In comparison the TRX DUO can be found on marketplace sites like Aliexpress for almost half price at US$320. Its specifications are comparable to the Red Pitaya SDRlab 122-16 which in the official website goes for 625,00€ / US$622. The TRX DUO is a 'Red Pitaya compatible' device that comes at a price significantly lower that the Red Pitaya. The Red Pitaya is advertised as an open source electronics laboratory instrument, but as it's essentially a software defined radio with built in computing hardware, custom software can be installed allowing it to function as an HPSDR compatible RX/TX capable SDR. TechMinds: A Look at the TRX DUO Red Pitaya Clone ExtIO with Decimation & Tuner Bandwidth Controls.Manual gain controls and decimation driver.Measuring Traffic Volumes with Passive Radar.SignalsEverywhere Direction Finding Tutorial.Measuring Filter Characteristics & VSWR.Performing Replay Attacks with RTL-SDR and RpiTX.QRP (FT8, JT9, WSPR etc) Monitoring Station.Decoding 433 MHz ISM Band Weather Stations.GOES 16/17 and GK-2A Weather Satellite Tutorial.

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