Can you find the signal strength of a host in the WLAN?

If a device is in close proximity to a notebook, for example another notebook, can you measure the signal strength of this notebook to determine how far it is?

I found in the Wireshark packet log where a request was sent to this computer (i.e. A packet) but I don't know where this device is (let's assume), so how can I determine (if the device I'm looking for emits Wi-Fi signals to the environment (broadcast) where the device is located (so I mean now determine the signal strength to this device)

So each device naturally has its own signal strength in dB to the WLAN access point (you can see it displayed on a cell phone, for example).

But there's no way to simply query this remotely for any device, since the devices do not talk to each other, but each device with the WLAN access point and this forwards the signal. You can't therefore measure the distance between you and another device in the WLAN.

There may be an app for that.

Perhaps you can get closer to your goal with the ping command.

It's not really possible. Then all devices would have to send the same so that one can deduce the distance from the signal strength. Imagine two devices are right next to each other. One device transmits at 20 dBm, the other at 17 dBm. But both are equally far away.

Or imagine that the two devices are 5 meters away from the access point. There's a wall between the access point and a device, the other device is in the same room.

In both cases, both devices that are equally distant can be seen with the same signal strength.

Two approaches are theoretically conceivable:

signal strength, but that assumes that the receiving device knows how strong the transmitting device is actually transmitting
signal transit time, which in turn assumes that the receiver and transmitter are perfectly synchronized e.g. Using an atomic clock

by the way, after the 2nd approach gps works.

lg, anna

PS: It would also work purely technically without an atomic clock if one were to work with send and receive and the signal processing time, i.e. From the moment when the second device receives the signal of the first until the moment when it sends EXACTLY known.