# MLAT problems

**URL:** <https://discussions.flightaware.com/t/mlat-problems/61258>\
**Category:** ADS-B Flight Tracking\
**Created:** [February 20, 2020, 10:40pm UTC](https://discussions.flightaware.com/t/mlat-problems/61258 "2020-02-20T22:40:34Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![juanfortus](https://sea1.discourse-cdn.com/flex019/user_avatar/discussions.flightaware.com/juanfortus/32/58978_2.png) [@juanfortus](https://discussions.flightaware.com/u/juanfortus)\
**Post date:** [February 20, 2020, 10:40pm UTC](https://discussions.flightaware.com/t/mlat-problems/61258/1 "2020-02-20T22:40:34Z")

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Hello community my name is Juan Antonio Hernandez and I have been with my equipment installed for several years and it has been approximately two months since the MLAT does not work  
the insidence is as follows  
this feeder is not being used for multilateration because its timing information appears to be unreliable. This can be caused by te site location being incorret or because your Pi is running out of free CPU

my location is site 35024 LEMG  
Malaga Andalucia  
Spain  
I would be very grateful if you could tell me what I can do to restore my MLAT  
Thanks and health to all

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**Author:** ![abcd567](https://sea1.discourse-cdn.com/flex019/user_avatar/discussions.flightaware.com/abcd567/32/113769_2.png) [@abcd567](https://discussions.flightaware.com/u/abcd567)\
**Post date:** [February 20, 2020, 11:51pm UTC](https://discussions.flightaware.com/t/mlat-problems/61258/2 "2020-02-20T23:51:51Z")

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Seems your 5V dc power supply unit is no more working ok. Try another power supply unit.

Also issue command `top` to RPi. It will show CPU usage in %