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.

Please note 80m frequency change to 3.5686 MHz (USB)

Forums: 

Please note, the WSPRNet site has been updated to reflect the change to the 80m WSPR frequency which is now 3.568600 MHz USB.

Thank you to K1JT and G4ZFQ for pointing this out.

73 Gary W1GJM

[From Admins] Map issue -- a fix of sorts

The issue with the Google Maps is related to the change Google made on July 16th, 2018 that severely curtails the free API limits. WSPRNet will be transitioning to an alternative mapping solution as soon as possible.

In the interim I have added a new field to the User Profile form for storing your own Google Maps API Key, if you want to get back to the way things were. You can get your own API Key by following the link below and I would strongly encourage you to read the Q&A down the page.

I started this WSPR journey back in June of this year when i acquired the Zachtek desktop TX from Harry. I have an interest in Low band propagation so a good easy starting point for me is 160m. I knew back then that i had to build an effective antenna system and i also knew that a good earth system was paramount to my future success.

I've been recently transmitting WSPR on an FL2000-based VGA adapter, using the osmo-fl2k library to use one as a fast DAC. I initially didn't get any spots, but after adding a small amplifier of about 100 mW, started getting spots on all bands from 160m to 20m.

Now I tried it without an amplifier into a bit longer random wire antenna, and finally got some spots "barefoot" on 40m! That's just 2 mW from the VGA port into an antenna through some low pass filtering and matching.

We are getting close to the pointy end of December now and the numbers are really stacking up in the Australian 50 MHz WSPR Leaderboard for the month of December.

Our current leaders are -

Two-Way Reports - Jim VK3II with 69

Maximum TX Distance - VK3II to JH1GYE @ 8343 km

Maximum RX Distance - JH1GYE to VK3II @ 8343 km

We are getting close to the pointy end of December now and the numbers are really stacking up in the Australian 144 MHz WSPR Leaderboard for the month of December.

Our current leaders are -

Two-Way Reports - Alan VK3DXE with 37

Maximum TX Distance - VK2DVM to VK6NI @ 3102 km

Maximum RX Distance - ZL1SIX to VK5AKK @ 3174 km

VU2UUU is QRV from ML88nk on 20m WSPR during the 26-Dec-2019 Solar Eclipse to observe the propagation conditions.

Pi esp32 guru. Shocked at my 1/5 watt tapr hat on my pi and 46’ centerfed dipole thumb tacked to the garage attic roof beam.

SDR on pi in kitchen receiving away, but only me coming in until I put it on the real dipole.

Thinking of one pi, dual service transmitting 2 min, then receiving 18min.

It is 2019 December as I post this message. Operating on 630m Band with about 1 watt EIRP. Still looking for amp to improve coverage.

Thank you all who provide your reports to wsprnet.org.

I am very new to W.S.P.R. I am at the setting up stage and intend to operate on HF. and 4m. (70MHz.)

Site Maintenance: November 16th, 2019

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Dear Users,

We are going to take the site offline for a few minutes around 16:15 UTC, and make a change to the database that I hope alleviates the performance issues.

For the 24-28 hours the spot database will be missing older spots. I will repopulate it slowly, starting with today's spots.

Thanks for your patience.

Gary W1GJM

Happy to celebrate passing the US general license exam last Saturday, 9 November, in Windsor, Colorado. It took some time to press the information into this aged grey matter but at last success. 73!

KE0RXF

I found a nice QRP WSPR transmitter online from Zachtek.com and ordered the mid-range model that covers 17, 20, 30 and 40 meters. Output is a reasonable 200mW on all bands and I am running it into a converted vertical antenna over a few buried ground radials (I plan to add more radials soon) and am pretty pleased with the results. I have worked all four bands on and off the last couple of days and seem to get consistent results from Hawaii to the East Coast and up into Canada pretty reliably.

This graphic is placed on my QRZ page and may be copied for free.

https://s3.amazonaws.com/files.qrz.com/l/oe5fgl/keep_free200d.jpg

Franz

AS YOU MIGHT KNOW I'm NEW TO WSPR.
CAN I USE THE RASCAL SOUNDCARD INTERFACE FOR WSPR ? I HAVE THE PK232MBX AND A PK88 AND THE AEA COMPUTER PATCH INTERFACE. I ALSO HAVE THE RASCAL AND A WESTMOUNTAIN RIGBLASTER' SO WHICH ONE SHOULD I USE FOR EASE OF OPERATION ? OH I HAVE USED THE RASCAL AND THE RIGBLASTER FOR SSTV ON MY IC-735.

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