Freinberg Transmitter, Radio transmitter on Freinberg hill near Linz, Austria

The Freinberg Transmitter, internally named LINZ2, is a broadcasting facility in the Freinberg district of Linz. Its current mast, built in 2008, is 127 metres tall and serves only as an antenna carrier, no longer radiating itself. The steel lattice mast stands beside the building of the Funküberwachung Linz, a BMVIT radio monitoring office whose roof carries direction-finding and measuring antennas.

The facility was constructed in the late 1920s as a radio broadcasting station and ranks among the region's early broadcasting infrastructure. Over the decades, it underwent several structural changes to adapt to advancing broadcasting technology.

The mast's internal name is LINZ2, and since 2008 private radio stations have also broadcast from the site. The building beside the mast houses the Funküberwachung Linz, a BMVIT radio-monitoring office with bearing and measuring antennas on its roof; it formerly belonged to the PTV postal service, from which Mobilkom Austria later emerged.

The site is a working transmitter compound, not a visitor attraction; the mast and the Funküberwachung Linz building beside it are not open to the public. One guy anchor of the mast stands on the monitoring service grounds next to the main entrance. The Freinberg hill around it is reached on foot and is exposed to wind and weather.

The tower underwent multiple reconstructions and height changes throughout its history, reflecting the adaptation to new broadcasting techniques. These structural adaptations show how the facility evolved with Austrian broadcasting technology.