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

TAPR offers two versions of a WSPR “hat” to use with Raspberry Pi single-board computers:

  1. 20m, 30m, 40m fully assembled and tested
  2. 160m, 80m, 15m/17m, 10m/12m partial kit – user has to solder low pass filter (supplied)

Click on the appropriate WSPR transmitter link for more information

TAPR has no connection with Raspberry Pi.

Note: Raspberry Pi, power supply, SD card and antenna not included.

Documentation and Files are available at:

WSPR Documentation and Files


32 in stock (can be backordered)


24 in stock (can be backordered)


41 in stock (can be backordered)


25 in stock (can be backordered)


53 in stock (can be backordered)


57 in stock (can be backordered)


37 in stock (can be backordered)

Want a discount? Become a member by purchasing TAPR Membership!

Categories: ,


There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.