The RSPduo is unlike any other SDR in the SDRplay product line, and, indeed, unlike most of the budget SDRs currently on the market.
As “duo” implies, this RSP features dual independent tuners, both piped through a single high-speed USB 2.0 interface. With the RSPduo, you can explore two completely separate 2 MHz bands of spectrum anywhere between 1kHz and 2GHz.
SDRplay lays out several use-scenarios in their press release:
- The ability to simultaneously receive on two totally independent 2 MHz spectrum windows anywhere between 1 kHz and 2 GHz
- Simultaneous processing from 2 antennas enables direction-finding, diversity, and noise-reduction applications
- Ideal for cross band full-duplex reception, e.g. HF + VHF, or VHF + UHF
- Simultaneous Dump1090 and VHF ATC reception
- Simultaneous monitoring and recording of 2 ISM bands
- Use SDRuno to seamlessly control and manage the dual tuner in a single environment.
Externally, the RSPduo bears a strong resemblance to the RSP2pro. Internally, however, it’s quite different.
Besides featuring a second independently controlled tuner, the RSPduo also sports 14 bit ADCs and a completely re-designed RF front end, which enhances receiver selectivity and improves dynamic range.
In short, the RSPduo is like having two SDRs in one.
The RSPduo’s price is approximately $280 US.