---
title: carrierFrequencyOffset
framework: nearbyinteraction
role: symbol
role_heading: Instance Property
path: nearbyinteraction/nidltdoameasurement/carrierfrequencyoffset
---

# carrierFrequencyOffset

The drift, as a ratio, across the frequencies of the receiver and the anchor.

## Declaration

```swift
var carrierFrequencyOffset: Double { get }
```

## See Also

### Evaluating the message

- [measurementType](nearbyinteraction/nidltdoameasurement/measurementtype.md)
- [responderClockFrequencyOffset](nearbyinteraction/nidltdoameasurement/responderclockfrequencyoffset-8wu5r.md)