Peter G8EUX

Coming home this evening from the shipyard I couldnt but notice the huge front end of what looked like the USS Enterprise in the guise of a massive Cumulo Nimbus cloud. With mulitple rainbow aura's up above the front of the "ship" it was an impressive and scary site as I hadnt taken down my fishing pole which the local CuNb tries to use as targetting weapons diguised as lightning bolts. It was pretty quiet for the past 4 days on LF, and 80m Eu sigs were received here, but last night the normal 20 over peaks were back making a hash of the decodes.

My new 8 Unit Multimode MEPT is on test on 10.140073 MHz. Running WSPR only in every 2 minute slot in order to check timing drift free running.
The complete TX uses 4 IC's. It consumes 53mA at 12Volts, Solar Powered, for 40mW RF output. Presently the Antenna is a low sloping 1/2 Wave Dipole for 10MHz.

No need for a Power Hungry Computer and Transceiver or Attenuators to throw away the power you just generated :-)

My Multimode + WSPR MEPT is back on 10.140073MHz from approx 15.00 GMT today 12 May 2008.

Further developments are afoot these will affect the 'other' visual modes.

This is an interesting bit of activity, and has really captured my interest. I have played with both PropnetPSK and with the "self-reporting" feature in the digital interface within Ham Radio Deluxe, but find this the most intriguing, particulary for low power propagation reports.

I am 47 years old, and currently living near Oxford, England, working for the U.S. Embassy here in London. My home call is K2PI. I have also held the calls ON9CPI, LZ/K2PI, XUF2B, XU2FB, HS0ZCI and KE2FB/DU3, among a few.

I have been asked how do I make the spot plots, which appear on http//
Below are a few tips (probably there are other ways to do it - so it is just one method):
1- Filter the data of interest (by band/callsigns/etc) from the spots page and copy it (ctrl-A, ctrl-C)
2- Open Wordpad and "paste special", "Unformated text", then "save as" .txt
3- Open the txt file with excel using "space" as separator
Now the rest is just Excel data manipulation - the purpose is not to give you an excel course or to rewrite the best seller "excel for the dummies", but just a few tips

I just wanted to make it clear to everyone that I didn't mean to criticize anyone's operation by the "WSPR, don't shout!" article below. It was just a play on words, not a directive. I had noticed that the average power levels were rising, and I was curious about that.

Some statistics from the meptspots database downloadable from the wsprnet website (update 0735z 8-May-2008). There are 402 reporters and the top ones are VE1VDM (with 27969 reports) followed by K1JT (24892) and W1BW (23269), while the most heard stations (1863 as total) are K1JT (27047 reports), VE1VDM (23709) and WB3ANQ (22160) [IV3GTH, I2KBD and IK1RKU among the italians]. The longest distance WSPR report is PA3ABK heard by ZL1ANY with 11937 miles (not counting the strange callsign/grids reported which seem wrong decodes). F1VS and F8RZ heard by ZL1BPU (11831 and 11811 miles).