As I read it;
For example if you are in in Seattle and doing Matrix stuff on the DeeCee grid, "where" is your Persona?
Your persona is either in the matrix, inside a host or disconnected from the matrix.
The 'virtual' distance doesn't really seem to matter.
This was more important in 5e, where there was the written rule "you automatically spot every Icon in a 100m radius" (which doesn't appear to have made it to 6e - for better or worse), but it can very much play a part in Sixth World.
It doesn't matter if your matrix persona is in DeeCee or in Seattle or if I am currently in Berlin, Tokyo or Seattle.
If we are both on the matrix (or inside the same host) then I can see your persona and I can interact with your persona. If your PAN is running silent then I first might need to take an opposed matrix perception test to spot you but that's it.
Does your Persona "move" to DeeCee? Is the DeeCee grid "pulled" to your deck?
As long as your persona is in the matrix (on a grid, any grid - as long as it is not currently inside a host) then 'noise due to distance' will always be measured from your physical hardware (or your physical body in the case of a technomancer using her living persona).
But "where" your matrix persona currently is have little or no importance.
'Travel' from one place in the matrix to another is instant.
Think of it as 2019 internet for a second. It doesn't really matter if you are logged into your steam account from your home computer in Seattle or if you are currently playing Killing Floor 2 on a server in Berlin. Or if you travel to Tokyo and connect your steam account on an internet cafe. I will still see that you are online and I can still chat with you. Distance doesn't really matter (except that being in Seattle while playing on a server in Berlin will cause 200+ latency which in Shadowrun will act as a negative dice pool modifier unless you have sufficient noise reduction).
My personal opinion is that a device in a PAN "spawns" a second - smaller - Icon when the device leaves an indeterminate radius from the Persona that is holding it.
Example: If you have your Daihatsu-Caterpillar Horseman in your PAN, after you step - say - 1m away from it it reverts to having it's normal Icon again and has a smaller copy in your Persona.
The device will still have a device icon of its own, no matter if it is slaved or not.
Slaved or not an observer will also automatically spot the icon (unless it is trying to hide).
The 'virtual' distance between the device and the commlink doesn't really matter.
The only reason I think that is because I find it hard to fathom that the Horseman would be Icon-less when parked two blocks away while you are having dinner in a restaurant.
The horseman would still have an icon in the matrix that you may interact with.
If the horseman is not part of a 'network' then it would have a bigger icon floating around on its own. As long as you are on the matrix (rather than inside a host or not on-line at all) it seem as if you don't need to take a test to spot its icon (even if you are physically on the other side of the world?).
If the horseman is part of the owners 'network' and the owner is not running silent then its icon would look like a smaller device icon together with all other devices part of the owners 'network'. But as long as you are on the matrix you still don't need to take a test to spot the specific icon of the horseman. Your character will probably not be confused about this 'virtual distance' of two blocks between the physical device and the PAN icon nor the fact that the device icon not floating next to the physical device. The matrix is very helpful and will let your character know that this is in fact the device icon of the physical device. If you wish to know the exact physical location of a device you need to have Admin access on the 'network' and successfully take the Trace Icon action (but if you already know where the device is physically located, perhaps because you are physically looking at the device, then you of course don't need to trace its virtual icon back to this location).
If the device is part of the owners 'network' and the owner is currently running silent then you will not automatically spot the device icon (same as if the device is not wireless enabled or if it is shutdown or otherwise disconnected from the matrix). In this case you need to take a matrix perception test. If you tie or get net hits then you will notice the device (or rather the owners 'network' with all his slaved devices, including the device icon of the horseman). If the device is not wireless enabled or if it is shutdown or otherwise disconnected from the matrix then your matrix perception test will automatically fail (but your character will probably not know if the reason was that he simply failed to find the silent running 'network' the device was attached to or if the device is not connected to the the matrix at all).
If you are very far away you might take a negative dice pool modifier when interacting with the device. The distance is measured between the actual physical device and your actual physical commlink, cyberdeck/cyberjack, RCC or physical body (in case of living persona) - not the 'virtual' distance between your matrix persona and the owner's personal area network.
