BEGIN:VCALENDAR VERSION:2.0 PRODID:IEEE vTools.Events//EN CALSCALE:GREGORIAN BEGIN:VTIMEZONE TZID:US/Eastern BEGIN:DAYLIGHT DTSTART:20260308T030000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 RRULE:FREQ=YEARLY;BYDAY=2SU;BYMONTH=3 TZNAME:EDT END:DAYLIGHT BEGIN:STANDARD DTSTART:20261101T010000 TZOFFSETFROM:-0400 TZOFFSETTO:-0500 RRULE:FREQ=YEARLY;BYDAY=1SU;BYMONTH=11 TZNAME:EST END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTAMP:20260617T140922Z UID:46D55656-A12C-4276-8EB6-ADC1A5FBDC55 DTSTART;TZID=US/Eastern:20260616T190000 DTEND;TZID=US/Eastern:20260616T200000 DESCRIPTION:RF in Slow Motion: Using Acoustics for SDR Education\n\nWhat if you could hear a QAM or OFDM signal? By translating RF waveform experimen tation into the acoustic domain\, realistic multipath\, Doppler\, digital modulation\, and other physical-layer effects encountered in SDR systems c an be explored using purpose-built hardware\, without the cost barrier of equivalent RF platforms. The key insight is wavelength-consistent scaling: compressing the frequency axis by the ratio of the speed of light to the speed of sound (roughly a factor of one million) maps RF waveforms into th e audio band while preserving the underlying physics of propagation\, refl ection\, and interference. SigPro Labs\, LLC has developed the RadioSonic platform for this purpose.\n\nThis talk examines the practical challenges of using acoustics for wavelength-consistent emulation of RF waveforms. He re we’ll see (and hear!) how RF modulation behaves when observed “in s low motion\,” and how conventional SDR algorithms for synchronization an d demodulation perform under these conditions. As bandwidth increases\, im pairments familiar to SDR practitioners emerge in exaggerated form: inters ymbol interference requiring equalization\, carrier and timing offsets dem anding synchronization algorithms analogous to those used in production SD R systems\, and dramatically enhanced Doppler effects resulting from the m uch slower propagation speed of sound. This talk concludes by comparing wh ere acoustic emulation faithfully mirrors RF behavior and where the analog y begins to break down.\n\nTargeted for release in Summer 2026\, RadioSoni c is intended as an open platform for the SDR education and research commu nity\, providing a reproducible testbed for physical-layer algorithm devel opment and wireless channel experimentation. This presentation highlights both the technical discoveries and unexpected insights encountered while d eveloping an acoustic-domain emulator for RF communication systems.\n\nAbb reviations:\nOFDM Orthogonal Frequency Division Multiplexing\nQAM Quadratu re Amplitude Modulation\nRF Radio Frequency\nSDR Software Defined Radio\n\ nSpeaker(s): Dan Boschen\n\nAgenda: \nWEBINAR: 7:00 - 8:00 P.M.\n\nThe Zoo m Webinar link and password will be forwarded to all registered participan ts after Noon on the day of the meeting. Check your spam folder if you don 't see the email.\n\nWebinar is open to all.\n\nPDH certificates are avail able and an evaluation form will be emailed to you after the meeting. PDH certificate are sent by IEEE USA 3-4 weeks after the meeting.\n\nVirtual: https://events.vtools.ieee.org/m/561277 LOCATION:Virtual: https://events.vtools.ieee.org/m/561277 ORGANIZER:ieee@gpamg.org SEQUENCE:24 SUMMARY:RF in Slow Motion: Using Acoustics for SDR Education URL;VALUE=URI:https://events.vtools.ieee.org/m/561277 X-ALT-DESC:Description: <br /><p class="MsoNormal"><strong>RF in Slow Motio n: Using Acoustics for SDR Education</strong></p>\n<p class="MsoNormal" st yle="line-height: 1.5\;">What if you could hear a QAM or OFDM signal? By t ranslating RF waveform experimentation into the acoustic domain\, realisti c multipath\, Doppler\, digital modulation\, and other physical-layer effe cts encountered in SDR systems can be explored using purpose-built hardwar e\, without the cost barrier of equivalent RF platforms. The key insight i s wavelength-consistent scaling: compressing the frequency axis by the rat io of the speed of light to the speed of sound (roughly a factor of one mi llion) maps RF waveforms into the audio band while preserving the underlyi ng physics of propagation\, reflection\, and interference. SigPro Labs\, L LC has developed the RadioSonic platform for this purpose.</p>\n<p class=" MsoNormal" style="line-height: 1.5\;"><br>This talk examines the practical challenges of using acoustics for wavelength-consistent emulation of RF w aveforms. Here we&rsquo\;ll see (and hear!) how RF modulation behaves when observed &ldquo\;in slow motion\,&rdquo\; and how conventional SDR algori thms for synchronization and demodulation perform under these conditions. As bandwidth increases\, impairments familiar to SDR practitioners emerge in exaggerated form: intersymbol interference requiring equalization\, car rier and timing offsets demanding synchronization algorithms analogous to those used in production SDR systems\, and dramatically enhanced Doppler e ffects resulting from the much slower propagation speed of sound. This tal k concludes by comparing where acoustic emulation faithfully mirrors RF be havior and where the analogy begins to break down.</p>\n<p class="MsoNorma l" style="line-height: 1.5\;"><br>Targeted for release in Summer 2026\, Ra dioSonic is intended as an open platform for the SDR education and researc h community\, providing a reproducible testbed for physical-layer algorith m development and wireless channel experimentation. This presentation high lights both the technical discoveries and unexpected insights encountered while developing an acoustic-domain emulator for RF communication systems. </p>\n<p class="MsoNormal" style="line-height: 1.5\;"><span style="text-de coration: underline\;">Abbreviations:</span><br>OFDM &nbsp\; &nbsp\; &nbsp \;Orthogonal Frequency Division Multiplexing<br>QAM &nbsp\; &nbsp\; &nbsp\ ; &nbsp\; Quadrature Amplitude Modulation<br>RF &nbsp\; &nbsp\; &nbsp\; &n bsp\; Radio Frequency<br>SDR &nbsp\; &nbsp\; &nbsp\; &nbsp\; Software Defi ned Radio</p><br /><br />Agenda: <br /><p><strong>WEBINAR:</strong>&nbsp\; 7:00 - 8:00 P.M.&nbsp\;</p>\n<p>The Zoom Webinar link and password will be forwarded to all registered participants after Noon on the day of the mee ting. <strong>Check your spam folder if you don't see the email.&nbsp\;</s trong></p>\n<p>Webinar is open to all.</p>\n<p>PDH certificates are availa ble and an evaluation form will be emailed to you after the meeting. PDH c ertificate are sent by IEEE USA 3-4 weeks after the meeting.</p> END:VEVENT END:VCALENDAR