Over the past few weeks we've posted about the release of multiple Windows software programs from M. Khanfar an SDR hobbyist who has begun developing new software for the RTL-SDR and other SDR devices. He's released a Spectrum Analyzer and FM demodulator, directional antenna based radio direction finder, and a gr-phosphor based spectrum visualizer.
Recently, M. Khanfar has released a new Windows program called "Khanfar Spectra-All" which is a gr-phosphor based spectrum analyzer that can combine the bandwidths from multiple SDR devices, including RTL-SDR, Airspy and, HackRF SDRs into a wideband display.
Khanfar writes:
Control all connected SDR devices through a single unified interface. No manual alignment needed - devices automatically position frequency ranges to maintain continuity.
Seamless Spectrum Coverage: Create ultra-wideband monitoring setups that exceed capabilities of any single SDR. Ultra-fast frequency scanning with dwell times as low as 8ms for rapid spectrum sweeps.
Uninterrupted visualization across device boundaries. See all connected SDRs in a single, coherent display. Software automatically detects, initializes, and synchronizes all available SDR hardware on startup. All connected SDR devices function as a single block during scanning operations.
Customize dwell time, frequency steps, and range to optimize for specific monitoring needs. Handles the complexity of coordinating multiple SDRs, presenting a unified interface.
Frequency Locking Across Multiple SDR Instances: Creates a continuous spectrum view by intelligently aligning frequency ranges of all connected devices.
One-Control Operation: Control all connected SDR devices through a single interface with synchronized parameter adjustments.
Turbo Scanning with 8ms Dwell Time: Ultra-fast frequency scanning capabilities for rapid signal discovery.
GPU-Accelerated Visualization: Uses Fosphor, a high-performance GPU-based spectrogram engine, for smooth real-time rendering.
The latest version 1.2 of Khanfar Spectra-All also adds a mobile web interface that can be used to control the settings of the SDRs remotely.
As mentioned in previous posts, antivirus software can flag M. Khanfar's software as suspicious. We suspect these are false positive results due to the PyInstaller system used to create the exe, but please take your own precautions just in case.
