 By 1970, it was owned by Fausto Aguilar Saldivar and broadcast from Macuspana with 1,000 watts on 1150 kHz.The current concessionaire acquired it in 2003 and moved it to 850 kHz with 5,000 watts day and 1,000 night.XERTM was approved to migrate to FM on June 4, 2010, becoming XHRTM-FM 107.7.