Frugal Radio: A Six SDR Setup with KrakenSDR and SDRplay for ADSB, ACARS, VDL2, P25

Over on YouTube, Rob from the 'Frugal Radio' channel has uploaded a video showing his multi-SDR monitoring setup that consists of a KrakenSDR, SDRplay RSP1A, and a cheap 12-year-old computer. The KrakenSDR is a 5-channel coherent SDR based on RTL-SDRs, and when connected to a computer, it appears as five independent RTL-SDRs that you can use for any purpose.

Rob currently uses three out of the five channels on the KrakenSDR to monitor three aviation digital signals: ADS-B, ACARS, and VDL2. The SDRplay is used on the same PC to monitor a 700 MHz P25 digital voice system. Rob uses the ADSB.im Docker image, which lets users feed multiple flight aggregation services, such as ADSBExchange, FlightRadar24, FlightAware, etc., all on one device. 

In the future, Rob hopes to add Inmarsat L-band reception with the spare channels on the KrakenSDR, which will be received by a Discovery Dish.