Don't confuse Software Defined Radio (SDR) with RTL-SDR, which refers to SDR with repurposed Realtek DVB-T sticks. The realtek chip might drift into obscurity

Don't confuse Software Defined Radio (SDR) with RTL-SDR, which refers to SDR with repurposed Realtek DVB-T sticks. The realtek chip might drift into obscurity one day but SDR in general is certainly here to stay.