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.

Rare Haiti station on 160m wspr heard by all Europe:
2018-10-07 03:32 HH2AA 1.838099 -22 0 FK38 5 OZ0AP JO65eg 8042 37 1
2018-10-07 03:32 HH2AA 1.838100 -27 0 FK38 5 DL1SEH JN48pq 7922 44 1
2018-10-07 03:32 HH2AA 1.838092 -25 0 FK38 5 PA5GB JO33kd 7708 39 2
2018-10-07 03:32 HH2AA 1.838099 -28 0 FK38 5 LX1DQ JN39cq 7688 43 1
2018-10-07 03:32 HH2AA 1.838101 -24 0 FK38 5 F59706 JN07th 7365 46 1

Just got one set up for WSPR reporting, will set another up for public access soon.


My name is Marc Call F5SHN

124.5' of 12 AWG solid copper clad steel wire, sloping upward from about 10' to 30' in the direction of 315 degrees (Nort-West), using a Balun Designs Model 9135sw 9:1 Unun, connecting with 120' of LMR-400 Ultraflex Coax cable.

It's hard to see the copper wire that extends 125' away to the top of that large tree in the center of the picture.

Not shown: Balun Designs Model 1116du 1:1 Maxi Choke Balun and Ameritron ATR-30 tuner.

I'm playing around with the data from two months I downloaded from here. At present, I'm just familiarising myself with the stuff. Here's a table of the mean signal strength reported by Reporter. It varies hugely, and it might be interesting to investigate why. I have cut out those reporters with less than 100 entries.

Here are the top few in August 2018.

Reporter/Average report dBm/Number of reports :

2018-09-09 11:34 WA1ES 14.097098 -21 0 EM56wl 5 G4ZFQ IO90ir 6757 46

I am registering a misuse of my call sign today. I have not done any recent testing on 20m. I have not transmitted on any band today 2018-09-09.

I would hope this is either a database corruption or other user error.

Please be advised I will continue to monitor for any other occurrences of my call sign use.



The gap of about 9 s between the ends of WSPR transmissions and the start of the next enables noise level estimates within the 1400-1600Hz audio band that can be used with a passive software-controlled switched delay-line, attenuator and combiner system to provide very useful noise cancellation.

An outline of the approach together with examples of the noise cancellation achieved at G3ZIL on 40m using a pair of inverted V dipoles with their apexes at just 5m is provided in the following pdf.

New to CW. Listening is clear but still not sure if transmitting. Now trying tuner but I fear antenna still not up to transmit yet. Using ubitx QRP radio on 40m. Hopefully I will get a hit on a wspernet soon. Antenna work first it looks like.

Northville MI

Now to figure which software to download and install so I can use this/these mode/s with my Yaesu FTdx-3000. I do have and sometimes use Ham Radio Deluxe. I have downloaded WSJT-x. It appears to be "hearing" stuff as evident in the waterfall display. So far however, no decode is evident. Maybe someone can direct me to the next steps and/or point my browser to a step-by-step instruction set.
Thank you

Replaced the reception endfed antenna for a mini whip antenna at 5m height. The SDR waterfall display seems much cleaner now and signal to noise level is improved.

1st try was OCF at 55'. Next is Fan dipole at 40'.

Introduction: The Kenwood TS-590 and the Icom IC-7600 have a USB port which can be used transfer the audio signals to and from the radio. Other transceivers without a similar USB connection may need an external data interface device with built-in USB Sound Card such as the ZLP Electronics Data-Link, MiniProSC or Pro3 data interface from G4ZLP or the Tigertronics SignaLink USB for example. I have previously used a Tigertronics SignaLink USB with my Icom IC-706mk2g. I now use the excellent G4ZLP Data-Link with my Yaesu FT-891 (see my separate post for those settings)

Icom IC-706mk2g with Tigertronics SignaLink USB

Drivers: Firstly I installed the SignaLink USB as per the Tigertronics instruction manual. Installation depends upon the Operating System being used but everything is described in detail in the manual, on the Tigertronics website and downloadable manuals.

The laptop (Windows XP) shows the SignaLink as USB Audio Codec which can be accessed via the sound card settings and progams that require them, such as WSPR.

Kenwood TS-590 Set Up

Drivers: Firstly I installed the Kenwood virtual COM port drivers (Silicon Labs C_210x USB to URT Bridge) and the ARCP590 radio control program onto the old XP laptop - not strictly necessary for WSPR, but I thought it would be useful for other occasions.

In case it's helpful to anyone, here are the settings that I find work with my Yaesu FT-891 and a G4ZLP / ZLP Electronics Data-Link USB Sound Card. I would think that this will be much the same for other USB sound cards, such as the ZLP Mini-ProSC, ZLP Pro3 and SignaLink USB.

The main puzzle that I had was finding the correct RX and TX BFO settings. This is 1500Hz. Data Mode is OTHERS Data PTT will be DAKY and as the sound card is connected to the rear of the radio, Data In Select is REAR. Data BFO is USB (upper side band). Power as low as possible - 5 watts.