Somehow keep channel names from stations that have adopted new ones

ALCT was upgraded from 100 Hz (EN?) to 200 Hz (HN?) in June 2025.  I was investigating an issue with the site having connection issues that were causing latency issues.  But squac no longer knows that the EN? channels exist so I can't query the database to look at the data from before June 24, 2025.  Can this be fixed somehow please?  thanks!!!