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.

I was spotted @13h20 by CX2ABP using .002w and 3elts/tribands beaming 0 degree in the 20m.The distance is 9217km.wx was and still rainning this monday 9 december.Tnx to Joe/K1JT.
Nw i m txing with .001w to see the best distance i can reach with the beam always to 0 degree.

Ok all.

You clicked on the link to see if I had a blog entry, well here it is!

I've been a ham since 1996, I am currently a General Class.

I love the digital modes, psk31 etc, etc.

I'm gonna download the software for WSPR tomorrow (it's LATE here ...!) and give it a try. Maybe push the limits with 1 watt ....

Best 73's to all,


I'd sure like to see more activity on these bands. Any takers?

I am simply floored at how effective MEPT_JT/WSPR is at conveying data/signals at low power over long distances. Today being no exception, HA5MRC, the Muegyetemi Radioklub in Hungary received my 250 mW signal...for a nice miles per watt of 17752 miles!

Not bad for a quarter of a watt into a low antenna.


This is really fantastic my signal spotted in VK thanks VK6POP and VK6AAL
all with 5 watts and a random longwire not even very high!!. This morning spotted on east coast USA with 1 watt. It's got me thinking about antenna radiation angles and propogation all over again!!

Who needs a KW and beam

Brian G6HUI

Well it is not many from the whole world.

Seven stations would like to run WSPR on Linux. Of course like all surveys the number is only representative of the users who looked on this site at the Blog pages over the last two days.

I did also dangle a carrot on QRSS Knights and got a response from a N8 station. Then there is Google which has brought forth nothing.

The whole circle is self defeating, an O/S with no software applications for Ham Radio will not take off. If there are only seven people interested then who is going to package software for the O/S?

There is much to be said pertaining to the expected performance of a PC that is to run WSPR/WSJT7. I have been running both of my Windows PCs (one is a 500 MHz PIII with XP Home, the other a 1 GHz Athlon with Vista Home Basic) for a few days now simultaneously running WSPR on both machines. I am amazed at the difference in captures with the fast PC. Not only do I catch more WSPR beacons, but weaker ones as well. The Vista PC has been capturing beacons at -24, -26...and even -28 dB.

One disadvantage to using the Eee PC as an WSPR station - apart from the flakiness of its Linux OS - is that its power supply is a switched mode wall wart of the worst sort, a wideband noise and wandering warble generator. It's made in China and is rated at 9.15V 2.3A output. I don't suppose it will be easy to find a noise free alternative.

Well, in one sense the 10-meter Special Activity Day was nearly a complete bust; but in other ways I found it quite interesting.

I think we had around 20 active stations, most of the time. Not surprisingly, there was very little propagation of any sort, anywhere in the world. About 700 spots were posted, but most of them were at ground-wave distances under 150 km.

However, VK6POP copied the big 20-Watt signal of T61AA several times at 8913 km, for the DX record. Interestingly, nobody else copied T61AA at any distance.

I am personally interested to know how many people run WSPR on Linux and what Release, lets include WSJT.

1) I run Linux XXXXX but use Windows for WSJT/WSPR

2) I run WSJT on Linux XXXXX

3) I run WSPR on Linux XXXXX

4) I would like to run WSJT and WSPR on Linux

Are you a 1, 2, 3, or 4.
Are the number of replies going to be tiny and insignificant.

I have a sig blasting in here S7 or so, but no decode. I use Spectrum Lab to watch the pass band in real time and the sig appears to be a WSPR sig, and on 20 to 25% TX cycle, it is down low around 3.594022. Anyone copy this sig also?

73, Doug W7RDP

Can anyone tell me where to find explaination of the reports that are receive when running diagnostics with WSPR ver 1.01 and/or WSJT7.
"RX: 0 114 114"
"Socket error, Non- fatal" Which comes up regardless of whether the diagnostics are activated.

Hi to all.
I'm now of WSPR software. I installed WSPR 1.0_r1023 but when it try to receive (or transmit), an error occour:

AppName: wspr.exe AppVer: ModName: ntdll.dll
ModVer: 5.1.2600.5512 Offset: 0000108d

and the program closing..... How I can solve this problem?

I'm using Windows XP Pro SP3.

Best 73's de Andrea IK4WLU

I think we need a new protocol for database maintenance. From now on, please post all requests for database corrections to the Site forum. I had been getting some in email, some in chat, and some on the forum, and it's hard to keep track! If you post them there, I will go through and do the manual fixes occasionally and reply to the threads as I do. Thanks!

I will usually leave WSPR running in receive mode during the night here on the West Coast on either 80m or 160m.

I've done this for the last couple of nights on both 160 and 80 - there seems to be a pretty stable path on both 160 and 80 between VK7 and W6. Also a path exists in the hours before dawn to Wake Island on 80m. Despite WSPR not decoding or logging any spots, I also leave WSJT7 running in WSPR receive mode - WSJT decoded the signals from WA2YUN on Wake this morning at sign levels between -10 and -14 dB. Very impressive as all of these were with 5 watts on the sending end!