Listener and Gateway placement

[leapslabs]

Hi Izak,

some part of your question was explained in this post:

Distance between anchors and Listener, TX Power

Hi Izak, The range around 25m is point to point and can be achieved in ideal condition. I.e. the Fresnel Zone is avoided, the antenna are orientated the direction with best radiation, etc. In practice this range would be shorter so e.g. the Tag would have some extra budget when moving around. In addition the coverage area is not square as you have written but more like a non-perfect ellipsoid (very simplified explanation). The only way to have connection to all nodes in an extended area is us…

The Listener would be ideally in UWB range with the Tags.

The Gateway would be ideally in UWB range with the Tags and Anchors.

@Izak

For example what is the minimum anchors the listener must “see” at any given moment?

There is nothing like “minimum anchors the listener must see at the given moment”. I think you have misunderstood the concept of the Listener. Please see the post above.

@Izak

Does the anchors communicate the coordinates of the tag via each other to the listener or gateway?

No. The position is calculated on the Tag and its position is collected directly by the Listener or Gateway. The Listener was intended to be used only for demo purpose. The Gateway in contrary provides more complete functionalities like uplink/downlink of Anchor/Tag configuration and IoT User Data.

Cheers,
TDK