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.

Been talking about this WSPR for a long time and finally managed to configure it,,,
So easy to use and fantastic distances with such low power...

Oke Boys

Here is a new TS-480SAT and I did remark the problems whith cat remote TRX and WSPR X.
first in the remote cat on a comport set the port and the transmitter on 57600 baud,
and on hardware control! , oke, then i connect the data port for the audio input and audio output
from the pc interface , so you have also set a secundairy com-port for the switch ( PTT ) to data mode on the data connector see the manual TS-480sat
This switch from the PC interface is muting the Mike and connect the data input to the audio from the TS-480sat

After quite a time of absence I just started WSPR ops last night. And ... big surprise ... even though the SFI is only around 100, my very first transmission (running only 2 W into a simple end fed longwire on 20m) was received in ZL, on the other side of the world, only some 1.400 km from the antipodes! And that was in the middle of our local night, far away from anything that could be described as a grey line...

It's always amazing how far you can get with low power! :-)

Hello ! I would like to use WSPR with my IC-7100 via USB (com-port) and IC-7100-Soundcard (USB-com-port). I would like to hear from other IC-7100 owners ...

Like Opportunity on Mars, after winter season was charged battery in the WSPR beacon, which I "forgot" on the lava field somewhere in Lanzarote island during my last summer holiday. You can see spots from it on 30m band again since april. Beacon contains DDS, GPS, 500mW solar cell and transmit with power 200mW to dipole antenna every 10 minutes depending on the state of charge 2Ah LiON battery.

13:51 PE3ES 2014-05-25 13:44 DC4LC 7.040074 -8 0 JN48np 5 PE3ES JO22da 508 319
13:51 PE3ES 2014-05-25 13:28 PE3ES 10.140230 -20 0 JO22da 2 DC4LC JN48np 508 136
13:39 PE3ES 2014-05-25 13:28 PE3ES 10.140212 -8 0 JO22da 2 DJ2RD JO40cc 347 126
13:38 PE3ES 2014-05-25 13:20 DJ2RD 10.140177 -12 0 JO40cc 5 PE3ES JO22da 347 309
13:38 PE3ES QSO with DJ2RD fun!

Grayline result 2014-05-25
18:58 PE3ES 28.126122 -17 0 JO22da 2 PY2RN GG66lw 9721 22
17:56 PY2RN 24.926022 -19 1 GG66lw 5 PE3ES JO22da 9721 29

I'm new to 6m WSPR. Any recommendations or info on propagation? I'm using a ground mounted 6m resonant vertical dipole; not optimal for sure. Thank you in advance for a reply.

73 Bob

I live in 3rd-floor urban flat. If you hear me, it's probably thanks to my Hustler mobile antenna. It's clamped to the aluminum rail of my balcony, which appears to be bonded to the metal siding of the building. When I discovered that, I made the rail my station RF ground. My noise level dropped dramatically!! and this has made ham radio interesting again. No longer was I confined to mobile operation.

The Hustler has gained me WSPR reports on 10, 15, 20 and 40m, and I have worked 5 continents on CW and SSB. I have used it to pick up over 150 LF/MF aircraft beacons from Hawaii to Hudson Bay. For LF/MF I work it as a voltage probe, with a homebrew FET preamp. (Attempts to base-load the Hustler have not succeeded.) My best LF/MF DX is hearing WG2XXM at 2500 km on 600m. I was able to complete two seasons of LF/MF activity before it was curtailed by a dramatic rise in impulse QRN from a cycling source (possible aquarium heater or electric blanket?).

I still get TVI complaints, so to keep peace with my neighbors, I have adopted QRP/QRPp modes like JT65 and WSPR, as well as SWL work. My IC-735 is capable of 100W but I am using the transverter output at -13 dBm, buffered to +13 dBm with three Motorola MWA hybrid amplifiers. The antenna relay from an old Motorola Mitrek mobile radio serves as a T/R relay. At that level I can WSPR all I want (though I don't actually transmit 24/7).

The Hustler is being used with the low-Q version of the 15, 20 and 40m resonator coils. On 10m it will resonate without a coil when extended with a surplus Larson VHF mobile whip. On 30m I am using the 20m coil, but with the Larson whip inserted in place of the 20m whip provided with the coil. ERP on 30m is probably under +5 dBm owing to coil loss, mismatch etc. On 80m, my ERP would be so small I haven't bothered trying, and anyway the IC-735 output is not very clean there. I have not been able to work any CW QSOs with the WSPR transmitter -- just too weak I guess.

I love this very simple antenna. It is a thin wire in a rough square in our small back yard.
Last 24 hours it received spots from 0-9.600 km in 11 bands: 1,8-3-5-7-10-14-21-24-28-144 MHz.
And my Tx was received from 0-7500 km in 9 bands: 1,3,5,7,10,14,18,28,144 MHZ. All from a FT817-ND on 2 Watt output.
I use a simple ferrite core balun with 11 double windings for converting coax to the loop.

Timestamp Call MHz SNR Drift Grid Pwr Reporter RGrid km az
2014-05-13 19:22 R2DDX 18.106098 -19 0 KO94cp 5 PE3ES JO22da 2249 277
2014-05-13 19:18 PE3ES 18.106097 -20 0 JO22da 2 R2DDX KO94 2299 69
2014-05-13 19:12 PE3ES 18.106154 -11 0 JO22da 2 OH8GKP KP24rt 1864 32
2014-05-13 19:08 R2DDX 18.106097 -20 0 KO94cp 5 PE3ES JO22da 2249 277

Just a note for anyone interested for WSPR on 70MHz, I will be QRV on 16/17/18 May 2014
from JO00EW to do some tests.

KH6UL WSPR beacon up and running as of 082014Z May 14.

Based on Gene Marcus Arduino Mega 2560 & DDS60 WSPR/QRSS Signal Source design, with 0.2W, 160 - 15 meters, 0.1W 12 & 10 meters, into the West antenna of the 21 Element Vertical Log Periodic Rosetta Array.

Feed: 300' 1 5/8" Heliax

Antenna gain:

12 db @ 0 degree
5 dB @ 90, 270 degrees
0 dB @ 180 degrees

See for RMS / NAVY MARS article

Now is ea8/dl9xj finished from Tenerife. I hope in 5 -6 months a new acticity from Canary islands. I will work from my home qth, but the conditions are not good (inside city and only a ATAS 120 on a balcony)
73 Walter

Someone located in "KN95MA" and transmitting WSPR on 20m is using my call sign. the output is set to 5w and they seem to transmit every 10mins or so for about an hour in the afternoon.

Please check your settings and make adjustments accordingly.

Thank you

Dan (M0TGN)

[UPDATE 1715Z 9th May: Test now ended; Many thanks to G3NR, G4FKK, F5MFO, G4FFC, and those who I didn't manage to spot, for beaming their 2m signals in my direction.]

If anyone wishes to try a test transmission, I'll be receiving 2m WSPR for the next couple of days.
Locator JO02ac, near Cambridge, England. Dial frequency 144.492 MHz.
David G0LRD

I've made a blog entry about this activity here: