# How to enable MLAT
**URL:** https://discussions.flightaware.com/t/how-to-enable-mlat/18922
**Category:** ADS-B Flight Tracking
**Created:** [August 26, 2016, 7:48pm UTC](https://discussions.flightaware.com/t/how-to-enable-mlat/18922 "2016-08-26T19:48:17Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@TheJhonatanMore](https://discussions.flightaware.com/u/TheJhonatanMore)
#### Post date: [August 26, 2016, 7:48pm UTC](https://discussions.flightaware.com/t/how-to-enable-mlat/18922/1 "2016-08-26T19:48:17Z")
After the upgrade from 6.4 to 7.2.2 (Flightfeeder), i still without see any MLAT airplane in my screen. It is weird because on FR24 i can see them flying over here.
Thanks.
---
### Author:  [@obj](https://discussions.flightaware.com/u/obj)
#### Post date: [August 26, 2016, 8:44pm UTC](https://discussions.flightaware.com/t/how-to-enable-mlat/18922/2 "2016-08-26T20:44:17Z")
Multilateration requires several receivers distributed around the area to be covered. There are not enough receivers near you for multilateration to work in your area yet.
---
### Author:  [@JosephCharlesGuevarr](https://discussions.flightaware.com/u/JosephCharlesGuevarr)
#### Post date: [January 18, 2018, 3:28am UTC](https://discussions.flightaware.com/t/how-to-enable-mlat/18922/3 "2018-01-18T03:28:19Z")
Mine too. The light displays yellow.what does that mean?
---
### Author:  [@david.baker](https://discussions.flightaware.com/u/david.baker)
#### Post date: [January 18, 2018, 7:38pm UTC](https://discussions.flightaware.com/t/how-to-enable-mlat/18922/4 "2018-01-18T19:38:06Z")
MLAT requires synchronization with other nearby sites. You can see on the coverage map if you are in an area that does MLAT.
> **[FlightAware ADS-B Coverage Map - FlightAware](https://www.flightaware.com/adsb/coverage)**
>
> Worldwide Coverage Map (Google Maps) showing FlightAware ADS-B sites around the world along with average/estimated range rings and site coverage areas.
You can see the exact number of synchronized sites on your FlightAware my-ADSB page.
Click on the my-ADSB link at the top of the [flightaware.com](http://flightaware.com) website to reach your ADSB stats page.
On your site it should list the number of synchronized sites you have.
> Feeder Check-In: a minute ago
> Feeder Type: FlightFeeder 7.8.7
> Multilateration (MLAT): Supported / Enabled (synchronized with 72 nearby receivers)
You need at least 4 to do MLAT. Yellow MLAT status means you have MLAT turned ON but something is preventing MLAT. You can mouse over the status to see the reason.