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.

Today I modified my 6-band homemade SDR receiver to get a sampling clock from an OCXO. I also put WSPR-15 decoder running on 160 meters to see if there's any activity. At least the frequency stability should be good enough now.

The 20m mobile Am-Pro whip has arrived through the post, the next WSPR test will be to see how well it radiates.
Not expecting much but it will be interesting to see what is possible.

I've just finished work on my 200mW WSPR-beacon based on Arduino/AD9850 DDS/HD44780 LCD. All details like source-code, C-libraries, antenna design, schematics etc. can be downloaded from here:

http://dl1duz.darc.de/Page14.html

While there are things I like about each of the three software packages available, SDRuno, HDSDR, and Console V3, I find myself constantly going back to Console V3. SDRuno is very, very, complex and I don't feel handles the digital signal as well as Console. To be fair, I am in a very high QRN environment and it seems that the noise is "tricking" the threshold points and constantly making the overall gain reduction jump up and down.

After hearing a discussion on our local repeater regarding the WSPRLite device, and with how much I like WSPR, I immediately ordered my WSPRLite box from SOTABeams. Ordered with the USB Cable, a SMA to BNC adapter. The order arrived next business day. Yippee.. Set up with a spare Razzy Pi 5 volt USB power supply and my G4TPH mag loop tuned for 20m I was up an running in no more than 15 minutes.

What a revelation... No need to run my 817, Surface Pro, ISOTerm isolation unit and a load of 12v Gel Batteries.

I cannot recommend the unit highly enough!!!

2017-02-06 18:28 PA9X 5.366188 -26 -2 JO21ev 1 VK6XT OF86td 14438 96

Hi everybody

if someone is interested - I've build a spot extractor for long-term data analysis.

Have a look at http://dl2sba.com/index.php/funk/wspr/282-my-wspr-collector

Keep in mind - it is not intended to replicate the WSPRnet database - only for spots related to me as transmitter. I found, that polling every 5min for my new spots is sufficient.

//Dietmar, DL2BA

Still running with the raspberry pi zero.
On 3.5 , 7 and 14 MHz with a 9 meter wire after a endfet connected to the pi.
giving a good indication of dx for low power.

So I finally worked out the kinks. it seems that WSJT-X likes to put my FTDX3000 in USB-Data mode for JT9/JT65. But for WSPR it needs to be in USB mode. I'm not going to admit how long that took me to figure out! Finally receiving WSPR on multiple bands, Now to try to TX and see if anyone can hear me!

DXplorer.net is a handy tool for charting HF propagation. The picture shows 30m over the last two days. The disturbed conditions last night are clearly visible as is the negative effect on today's propagation. All WSPR users can use DXplorer.net on 20m - 160m.

The WSPRlite arrived from SOTAbeams today. Why I have never explored WSPR before I do not know, so I thought it was about time. I ordered a unit at the weekend and here I am!

The five frequency channels that US amateur radio operators share on a secondary basis with US federal government users on 60 meters (5 MHz) pose unique requirements for CW and digital operators. As explained on http://www.arrl.org/60m-channel-allocation, US radio amateur emissions on our 60m channels must be precisely centered in the center frequency of each assigned channel, that is, 5332.0, 5348.0, 5358.5, 5373.0 or 5405.0 kHz.

Pages