RSP-Spectrum Analyser 1.04

RSP-Spectrum Analyser by SDRplay Ltd

RSP-Spectrum Analyser is dedicated spectrum analyzer software for the SDRplay RSP family of software-defined radio receivers. It turns your PC and RSP into a responsive RF analysis tool, providing a clear, real-time view of signals with flexible sweep control, precise measurements, and an intuitive workflow suitable for lab work, education, and hobbyist projects.

Key features

• Wide-span, real-time sweeps using SDRplay RSP hardware
• Easy control of center frequency, span, reference level, attenuation, and gain
• Selectable RBW and VBW with averaging and window options for cleaner measurements
• Multiple trace modes, including live, peak hold, average, and min hold
• Marker and delta-marker tools with peak search and numeric readouts (dB, dBm, dBFS)
• Waterfall and persistence displays to visualize changes over time
• Amplitude calibration and correction profiles tailored to RSP devices for improved accuracy
• Log/linear amplitude scaling and configurable dB-per-division grids
• Save/recall of setups, plus trace and screenshot export for documentation
• Keyboard and mouse shortcuts for fast zooming, panning, and measurement
• Supports the SDRplay RSP family via the SDRplay API (e.g., RSP1A, RSP2, RSPduo, RSPdx)
• Designed for Windows PCs

Typical uses

• Band monitoring and interference hunting
• Antenna and filter tuning (with suitable external stimulus)
• General RF troubleshooting and education

Requirements

• Windows PC (Windows 10/11 recommended)
• SDRplay RSP receiver
• SDRplay drivers/API installed

Note: Measurement accuracy depends on device calibration, settings, and test setup.

RSP-Spectrum Analyser is developed by SDRplay Ltd. The most popular versions of this product among our users are: 1.0, 1.1 and 1.2. The names of program executable files are RSP-SAS Spectrum Analyser.exe, RSP-Spectrum-Analyser V1.21.1.exe and RSP-Spectrum-Analyser V1.21.exe.