However by 1997 AGM would move its operations to Albuquerque and would then change the format to oldies and call letters to KABG in June in another attempt to generate better ratings in Albuquerque. KABG launched in Summer 1997 as "Big Oldies 98.5". It then went on to overcome two other long running oldies stations in the Albuquerque and Santa Fe markets, KBOM 106.7 (moved to 94.7 in 2000, both frequencies which AGM had later purchased) in Santa Fe and KZKL (later changed to KQEO) 101.7 in Albuquerque which dropped the format in 2002 making KABG the only FM oldies station in both markets until its format change in 2007. Local radio veteran Bobby Box would host the morning shift for several years helping to make the station popular with its target audience. For many years the station had been known as "Big Oldies" but in 2007 it rebranded to just "Big 98.5" phasing out the word "oldies" as it has followed most other oldies stations across the country in shifting to a more 1970s focused "classic hits" format in order to improve its audience in the 25-54 age range demographic. It had also changed its website. Despite this, the station still played a small amount of 1950s/early 1960s oldies for a few more years. Today the format is mostly focused on music from the 1980s with a small amount of music from the 1990s added. On September 20, 2019 KABG was granted a construction permit to move its broadcasting facility to Sandia Crest at 13,800 watts.