Here is the general talk group assignment rotation. Keep in mind that you can assign any talk group anywhere in the City/Poway with some very minor exceptions (South tip of Point Loma, portions of San Pasqual Valley).
Medical Aid calls Citywide - 7E/7F
Traffic Accidents Citywide - 7H/7I
Fire calls are assigned in this order.
South of the 8.
8A/8B
8D/8E
8G/8H Veg Fires Only
8J/8K
North of the 8.
9A/9B
9D/9E
9G/9H Veg Fires Only
9J/9K
As an example if 9A/9B is assigned to an active call and another non-vegetation fire response comes up North of the 8 CAD will assign 9D/9E, then 9J/9K. If all are in use CAD will start assigning the Zone 8 pairs if available and vice-versa.
No other boundaries are in play like “West of 805”. Just the 8.