SDRplay RSPdx-R2 Wideband SDR Receiver 1 kHz–2 GHz, 14-bit

The SDRplay RSPdx-R2 is an enhanced version of the popular RSPdx — a full-featured, 14-bit wideband SDR receiver covering 1 kHz to 2 GHz with no gaps across VLF, LF, MW, HF, VHF, UHF, and L-band. Monitor up to 10 MHz of spectrum simultaneously.

Three software-selectable antenna ports (A: SMA, B: SMA with optional 4.7V bias-T, C: BNC) and an external clock input for GPS reference or synchronisation. Improved noise performance and dynamic range below 2 MHz compared to the original RSPdx, with HDR mode providing additional selectivity advantages in that range.

Includes free SDRuno (Windows) and SDRconnect (Windows, macOS, Linux) software. Full multiplatform driver and API support covers Windows, Linux, Mac, Android, and Raspberry Pi 4/5. Calibrated S-meter, RF power, and SNR measurement with CSV datalogging in SDRuno. Integrated frequency scanner for ranges and memory panel lists.

Key Features

• Coverage: 1 kHz–2 GHz, no gaps (VLF, LF, MW, HF, VHF, UHF, L-band)
• 14-bit ADC, up to 10 MHz instantaneous bandwidth
• Improved noise performance and dynamic range below 2 MHz vs RSPdx
• HDR mode below 2 MHz for enhanced dynamic range and selectivity
• 3 software-selectable antenna ports: SMA (A), SMA + bias-T (B), BNC (C)
• Bias-T: 4.7V @ 100mA, software selectable on port B
• External clock input for GPS reference or synchronisation
• Free SDRuno (Windows) and SDRconnect (Win/Mac/Linux) included
• Multiplatform: Windows, Linux, Mac, Android, Raspberry Pi 4/5
• Calibrated S-meter, SNR, RF power measurement + CSV datalogging
• Integrated frequency scanner
• Documented API for custom application development

Specifications

• Frequency range: 1 kHz–2 GHz
• ADC resolution: 14-bit
• Antenna A: SMA female, 50Ω, 1 kHz–2 GHz
• Antenna B: SMA female, 50Ω, 1 kHz–2 GHz, bias-T 4.7V @ 100mA
• Antenna C: BNC female, 50Ω, 1 kHz–2 GHz
• Dimensions: 113 × 94 × 35mm
• Weight: 315g