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 am setting up my 600M receiving station, using a small loop antenna, homebrew pre-amp and my HP3586B Selective receiver. I am also setting up a BC-453 receiver for 500kc as well. (Now you know how old I am) Hertz still sounds funny! The rest of my station is composed of several Swan transceivers, a Yaesu FT757, FT-60, and miscellaneous homebrew receivers/ oscillators/ and other projects.
I am limited in space for full size antennae below 40M, but have my 5btv 18AVQ for those.

More to come.....

Vienna, April 2nd, 2010

Six months after bringing V53ARC online, the second WSPR beacon in Africa got into service. 5X7JD went online today. The beacon is hosted by Jack, 5X7JD who is located in Masaka, Uganda.
Jack Dunigan, a US citizen, is permanently located in Uganda working for AIDCHILD, an organization with homes, clinics, and academies for orphans who are abandoned and living with AIDS. Visit, donations are very welcome.

Same as the Namibia system, the beacon was developed and funded by Gernot Frauscher, OE1IFM. Visit to find out more about the beacon project. The system has 1W output and cycles through 80,40,30,20,17,15,12 and 10m, so one can hear the WSPR signal returning every 16 minutes. Antenna is an HyGain Av 18VS multi-band vertical. The beacon hardware is an embedded system based on a PIC 18F2455 MCU, an Analog AD9851 DDS chip and a MOSFET PA with selectable filters. Time and location information are derived from an attached GPS receiver. This beacons will be available as a kit soon and we are looking for hosts in interesting locations.

Spent the morning setting up G5RV Jr wire antenna with my friends and tried WSPR 2.0. Received some false results on 30m:
0616 -21 3.2 10.140127 0 <...> JZZ8XZ 22
0630 -22 0.6 10.140131 0 <...> JZZ8XZ 22

Not too bad for the first try at all, I'll again later.

This evening I did use 27dBm, not 37 dBm. It was a mistake. I transmit with 500mW but the setting in the software was wrong.

G7LHS decoded my 50 uW-signal on 30 m over a distance of 1023 km - congrats! My equipment: FT-817, 500 mW into 40 dB-attenuator, lazy four-corner loop, twinlead-fed, 60 m per. , 8 m up. Amazing!
2010-03-26 08:02 DL9NEF 10.140295 -27 0 JN59ns 0.001 G7LHS IO83ri 1023 298

Today was quite a bit of fun. Having run WSPR yesterday, and leaving it at 500mW (via FT-817ND menu), I decided to try to reduce the power output by reducing audio drive. It worked (a no brainer). Interestingly enough, 15m was open to the US using 500, 200 and 100mW. When I dropped the audio to produce 50mW, the output was there, but I think I left it a bit late in the day. Will try again tomorrow to see IF I can cross the Atlantic on 50mW. That's about as low as I really can go using the current ATU power meter... fingers crossed. 73 to all, and of course, good DX.

My location really is EN61bn not EN62. (Whatta jerk. I don't live on a boat, moored off Wisconsin's shore in lake Michigan.)

Update: I found out how to edit account info and did so. However the location shown on my posts hasn't changed. Does something need to be recycled? flushed? reinitialized? By me? By someone else?

Attempted access to WSPRnet timed out. What is the problem???

The graphical display of WSPR shows the short path from stations in Europe to Australia in the morning (at 7 a.m. UTC) for the 30 m band. However, I am convinced that these contacts were transmitted via the long path. The error in the graphical display and the distance error of the data base of WSPR should be corrected.

Best dx 73 Mike DL1MMK

This line in the database makes my heart a little jump :-)

Timestamp Call MHz SNR Drift Grid Pwr Reporter RGrid km az
2010-03-16 15:50 DG9VH 7.040100 -21 0 JN39kf 5 VK7FGMH QE37na 16911 92

All with just 5 watts on 20 mtrs. wire under the house-top!

fantastic, what could be done with such a setup!

WSPRnet opens up the possibility to measure the efficiency of my magnetic loop antenna (I3VHF, Baby, 1m diameter, direction 330 degrees), which stands on a balcony. Radiation in west direction (up to the zenith) is unobstructed in contrast to the east, south and north direction, where the antenna is near (1-2m) iron concrete walls with a hight of 10m. I compared the reception reports of my station (DL1MMK) with DG7RJ (distance 20 km), who uses a homemade Dipole 2*9m at 7.5m heights in SW/NE direction.

Hi all. Phase 8 was completed sucessfully yesterday evening. Hope to find the time to continue with the rest this week. So far no big issues except some human failure ... hihi. I ordered a nice aluminium case for the kit and also a E-MU0202 soundcard.
Have a good start in the new week!

73s from JO61ei, Gregor DM1RG

Let's see what's happening...

I've taken over the living room table, set up the FT-817 and run the feeder out to my portable dipole in the garden.
It is all working! K9OHI, AC2C, IQ4DJ on 30m.

Clever things these computers.