# Integration with Spectrum AR8020T receiver

Source: https://forum.modalai.com/topic/472/integration-with-spectrum-ar8020t-receiver
Category: Flight Core and Legacy VOXL (https://forum.modalai.com/category/9/flight-core-and-legacy-voxl)
Tags: flight-deck
Posted: 2021-10-01 09:53:21 UTC by Prasanth Kumar Duba
Replies: 2 · Views: 877

## Prasanth Kumar Duba · 2021-10-01 09:53:21 UTC

Dear Team,
I have connected the AR8020T receiver with the flight deck, but there is an issue with radio calibration in QGround Control software. 
Would you please check the attached image and help me in this regard?

![1.jpg](https://forum.modalai.com/assets/uploads/files/1633081963355-1.jpg) 

Regards
Prasanth Kumar

## Reply by Chad Sweet (ModalAI staff) · 2021-10-08 15:58:21 UTC

It looks like the AR8020T uses SRXL2 protocol which is not yet supported in PX4.

## Reply by Prasanth Kumar Duba · 2021-11-06 10:42:33 UTC (in reply to Chad Sweet)

@Chad-Sweet I have tried with flysky receiver also but it's not working. Please suggest the receiver which is compatiable with flight deck.