It is very useful to understand what exists in your state. Either it be the CP or important rss sources.
Most players do grid search in order to find opportunities of different sorts, but it’s a good idea to do it a bit systematically in order to be effective.
In the picture below you see that we start in one corner of the map.
This is simply done by opening the map, and scroll until you find a fence, either to one side or up/ down.
Then you scroll 90 degrees on the first scroll until you find a fence corner like the picture above.
The next you should note is the X and Y coordinates at the mid bottom of your map screen. In the picture above it says x:509 y:1021.
One way to start searching is up and down. In the pictures below we have moved 6 points to the left, you can see the same black vertical line on both pictures as a reference. Meaning it’s a bit of an overlap, but this is only done to explain. The screen should be moved 10 points at the time.
This means that you scroll up following the fence until you see the fence on top of the screen.
Then you move 10 points to one side, that way you are covering the whole map, and not missing any spot or opportunities.
If you want to understand how the map works, you can read this article here.