A drone's Sensor rating is vital to a Jumped-In rigger's attack, as well as all Perception tasks. I would very much like to upgrade the Sensor ratings of my character's drones, but I'm having a little difficulty figuring out how.
Each drone has a Sensor rating off the shelf: Steel Lynx, for example, has 3. It also has a Sensor Capacity rating of 8, as a Large Drone (pg. 334 SR4A), so I can add other Sensors, but I don't see how this improves the Sensor Rating. There is, of course, the Improve Sensor Rating modification, but that simply makes the Sensor Capacity as if for a Drone one size larger; which doesn't improve the Sensor Rating.
pg. 105, Arsenal, states under Vehicle Sensors, "If a character improves the ratings of all of the individual components in a sensor package, the overall Sensor rating of the vehicle should also be improved accordingly." Can I simply upgrade the camera in the drone to get a boost to Sensor? Does that take up any additional Capacity?
I find this intensely confusing, any insight would be appreciated. Thanks.