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.

Been using the Yaesu FT-817ND with 2.5W into the 14AVQ vertical or the G5RV. Both these antennas are in my smallish backyard which is mostly taken up by two large Ash trees so the antenna elements are involved in branches and leaves. This compromises my signal somewhat but the station still receives and is received by other WSPR stations. Pretty amazing software.

Hello fox

I mounted the cushcraft R5 on the roof and it improoved the long distance reception on 20 mtr and above to ten.
Now I test a magnetic loop for 7.1 , 10.1 and 14.15 I intend to make the remote for tuning and direction, the ZS6BKW
is in the N/S direction and i can't hang it the E/W direction
so then I use the loop on the lower bands.

73 Peter

All WSPR operators are welcome to read and join the 2 meter WSPR study discussion on the Google Group at Anyone may ask Glenn N6GN or myself for an invitation or log onto the site to request a subscription to the e-mail list.

My only HF rig is a Kenwood TS-2000, and thanks to limited funds things are likely to stay that way for a long time. However, I'd like to reduce my transmit power below the 5 watts the TS-2000 provides as a minimum. Does anyone have favorite 5W QRP attenuator or kit they can recommend? Thanks you for your advice.

Now that I have been operating WSPR mode for a while, there is something that I would like to see opinions on from other WSPR ops. I have observed +10db signals and above "covering up" the weaker signals during the 2 min. rcv sequence. I normally run 5 Watts output or less,and I have a friend nearby (9 miles) who is also a WSPR op., because of this I have reduced my TX fraction to 15%, which lets me trx approximately every 14 mins. and since most WSPR stations are transmitting @ 20%,( approx. every 6 to 10 mins.

I've recently been working on getting WSPR working on my Raspberry Pi with a cheap USB audio adapter and though that a others may be interested in the problems/solutions I've worked through.

If you have linux operating system installed on your computer like ubuntu and Wine running in the background,WSPR will work very well ,So good you will ferget your using linux ,And not windows os. NY7U

I have greatly re-worked the set of things which happen to do the daily processing after 0000Z (database backups, dump of csv extracts, gathering of data for stats/graph page). I was also being a bit too aggressive about how many web server processes to run, with the result that the server was swapping during all the stats processing. I think that should all be fixed now.

On another front, I have started to keep another database table of an "activity log", which should aid in future automatic fixup of wrong band reports. I have some more development to do, but stay tuned!

Ok I'll try to explain.

If I have a self contained homebrew WSPR transmitter for others to check
propagation with - how do others even know it exists, especially if it's on a band
that often shows zero users (60m/10m/6m/4m/2m/70cms are good occasional examples.)

Using the proper WSPR software enables WSPRNET to report the activity in the band listings.
Others see callsigns listed and are therefore *tempted to give it a go.*

Tune in on WSPR tonight, 136 kHz USB dial frequency. Signals should easily cover from QLD to TAS, and possibly from SA to ZL.

73, Dimitris VK1SV

First of all, we hit another major milestone recently, as we surpassed 100M spots in the database over the past 4.5 years!

However, many of you may have noticed that the site is extremely sluggish or unavailable during the hour or two after 0000Z, when it's doing it's daily stats computations and csv file dumps. It seems that every order of magnitude or so, I need to re-architect aspects of the database, and we're clearly at that point again.

Ordered a 30m Ultimate QRSS Kit from Steve G0XAR and Hans G0UPL.

Looking forward to playing with WSPR, QRSS.


Amazing. Only using 1 watts to a 4m piece of wire in the bedroom (indoors)!

Spots nearly 7000km away on such a poor set up.

73 de Andy G0FTD

The latest ARRL Propagation Broadcast mentions our 2 meter WSPR study. Check it out on

Thanks to all who got on 20m or were
already on, and heard me activate BL02hf!
Vacation is over and I am on my way back to CM88.
This was fun, interfered very little with beach time,
and I highly recommend it to others.

John, K6PZB

Slow Morse (QRSS) beacons now operational on three bands each with approx 50mW (17dBm).
FSK shift is about 5Hz.
These beacons get access to the ZS6BKW antenna when the Icom IC-7000 is off.
Power is from one of the batteries David King, G6KWA, was giving away at CDARC club (thanks Dave).

3.500075 MHz
7.000075 MHz

Signal reports welcome.

Planning to convert these to WSPR and add 160m band real soon now!

There have been some stations on the east coast trying to make digital contacts on 2 meter but activity has been sporadic. I am frequently making SSB contacts up and down the east coast, but have not done much in the way of digital modes besides the occasional FSK441 for HSMS. I noticed one station in Canada on WSPR, and of course the propagation study out in California.

New antenna on my location, it's an active loop from LZ1AQ.
Very impressive antenna with nice S/N on HF low band.
Antenne is made by two crosses loop .
I compared with my hf6v vertical on 10m and i have 1 smeter point less with the active loop on a ZS station !!!

73 ced F4EGZ

Hello friends! Did tests today in 10 and 15 meters and the spread is still not good. At the moment I make this post, my beacon is active in 20 meters. 73