It looks like someone at the station in Los Angeles 89.9 is probably playing around with RDS alternate frequency tuning. They just recently (past 6-12 months) started playing with the call sign feature. Instead of scrolling text information at the bottom of the radio info screen they are "scrolling" text using the call sign area of the info screen... I have a feeling they have activated the alternate frequency tuning feature.

On another NPR station in the area, 89.3, they are using RDS to broadcast time as well as text which displays at the bottom of the radio info screen. They are not broadcasting the station's call letters. This station does not have the auto tuning problem.

Is there a way to make the empeg "ignore" all or some RDS data, such as alternate frequency tuning, if that is what is going on here?