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.
Many of the mutual aid channels are available on all of the cells. Of course a unit has to be affiliated with it for it to work, but I thought it was only the (N, S, E) M/A Cmd 5 and Tacs 9 -11 that were available (as well as Heartland Cmd 5 and Tacs 9 - 11).
South Tac 11 is wide area, primarily because they use it as an in-county travel channel.
Same with Heartland Command 5, Tacs 9 and 10.
North Tac 11 may be wide-area as well.