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.

WSPR is so cool that it is (but is becoming "was") my favorite mode.

Real propagation science is done, real antenna measurements are made. A quick place to look to see if a path is open to a DX location. A great way for city-bound or HOA-limited hams to see real world-wide contacts.

And, it is (or was) a nice place to recommend for newb's as well as a place to re-invigorate interest for the old-school ham.


Ken here from Hillsboro, Oregon.

I'm still fairly new to Amateur Radio and related web systems.
I'll be reading up, but any suggestions are welcome.

This is an inexpensive project based around a partially built $21 SoftRock Lite II receiver and an $8 Si5351A module. The transceiver provides single band operation between 630 and 10 meters. There are many transceivers in the marketplace that provide good performance at a reasonable cost. However, I enjoy building and experimenting, so I documented this project to share with those who have similar interests. Additional information is located at:

Gene W3PM

Perhaps in the future there will be an I/Q processing feature in WSJT-X. Until that time, I chose to use a dual op-amp I/Q signal processor. I documented this project to share with those in the WSPR community who enjoy building and experimenting. The project is located at:

Gene W3PM

For two days, a French Guiana station is working on 160m wspr.
OH2FTB Marko and PA3FYM Remco heard the FY Club station during night of Jan25-26 for the first time on 160m wspr.
By luck and surprise, i heard him one time in the evening of 26:

-2016-01-26 22:06 FY5KE 1.838099 -28 0 GJ35pe 5 F59706 JN07th 6961 38

Mostly spotted by NA stations.
F6CNI Andy is the only one EU station heard by FY5KE.

73 and GL, Patrick,

Today 27/01/2016 from JN56oo tx in wspr 144 mhz from 17:45 zulu to 20:00 zulu

73 de in3aqk

The SoftRock Lite II for 455 kHz IF operation provides an inexpensive but effective way to monitor WSPR activity on 630m. The receiver kit cost $23 USD from This is a software defined receiver that uses a 464 kHz local oscillator. After building the kit, measure the actual local oscillator frequency. In my receiver it was 463.936 kHz. Subtract the actual local oscillator frequency from the WSPR dial frequency of 474.200 kHz. Using a I/Q compatible program such as WSPR 2.12 or Linux WSPR 4.0 open Setup > I/Q Mode.

Active night on 160m : 406 dx spots "across the pond" in the data base, 30 stations in the round.
11 NA stations heard in EU: AK4GS, K9AN, K9PAW, KD6RF, KJ4YBS, N1LID, N1NCO, N2NOM, W9MDO, WB4JLD, WB5WPA
9 EU stations heard in NA: DF2JP, EA1CDV, G0LUJ, M6VPW, ON7KO, PA0LSB, PA0O, PA1RZ, RX3DHR
Best Rx stn: PA3FYM(11NA), F59706(10NA), KK1D(8EU), PA0LSB/rx(8NA), PE1OPK(7NA), N1LID(5EU), PA0O(5NA)
GL all, 73, Patrick

Today I tried to get somewhere with the Red Pitaya and his 10 mw output.

Since a few days the "map" is not displayed anymore, althoug all other info, as Database..., displayed well ?
An error message anounce "Server problem"

On my pc it works all well ....

73 ON7DY

We are now around mi-season on 160m. It's time to take stock of my RX Challenge between NA and EU (Jul15-2015/Jan12-2016)
Up to date i heard 38 unique callsign of NA station, 2 more than to the end of the previous season. What a great season ! my NA list is on my profile page,
I took time also to list all rx stations (133 NA+EU stations) to publish a high score list:

Finally got around to setting up WSJT-X to log to here. Usually active monitoring JT65 so though would give this a go. Very interested in propagation so this is a fantastic tool. Thanks to all those involved in getting the mode and this site up. Upgrading soon so hope to all so TX on this mode as well.
73's Darrin

I briefly used WSPR about 6 months ago. However, as I frequently operate JT65A/JT9, I found it a little tiring shutting down WSJT-X v1.5.0 and starting up WSPR v2.12 each time I wanted to change mode.

The other day, I found that WSJT-X v1.6.0 was available. So, I installed this latest version. Not only does this have quite a few improved JT features but extra modes - including WSPR.

So, now I can easily switch to WSPR mode when I am not using JT65A/JT9 on HF. Thank you K1JT and all the other WSJT-X developers. This application just keeps getting better.

Just finished the small wonder U3S from QRP Labs

abt. 200mW @ 30m

and do my firsts transmitting tests.