Arinc Vs Asr??

[gbeck41]

Trying to get into monitoring air traffic. I know alot of commercial air use the Aeronautical Radio INC. I now start to see this Aviation Spectrum Resources INC. Is this something new or which is used more by commercial air? Whats the difference. Gregory

 

[nd5y]

If I'm not mistaken Aviation Spectrum Resources is a part of ARINC.