KiwiSDR WSPR Receiver at KP4MD
The KiwiSDR software defined radio continuously monitors WSPR activity on 8 amateur radio bands from 0-30 MHz and uploads spots to the WsprNet.org and wsprdaemon.org repositories. Daily upload totals are posted at http://wspr.rocks/topspotters. The receiver typically uploads around 20,000 WSPR spots daily. The receiving antenna is a 40m full wave horizontal loop at 6m above ground level.
Left: Raspberry Pi with WsprDaemon software,
Center: KiwiSDR, Right: GPS Active Antenna,
Foreground: NooElec "FlamingoFM" trap and "DistillAM" Bandstop Filter
KiwiSDR information at http://www.kiwisdr.com WsprDaemon software at https://www.wsprdaemon.org
The KiwiSDR captures WSPR signals on up to 8 bands simultaneously and passes them via WiFi to the Raspberry Pi on the right.
The WsprDaemon running on Raspberry Pi decodes WSPR Spots and uploads them to the WSPRnet & WsprDaemon repositories.
An onboard GPS receiver provides a precise time clock and frequency accuracy to 1 Hz.
Real Time Receiver Noise Statistics at KP4MD
The KiwiSDR uploads about 20,000 WSPR spots to the WsprNet and WsprDaemon databases daily.
Grafana Statistical Analysis of 7 days of KP4MD WSPR Spot Data