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.

Hi all,

unless blocked by higher priorities, I will perform my very first tx tests next Sunday in the morning from JN53 (portable operation).

Current plan is to use first a ground plane antenna (approx. 7.30-8.30 UTC) then a rotatable dipole (approx. 8.30-9.30 UTC for the N-S direction, 9.30-10.30 UTC for the E-W direction).

The G0UPL Ultimate2 beacon kit will be used for transmission, continuously running following sequence of modes/frequencies, with callsign IZ5WWB:

WSPR 28126,850 kHz
QRSS (FSKCW) 28000,850 kHz
CW 28280,800 kHz

After days and days of a sad propagation 160m comes alive. And how! there were exactly 760 DX spots between NA and EU from 09:24z(11/28) to 08:22z(11/29). The last similar event dated of October 13 with 350 dx spots "across the pond". DX Stations were: WB5WPA, K9PAW, K9YWO, K9AN, W3PM, N2NOM, VA3MW, KC2STA, G8DYK, G8HUH, G3ZJG, G8JNJ/A, PA0O, PA0HCK, ON7KB, PA3MET, PE1MPX, PI4THT, OZ7IT, DK6UG , F59706.

OK, just two days of experience with WSPR.

1. On 20 meters with 1 watt and a Miracle Whip INDOORS, pretty cool what can be accomplished.
2. On 30 meters with an outside end-fed half wave wire at 20 feet high horizontal, 0.5 watts, very impressive.
3. Not much results on 20 after sunset.
4. 30 is ALWAYS open to somewhere.
5. The database queries are cool.
6. Is there any analysis being performed on the data, like what was done with PropNETPSK several years ago?

I have been using a Magnetic Loop Antenna from Alpha Antennas and I'm very impressed with the performance of it. I have this inside my shack and it has done almost as well as my full wave 160 meter loop at 40'. Check out my spots for the past week 11/27 on 20 meters.

Just want to advise our 160m operators that I currently have up a 160m Beverage antenna and a 1/2 wave Inverted V dipole.

As the Beverage is an RX only antenna, what I am doing is running the Inv V for the USA guys (TX/RX) until I head to bed, then switching over to the Beverage to run RX mode till sunrise.

du nouveau ici
j'ai un KX3, vraiment un super tx et biensur en QRP

je vais le servir en wspr sur 160 m
soit avec 5w ou 2 w

via un signalink usb et le cable pour le KX3

le tx chauffe vite a 60 c hi

merci pour tout rx de votre part

noel arrive bonne fête

hb9hfr michel

I have been running 1mW on 40m WSPR for the last couple of days and getting spots from over 2000km away. Such has been the success I have decided to go lower in power and will be going down another 10dB to 0.1mW. From the reports so far at the 1mW level I think I can go much lower still, but I'll try it in stages.

Well, I just got my Raspberry Pi to listen to WSPR stations for me.
Wahoo! Now I get my laptop back for other things.

I like to get a statistical feeling about conditions on 80m.

What i need is a receiving and a transmitting station which are not changing.
It will work all day for about 8 weeks.
After that i make graphs of the signalstrengths over that time.

This Saturday, November 16 Australian radio amateurs will launch a HF high altitude balloon, PSB-5, transmitting WSPR, JT65, THOR and Slow Scan Digital Video (SSDV).

I'm currently transmitting on 20m, 15m and 10m using 1mW.

So far, my best spot is 1,065km, equivalent to >1,000,000 km/Watt ! (Thanks to SWL Dan I1-12387)

2013-11-13 07:28 G0LRD 14.097055 -23 0 JO02ac 0.001 I1-12387 JN44ln 1065 138

My Ultimate 2 QRSS transmitter ( continues to work great. I just received and assembled filter modules for the 40 meter and 20 meter bands, in addition to the 30 meter filter I already had. I'm picking up lots of WSPR reception reports on both bands. I also updated the firmware to the latest 2.06b version (using my Bus Pirate to program the PIC chip in-circuit). The new firmware allows transmitting on up to 3 different frequencies and modes.

I've been running WSPR on 10m for a couple of days using a Hans Summers U2 transmitter feeding into a Sirio Gain Master aerial which is a vertical dipole.

The transmitter doesn't generate much RF on 10m - I set the power figure in WSPR mode to indicate 50mW although in reality, it's probably less than that. The needle on my Daiwa NS-660P with 15W FSD is moving barely a needle width from the bottom stop. If I had to estimate, I'd say I'm running between 20mW and 30mW through 20m of RG213 into the aerial.

This morning I was very pleased to see the following spot:

I've been very surprised by what I've heard on 160m this past week.

I heard VK2KRR this morning, and VK6DZ on the 7th, 10th, and today.

A few years ago, I remember seeing my cw skimmer decode a vk6 station on 160m. Up until now, I thought it was just a bad decode or some harmonic from another band on the sdr-iq.

I'll be listening on 160m from about 0400-1330 for the next 4 days. 12th through the 15th. Hope to get some more VK decodes and add them to the list at the end of the week.


160 METER WSPR-15 WILL BE TRANSMITTING FROM 22:00 UNTILL 02:00 UTC 11/9&10/2013.

Hello all,

We did put up a 100mW Softrock 14 MHz WSPR beacon PI4R at our office, feeding a FD3 windom 1.5 meters above the roof of a 7 storey building. 100mW, that's the same output power as a WiFi accesspoint here in Europe.

The reports you guys give to our beacon are plot in real time on an azimuthal map centered around our QTH. This display is put in the corridor of our office and shows each morning that our signal reaches Australia (18.000km) and each afternoon into central USA (8.000km).

73, Ben PA5BW