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Echoes 0.50, released by independent developer gmbertani, is a dedicated radio-spectral analysis package created expressly for users who monitor meteors via forward-scatter techniques with low-cost software-defined radio hardware. Positioned in the Astronomy / Radio Science category, the program turns any RTL-SDR, Airspy, or compatible dongle into a real-time spectrograph that records the brief, Doppler-shifted reflections produced when meteor trails interrupt VHF carrier signals. Operators typically pair the software with a distant beacon in the 40–70 MHz range, leave the system running overnight, and later review the automated logs to count events, measure trail durations, and study ionospheric winds. Although the single public build remains at version 0.50, the lightweight executable already offers waterfall display, adjustable FFT size, time-stamped event capture, and daily summary CSV export, making it suitable for both casual observers building a citizen-science tally and schools seeking an inexpensive way to introduce space-physics concepts. Because the interface is intentionally minimal, newcomers can begin monitoring within minutes: select the dongle, set the beacon frequency, define detection thresholds, and start logging; advanced users can still access command-line switches for scripted scheduling or remote headless operation. The author notes that the codebase is stable on Windows 7 through 11 and requires no installation beyond the SDR driver already used by mainstream SDR utilities. Echoes is available for free on get.nero.com, with downloads delivered through trusted Windows package channels such as winget, ensuring the latest build is always fetched and enabling batch installation alongside other scientific or productivity tools.
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