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.

For those that may be interested, I have been playing with very low power levels lately, as low as -17 dBm or 20 uWatts. Since WSPRnet can only be set to a low power level of 0 dBm, I am using "/" to designate lower levels. IE "/10" for -10 dBm or "/17" for -17 dBm.
So far I've been able to get spotted occasionally at -17 at distances of about 700 - 1000 miles on 20 M. Amazing mode!
John / K5XL

since 18th of Dec I'm running a Red Pitaya as WSPR RX using Pavel Demin`s WSPR transceiver image.
Antenna is a Hustler 4-BTV 4 band verticle trap antenna.

8 bads scanned simulaniously incl. LF and MF. Today had my first LF spots :-)

Now 19th of Dec I added an ultra low noise amp from SV1AFN ( or -> HF pre-amplifier )

Vy 73 de Hartmut / DK5LH

"to be there at the right time" to hear the first and only one tx of Qatar station on 160m, congrats guys !!:
2016-12-18 20:56 A71AM 1.838102 -25 0 LL55ki 5 G0KTN IO81ti 5312 317
2016-12-18 20:56 A71AM 1.838099 -23 0 LL55ki 5 G8LCO IO91vu 5179 319
2016-12-18 20:56 A71AM 1.838099 -22 0 LL55ki 5 G3WCE JO02pt 5110 320
2016-12-18 20:56 A71AM 1.838103 -23 0 LL55ki 5 LA3JJ JO59bh 4908 331
2016-12-18 20:56 A71AM 1.838104 -16 0 LL55ki 5 ON7KO JO21ce 4865 319

I have a WSPRLite which I am using for /p antenna experiments. I am very conscious that if we all just transmit, there's no-one to receive the signals so try to run WSPR 2.0 whenever I can. I have an excellent antenna for 30m (19,000km on 200mW!) and a Hex on the high bands. If you want me to run wspr in Rx mode for your experiment, drop me an email at {my callsign}
Geoff ZL3GA

Today just cranked up my simple home-built 40M WSPR Tx running 23dB into half-size G5RV, but so far no takers after over one hour at 100% duty cycle. identifying nearly two hundred spots during the same period and the band looks to be very active. So I can only assume that I have issue(s) with my Tx and/or antenna.
Anyway, if someone does hear me then please send me an email to:

I've just been licensed since Aug 2015, although ham has sort of been on my radar since shortly after earning my Electrical Engineering degree and beginning a career in telecom a couple of decades ago.

After officially joining the ham ranks, I've been become aware of the schism between the Big Dogs (1kW-plus transmitters, "shouting louder makes everyone hear your better") and the little pups, those of us who appreciate finesse.

Thanks all for spots on 160m

I have just posted a simple VOX circuit for the FT-817 for WSPR control. No serial port needed. USB only.
Seasons greeting all

It is with great sadness and a heavy heart that I have to inform you about the passing of my friend and yours Jürgen Olsson, DL2ZQ on the 24th November 2016 at the age of 68.
Jürgen, licensed 1966, was a real WSPR enthusiast and member of the WSPR community since the very beginning.
He held several lectures about WSPR and introduced me to WSPR 4 years ago.
Jürgen is irreplaceable. Nothing but good memories are held by everyone who ever knew him.
He will be sadly missed.

What a pleasant surprise ! 630m was very active in a low noise band:
2016-12-13 01:56 WG2XXM 0.475712 -25 0 EM15lj 5 F59706 JN07th 7781 46
2016-12-13 02:08 WD2XSH/17 0.475646 -25 0 FN42pb 2 F59706 JN07th 5540 58
2016-12-13 03:00 WG2XIQ 0.475790 -29 0 EM12mp 5 F59706 JN07th 7991 45
2016-12-13 03:56 WG2XJM 0.475770 -28 0 EN91wr 5 F59706 JN07th 6206 54

F1AFJ/1, G0LUJ/1, G3XKR, G8HUH, LA2XPA, G8LCO, PA0RDT, PA7EY heard also Part5 license stations,
73, Patrick

Got my SGC-230 out of storage and repaired an inductor that had broken loose from the PC Board. Works much better than the inline tuner.

Testing 40 meters bazooka antenna with rtl_WSPR daemon in Raspberry Pi

More info in:

Thanks to Patrick, ON4CDJ for the information via Twitter.

As noted over in the WSPRNET forums, loading the map display has been
throwing up occasional errors, usually moaning about Javascript.

There is also talk that Google are trying to promote a charging
scheme for access to the map.

Just curious as to why wsprnet needs to access Google maps at all ?

Surely a generic world map jpg could be used ?

73 de Andy

New test in salt water from my sailboat. EA3FLN /mm wspr
Ultimate 3S TXCO 30m 1x bs170 @5v + QLG1 gps
Antenna is the back stay 12m lenght , UNUN 1: 9 and Z match antenna coupling. Power is about 235 mw on 30 meters.
Hope to see your spots.