Pretty sure it's ETL. Context:Could it be UTL? That would be Unable To Locate. Don't know ETL either.
This is one of the reason why I don't think it means Enroute to location. I've always hear units responding to a call saying "en route", or simply just "10-4"Why not just say en route, less syllables. Obviously it's a location.
Yup, that's it, except that the unit is actually saying "UTL", not "ETL". OP probably just misheard it. Saying UTL for Unable To Locate is extremely common in numerous California Law Agencies, including the CHP. I hear it all the time.As Carlt stated it is Unable to Locate. In the context you stated "FSP is ETL, I'm 97 98"
Freeway Service Patrol was Unable to Locate the vehicle and the CHP unit was 10-97 - 10-98 and cleared.