Symbols on maps

[keith jackson]

Hi, sorry if this may be in the wrong section, but i am fairly new to the forum . Can someone tell me what the red triangle indicates for the location of a aircraft. I noticed there has been one showed near north east England, and it never moves. When you tap the screen, it shows it belongs to ram aircraft. Just wondering what it is ? Thanks for your time, keith jackson

 

[Lee Armstrong]

These are usually ground transmitter of ADS-B such as MLAT assistance stations or even just a test location

 

[keith jackson]

These are usually ground transmitter of ADS-B such as MLAT assistance stations or even just a test location

Thanks for that Lee, keith.

 

[keith jackson]

Thanks for that Lee.