Broadcasting on 107.9 FM from a tower in Ajusco, XHIMR is owned by the Instituto Mexicano de la Radio and broadcasts a jazz music format under the brand name Horizonte 107.9 from a tower atop Cerro del Chiquihuite.
XHIMR-FM received its permit late in 1999; with a three-month deadline to come on air, it signed on February 15, 2000, as "Horizonte 108" utilizing content from other IMER stations, particularly XHOF-FM.
Gradually, the station shifted its broadcasting focus on jazz and world music in its programming.
In 2005, XHIMR boosted its power to 30 kW from its original 10, while dropping the "108" moniker (which had confused listeners).
The station used to broadcast in HD Radio; this transmission was formally launched on September 17, 2012.