This is the place to discuss generalized scanner questions and information for San Diego County. Whether it's radios, antennas, or other general scanner related topics, you can talk about it here.
Also, I updated my microsoft office to 2003 and now the excel list from this site errors on the HEX column (at least the tg id is still there) What did I do wrong?
Most of the time Mercy Air uses 131.6750 to communicate with their base. Sometimes they'll pop up on 28016 on the RCS but they mainly use the VHF AM channel for comms to base.
When coordinating with ground units prior to landing, you can hear than on Med Air (10192) on the RCS.