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.

sdr located in argertina band of 10 mts
locator GF05om (LU9DCE)
24 hours on air
antenna at 20mts
1/4 vertical wave
4 planes of earth
pc linux --> rtlsdr-wsprd

regards 73 !!!

I started experimenting with the WSPRlite from Sotabeams on the 25 September, running 200mW on 10Mhz then the 14Mhz bands, repeating the tests running 5mW. I am amazed and delighted with results.

Unfortunately during this time some one started pirating my call sign running 5W,the results showing up on my reports. Please ignore these transmissions, the WSPRlite output is 200mW max.

73 g3wxn.

Most ham fun I've had in years.

An Arduino Mega with a "Gowoops" GPS (for time discipline, and grid square calculation), controlling an Si5351 frequency synthesizer. This is a VFO connected to an antenna. Currently operating on 20 m. Typical day -- 33 spots from 13 different stations. What a blast!

Check out if you are interested in building your own multiband WSPR-beacon (AD9850 DDS, HD44780 Display, remote GPS unit based on NEO-6M for locator & time, Arduino-controlled).

test my time server any years

And really my first real confirmed radio activity since getting my license.

I have been very interested in getting my Raspberry Pi and RTL-SDR doing something for a while, but have had difficulty getting the right setup.

Using Raspbian Jessie, I finally figured out how to pipe audio from rtl_fm into wsjtx using the ALSA Loopback driver (modprobe snd-aloop) along with the new 1.8 RC3 release of WSJT-X, and lo-and-behold, my waterfall display started showing activity.

...If you've not heard of this wacky's run by NY7N and involves using an antenna made of bedsprings, 5 watts and contacting New Zealand or Australia. My setup is in the prototype stage, so what better thing to test with than WSPR? If you hear me pinging away, let me know. (I'm hearing stations, but no confirmed contacts as yet) Testing on 40m, 20m, and 10m. Thanks in advance...



Made my first WSPR contact this evening. 5w on an FT-817ND with a Chameleon Mil Whip with extension on a 25 foot tripod. Time was around 7:30 pm central time. I was a little excited

Yesterday I started running WSJT-X WSPR using my ICOM-7300 at 5W feeding a multi band OCF dipole on a ridge 400M above the Pacific with a clear view to the horizon to the north and east. I believe I may be the only SW WSPR beacon currently in operation on the Hawaiian Islands and have spotted a couple of 40M ZU beacons 12000Km away. I am logging many more spots than I am receiving so even though I measure <2:1 SWR on most bands, perhaps my transmit coax losses are higher than one would wish. Hopefully my location adds a new set of propagation paths to the database.

Finished the home brew mag loop today, 8 1/2 foot main loop, vernier drive capacitor. Testing indoors with 200mW. Be interesting to see how it works, so far it’s been heard on 20M in Germany on a very flat band late evening.

The Maritime Radio Historical Society operates the historic coast station SAN FRANCISCO RADIO/KPH, with a transmitter site in Bolinas, CA and a receive site on Point Reyes. We operate using all the original equipment in service at the time the station closed as a commercial coast station in 1997. Beginning today, we will be running WSPR, receive only, and posting our spots to the database. We plan on focusing on the new amateur MF allocation in the USA.


now transmitting using an Ultimate3S and multiband LPF module, and 5w PA (set to 1~2 watts) at 80/40/30/20/17/15/12/10 meters; antenna is a longwire.

Location GG87 (Rio de Janeiro);

73 de PY1ZB

Timestamp Call MHz SNR Drift Grid Pwr Reporter RGrid km az

2017-10-09 10:48 VK2DVM 144.490500 -26 4 QF56og 20 VK3DXE QF21nv 732 227

Just looking through my spots: 2017-10-08 07:16 VK2EFM 3.594124 -27 0 QF56pn 0.2 EA8BFK IL38bo 18505 253.
EA8 long path on 80m with 0.2W into a low 160m OCFD.

Hello all,

I realized it's quite difficult to find precise information about defined WSPR frequencies for all available bands. So I wrote a list for all bands, here you go! The TX frequency center is always +1500 Hz above the dial frequency.

last update: 2018/01/18
----------Band----------Dial Frequency----------TX Frequency center(+range)--------------