Monte Ceneri transmitter, Broadcasting tower in Monteceneri, Switzerland

The Monte Ceneri transmitter consists of two sites in Ticino. The original 1933 mast, a 120-metre free-standing lattice tower in the Monte Ceneri pass, now carries DAB and DVB-T antennas and stands 135 metres tall. North of Isone, the 1978 facility uses a 220-metre guyed lattice-steel mast, insulated from the ground, with a T-antenna between two tubular-steel masts as backup.

The facility started broadcasting in 1933 using a Marconi system running at 15 kilowatts to serve Radio Suisse Italienne. It was upgraded and expanded over the following decades to adapt to changes in broadcasting technology.

The name Landessender Monte Ceneri stayed in use even after the 1978 move north of Isone, so the mast stands far from the pass it is named after. From 1 April 2011 to 31 December 2012 the site carried the Voice of Russia's Italian-language programme on 558 kHz, a Russian service heard in Ticino.

The mast sits on a mountain ridge and can be seen from hiking paths that pass nearby. The location is best reached on foot or by bicycle, as the nearby roads are narrow with limited parking.

The 1978 mast was the only tall guyed mast in Switzerland and the country's second-tallest tower-type structure. Its elevator machinery sits in a sheet-metal-clad compartment just above the basement insulator. The mast was dismantled between July and the end of 2016.