SP3RC
WSPR Pico-Balloon Hunt
– Weak Signals, Strong Thrills
🔧 How to Use
- Data is retrieved from the official WSPRNet database: wsprnet.org/olddb
- Enter a full and exact callsign (wildcards like
* or % are not supported — e.g. SP3R* won’t work).
- Leave the callsign field empty to display all transmitting stations within the selected time window
- Select a band and how far back in time you want to search.
- Click 🔍 SEARCH to view recent WSPR activity.
🗺 Map View
- Red dots = Transmitting (TX) stations — either the callsign you searched for, or all stations if the field was left empty
- Green dots = Receiving (RX) stations that reported the TX station
- Curved lines represent each WSPR link between TX and RX
- Click any callsign on the map to open its QRZ.com page
🌒 Day/Night Terminator
- A semi-transparent overlay shows the current day/night line
- It updates every minute to reflect real-time Earth illumination
💡 Pro Tip
You can share or bookmark searches with custom links like:
https://hunt.sp3rc.com/?call=SP3RC&band=10m&hours=1&spots=50
Loading data...
No matching results found for the selected parameters.
| Date | TX Call | TX Grid | Frequency | SNR | Drift |
dBm | Power | RX Call | RX Grid |
km | mi | Mode | Version |