Four KiwiSDR receivers at Obere Warte near Strahlegg in the canton of Zurich. The devices identify HB9FLO and report an elevation of 1207 m above sea level (locator JN47LH). Each receiver covers 0–32 MHz; the antenna installation is described as optimised for 20–30 MHz. Access: on 15 October 2026, all four devices report password-protected access. The operator explains on the listening page that supporters receive priority access. The HTTPS addresses open the respective receiver interfaces; a reachable website therefore does not guarantee unrestricted listening access.

Antennas at the site

End-fed 5/8-wave antenna for the 10- and 15-metre bands, described as “End Fed 5/8th Wave Dipole” in the current device metadata.

On the map

OnlineOfflineMaintenanceUnknown

Approximate locations unless explicitly approved. Receivers at the same site are grouped.