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.

Just upgraded the tall vertical from 11 Meters to 14 Meters. Currently operating with 8-4.5 Meter radials and 8-10M radials.

Next improvement will be to extend the 4.5 Meter radials to 10 meters, for a total of 16 10 Meter radials.

Does WSPR employee an algorithm that limits the time that any one station can operate for a period of time?
I notice at times when I fire up my station to operate on WSPR that it just indicates "waiting to start" indefinitely. I then wait for a couple of days and it works just fine. (WTF is happening ???, over) de N9UYC

Starting at about 1715 UTC on 06/30/2018 I will be switching my RX frequencies from the HF to Vhf/UHF bands.

My 2017-2018 season on 160m WSPR is now over.
Some general data:
- best season session was Feb-01/2018 with 416 unique NA-EU dx spot (All Time 435 Jan01/2017)
- number of session with NA-EU dx spot: 318 nights (317 previous season)
- 455 stations (NA+EU) were able to listen to a station on the other side of the Atlantic (484 previous season).

The antenna now in use on 20m is a half wavelength of wire (14mhz) formed into a square 8 feet (2.5m) on a side and fed at the bottom horizontal run via an SEM Z match.
The idea is to experiment with the high angle of radiation from this arrangement (mostly directly upwards, the initial results show an extremely efficient method of covering almost any distance out to 2000 km with the present band conditions (mostly Sp/ E) with some surprising DX results too, Japan, Alaska, Antartica, Western Canada and the United states and South Africa.

My New website has my blog and information.

Great kit got it running with GPS and a RTC kit from QRP-Labs.
ran a 40m Test tonight on 500mW

Go here :
to read some more on my WSPR receiver but also for some observation on the effect of the local noise level for WSPR reception.


It was getting time to upgrade from the fine radio ic706mkiig, I was getting good signal reports and all but after researching new radios I settled on the ic7300. already having much better reports from who can hear me...look to enjoy.

Transmitting = 66 foot end fed from 25 ft above ground to a deck 8ft above ground back to the building and back to the deck in a zig-zag pattern to avoid overlapping turns and parallel wires.

Receiving = a 3ft diameter amplified loop with a send/receive switch box.

Rig = Yaesu FT-450D

Note: If I use the end-fed for receiving, my noise is S9. On the amplified receive only antenna the noise is S7.

I was first licensed in the 1970's but went qrt for about 25 years when I started my family but now my son has got married I've got my shack back :)

I've always been interested in qrp and aerials so WSPR is brilliant for me and I can leave the radio to do its thing whilst I do other stuff really enjoying the return back to amateur radio and wreaking havoc with my 5 watts :D

Hi all.
I just released my WSPR Receiver for sale on my Webshop.
It is a complete one-band receiver built in box trimmed and ready to use.
Use this instead of tying up your regular Ham tranceiver for receiving WSPR.
Just plug in between Antenna and computer, can even be powered from a free USB port.

It takes about 0.4Watt of DC power, has a 10ppm crystal, about -127dBm (0.1uV) sensitivity measured for a 3dB S/N ratio in 500Hz bandwith.
It is frequency calibrated against my Rubidium standard before delivery.