Posted on 10 Comments

WSPR on 20, 30 and 40 Meters

TAPR now offers its popular Raspberry Pi QRP TX Shield for WSPR in three versions: 20, 30 and 40 meters!

Nowadays, one of the most impressive QRP modes is Joe Taylor, K1JT’s WSPR (pronounced “whisper”) mode. WSPR stands for “Weak Signal Propagation Reporter.” Programs written for WSPR mode are designed for sending and receiving low-power transmissions to test propagation paths on the MF, HF and recently, UHF bands. Users with Internet access can watch results in real time at

TAPR’s QRPi board (or “shield” as referred by the community today) is an inexpensive way of turning a Raspberry Pi single-board computer into a QRP transmitter. The QRPi comes to you assembled and tested.

For more information and to place an order visit the TAPR Shop.

10 thoughts on “WSPR on 20, 30 and 40 Meters

  1. Are we able to work FT8 or SSTV modes with this shield ?

    1. No

  2. It would be nice to have modules for 6/10/12/80 meterbands as well

  3. Information links are broken from the 30 and 40 meter versions. Is this still a viable product? Links still exist for the original 20 meter version. I am interested but not if support is gone… 🙁

    1. All three versions are still viable products and are being supported.

    2. As we transition to our new website, you can temporarily use

  4. I have received the WSPR shields I ordered, thanks!
    Tried to download the PDF documentation for the 40m version, but as said above the PDF link is broken (
    Where can I find the document?
    73s de SM2YHP

    1. As we transition to our new website, you can temporarily use

      1. Thanks! I have downloaded the documentation.
        – SM2YHP

  5. Let me start with I believe you. The links are working for me except the WSPR executables and the SD Card Image. Those are definitely broken. I think I need to try accessing them from another computer – I don’t want to throw away all of my browser history.

    Thanks for pointing out the broken links.

    73 Bruce Raymond/ND8I

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