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 trying this mode for the 1st time today everyone - please forgive me if I mess things up!

Did a short write-up here about my test.

Every so often in life there are moments that you get to treasure.
Sometimes it takes a little time for the significance of that moment to sink in and be recognized or fully understood.

I like many Amateurs operate a very modest WSPR station in the suburbs of a large city, with a wire dipole @ 7.5mts strung between the house and a tree in the backyard. The receiver is an SDR-IQ and a Dell computer running Windows XP.

Today I see a station that I have spotted a number of times in the last week about the same time each afternoon.

Hi all.

I was just thinking that it would be really handy to know, if someone is running a directional antenna with WSPR, what direction they are pointing.

It would be very handy, especially for people using 10m, 6m, 2m to know which way people have their antenna facing.

I was thinking that, for example, when u see a stations call on the WSPR map, that u click on their call and now it brings up data such as this "VK6DZ Tx 20% 50.294520 37dbm", that it would be handy if something basic could be included like -

VK6DZ Tx 20% 50.294520 37dbm NW


K6PZB and I have been running WSPR on 6M, 2M and 432.3 MHz lately. To do this we both operate with external OCXO master oscillators on our IC-706 WSPR radios.
Our stations are about 5 miles apart but K6PZB is located on the wrong side of a hill on the western end of this E-W path. This makes it particularly interesting
for examining Doppler from aircraft flying in our region.

Learned about this from Ernie/W4HLN looking forward to it!

I left my station on 80 meters last night before I went to bed :-)

After my antenna is falling down i was operating only on a G5RF. But now i am back normaly. At the moment I run as first rig a TS480 as second rig a IC 706 or FIFI SDR. I can switch 10/15/20 Meter of a 2 El. Quad or a indoor G5RF on both rigs. I tx only after work but will run WSPR except I operating “normal” Modes.

Yesterday I ran a test setup with one of my Flex radios on an 80-10m OCF, focusing on 10mtrs - it worked like a charm.

Today I have switched to another rig running into a 80-6m Butternut vertical. The latter setup here will probably be running more or less when the station is not used for other purposes. I obviously have interference issues using multiband antennas on very little real estate.

The system is controlled on site and remote so I can change band at will, but I will probably focus on 10mtrs the next months

Our club station, K7UEB, runs a webSDR:

I recently setup WSPR to use these SoftRock receivers as well. They are connected to a Hustler 4BTV vertical up about 35 feet. We intend to keep WSPR running on 20 and 40 meters 24 hours a day, 7 days a week.

Can anyone direct me to a circuit diagram etc, for a low power SWR/milliwatt meter (max 0.5W). I'm currently using a WELZ SP-15M SWR&PWR meter on the 2.5W range, but it's very difficult to judge powers around the 100mW level. I found an article on an accurate milliwatt power meter, but it's an offline device, and I'd like to be able to measure the output power as it goes 'up the pipe', to reassure myself that what I'm seeing is what I'm actually putting out.

Colin Richardson

Hi all wspr followers. I have been mounting a 30m band, Stand alone WSPR beacon.
It includes:

- Main Board (W3PM design. Universal VCXO WSPR Controller with PIC 16F628 software).

- Colpitts Crystal Oscillator + Power Amplifier 100mW (30m QRSS hanssummers Kit, with litle mods).

- GPS (to update grid and clock automatically)

It need only 70mA in stand by, and 200mA in tx mode. Power suply 5v-14v.
More info in:

VK2XN/5000 = Flex 5000 into a double size G5RV inverted V, apex at 20' sloping to 5" above ground at ends.

VK2XN/1500 = Flex 1500 into a 3 element tri band yagi 5' above ground.

Both radios running on 10 metres for now.

Almost every time there are 2 received signals with less than 3Hz separation the radios will decode one each.

The things one does on a rainy day.....73


I do not think that anybody has sent fake reports. More probable is that F1FZH received your signals on any of your allowed bands, but forgot to set the band in his own WSPR Software and left it to the default 10.1 MHz. That happens even to me sometimes.
73, Karl DK5EC


I just noticed that there is some activity reported for my callsign on 30m ; since I'm not allowed to transmit on 30m (only 10m, 20m, 40m, 2m and 70cm) and I've only been running WSPR on 10m and 20m this morning I suspect someone has setup my callsign in his/her WSPR software.

If you are running WSPR on 30m could you please check what you've set up in your parameters?

These are the fake reports:


after my PA0RDT died (RIP) I put the 12m wire with DIY unun on my good ole Yaesu FRG-100. With this piece of wire I got a new record of distance:

2011-10-04 09:52 VK0TH 14.097089 -20 0 QD95lm 5 DE8MSH JO43kb 18058 278

I'm happy about it. Happy about this, too:

2011-10-04 09:52 WA2YUN 14.097129 -26 0 RK39hh 5 DE8MSH JO43kb 11687 346

It' a new WPX for me :) Yiiieeehaaahhh... WSPR rulez again!

Short video I created from WSPR map screenshots of 24 hours of recent 10m activity. (10/02/11 14:00UTC-10/03/11 14:00UTC). Interesting to see propagation conditions change and how paths open and close between continents.

I also placed a link the the video on the WSPR Facebook page:

With my IC7600 i changed the bandwith now to 1 khz at 19.30z

Can any one tell me why these stations frq's are not the same as the one posted
in the activity window?
1916 -10 0.3 14.097117 3 G4CWX IO81 30
1916 -14 -1.7 14.097083 1 G6LTT IO91 37
1916 3 -1.8 14.097073 1 LA3LJA JP53 33
i have noticed as i go up frq's so does the the gap?????.
73 John

Just an update on the server problems at After trying several different kernels from our virtual machine hosting provider, I believe we finally have one which does not suffer from the frequent crashing problems which plagued this site for the last several months. I hope I'm not jinxing it by announcing it, but the site has now been up for 11 days, and the previous record for the prior month was 3 days. Thank you all for your patience!