In some situations such as off shore exploration and drilling it is useful to know the local marine traffic as well as local incoming helicopters. SDRangel can be used effectively to show both of these activities on a local map. AIS: 0:41 ADSB: 3:08 AIS+ADSB: 4:08 BlogPost: https://jeremyclark.ca/wp/telecom/rtl-sdr-for-ais-ads-b-on-local-map/ RTL-SDR for Telecommunications Course Link: https://clarktelecommunications.thinkific.com/courses/rtl-sdr-for-telecommunications