WSPR spots
WSPR, which stands for Weak Signal Propagation Reporter, defines a protocol used in amateur radio for assessing radio signal propagation. It allows users to send and receive very low-power transmissions over long distances, that a receiving station then decodes and reports. Here are some key points about WSPR:
Purpose: WSPR is primarily used for scientific and testing purposes, helping amateur radio operators analyze radio wave propagation conditions.
Operation: WSPR operates on specific frequencies and uses a special encoding method for its transmissions. Unlike traditional radio communication, WSPR does not support two-way conversations; it focuses on sending short, beacon-like signals.
Implementation: The WSPR protocol can be implemented in software, and it is compatible with various hardware setups, making it accessible for many amateur radio operators.
Community and Reporting: WSPR signals are often received by automated software-defined radio (SDR) receivers, which can report back the signal’s strength and other details via the Internet, contributing to a global database of propagation conditions.
For more detailed information, you may refer to the WSPR Wikipedia page.
WSPR.Rocks
Managed by Philip Barnard VK7JJ. Presents an interface to a Clickhouse DB courtesy of Arne at wspr.live and hosted at wsprdaemon.org.
WSPR.Live
WSPR.live allows you to do analysis on the real-time wspr spot data. The database contains all spots ever reported to wsprnet.org and allows public access to the data.
WSPRnet
Amateur radio operators using K1JT’s MEPT_JT digital mode collaborate via the Weak Signal Propagation Reporter Network 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.