SpectralBands // SDR Client

SpectralBands is an advanced Software Defined Radio (SDR) client for iOS, built for high-performance signal monitoring and demodulation.

High-Performance DSP

#

SpectralBands leverages Apple’s Accelerate framework and vDSP for real-time digital signal processing. Our custom pipeline is designed for low-latency audio and high-fidelity spectral visualization.

• WFM (Wideband FM — Broadcast Radio)
• NFM (Narrowband FM — Public Safety, Ham Radio)
• AM (Aircraft, AM Broadcast)
• USB / LSB (Single Sideband — HF / Shortwave / Ham)

Protocol Support

#

SpectralBands is designed for both local and remote operation:

1. WebSDR Mode: Connect to remote WebSDR servers via high-efficiency WebSockets. Ideal for mobile networks.

1. rtl_tcp Mode: Connect directly to local hardware running an rtl_tcp server for raw IQ streaming.

Visual Intelligence

#

• Cyber-Aesthetic Interface: A unique “Dystopian” theme designed for high-contrast visibility.
• Real-time Waterfall: A high-resolution scrolling history of your RF environment.
• Spectrum Trace: Precision readout of signal magnitude across the active bandwidth.
• Registry: Organize and store your favorite servers and frequencies locally.

Support & Legal

#

• Technical Support: GitHub Support Hub
• Privacy Policy: Zero-Data Privacy Statement
• Terms of Service: Terms of Service

SpectralBands is a product of DoubleAsterisks.