"DX" = reception of a transmitter more than 150 km away (250 km for Azores island receivers).
Consecutive detections of the same frequency within 10 minutes are grouped into a single catch.
Data sourced from each server’s public endpoint, requests are all cached, multi-user. This dashboard is non-intrusive and does not occupy receiver slots.
(c) 2026 Fred (CT7AOP) for personal /
websdr.pt use • Comercial use only with written permission. • Adding of trackers prohibited.