---
title: rssi
framework: corelocation
role: symbol
role_heading: Instance Property
path: corelocation/clbeacon/rssi
---

# rssi

The received signal strength of the beacon, measured in decibels.

## Declaration

```swift
var rssi: Int { get }
```

## Discussion

Discussion This value is the average signal strength of the samples received since Core Location last reported the range of the beacon to your app. Use this value for calibrating beacon transmission power.

## See Also

### Determining the distance to the beacon

- [proximity](corelocation/clbeacon/proximity.md)
- [CLProximity](corelocation/clproximity.md)
- [accuracy](corelocation/clbeacon/accuracy.md)