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    <title>Signal Chain</title>
    <link>https://signal-chain.tech/</link>
    <description>Recent content on Signal Chain</description>
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      <title>Signal Chain</title>
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    <language>en</language>
    <copyright>Alexander Pryadunets</copyright>
    <lastBuildDate>Wed, 26 Aug 2026 00:00:00 +0000</lastBuildDate>
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    <item>
      <title>Precision Functional Generator — WIP</title>
      <link>https://signal-chain.tech/projects/precision_functional_generator/</link>
      <pubDate>Wed, 26 Aug 2026 00:00:00 +0000</pubDate>
      <guid>https://signal-chain.tech/projects/precision_functional_generator/</guid>
      <description>A first attempt at building a programmable function generator around an STM32H743, high-speed DAC and GNSS timing.</description>
    </item>
    <item>
      <title>Putting the Hantek DSO2D10 on a Python leash</title>
      <link>https://signal-chain.tech/posts/hantekdso2d10_first_test/</link>
      <pubDate>Mon, 24 Aug 2026 00:00:00 +0000</pubDate>
      <guid>https://signal-chain.tech/posts/hantekdso2d10_first_test/</guid>
      <description>A gifted Hantek DSO2D10, Debian 13, USBTMC, SCPI, and a first attempt at pulling raw waveforms into Python.</description>
    </item>
    <item>
      <title>PPS Timing System: From &#34;Why Does This Keep Hanging&#34; to Nanosecond-Level Data</title>
      <link>https://signal-chain.tech/projects/pps-timing-system/</link>
      <pubDate>Sat, 01 Aug 2026 00:00:00 +0000</pubDate>
      <guid>https://signal-chain.tech/projects/pps-timing-system/</guid>
      <description>Characterizing PPS timing accuracy across two GNSS receivers at nanosecond resolution</description>
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    <item>
      <title>VLFRecorder: Real-Time Dual-Channel VLF Acquisition Software</title>
      <link>https://signal-chain.tech/projects/vlf_recorder/</link>
      <pubDate>Thu, 30 Jul 2026 00:00:00 +0000</pubDate>
      <guid>https://signal-chain.tech/projects/vlf_recorder/</guid>
      <description>A real-time acquisition and monitoring application for VLF lightning detection stations, built around GPS-disciplined DAQ hardware</description>
    </item>
    <item>
      <title>Digital twin system for TEC, Doppler and other measurements</title>
      <link>https://signal-chain.tech/projects/digital_twin_for_isu_ionosphere/</link>
      <pubDate>Sat, 13 Jun 2026 00:00:00 +0000</pubDate>
      <guid>https://signal-chain.tech/projects/digital_twin_for_isu_ionosphere/</guid>
      <description>A web-based digital twin for a ground-station network measuring ionospheric TEC via coherent dual-frequency satellite beacons — from IQ recordings to a live station map</description>
    </item>
    <item>
      <title>About</title>
      <link>https://signal-chain.tech/about/</link>
      <pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
      <guid>https://signal-chain.tech/about/</guid>
      <description>&lt;p&gt;RF Systems Engineer with hands-on experience designing and integrating hardware for scientific measurement systems — from photometers to VLF lightning detection networks.&lt;/p&gt;
&lt;p&gt;At the Institute of Solar-Terrestrial Physics, I work across the full stack of embedded hardware development: signal chain design (including high-order Chebyshev filters for DAQ modules), PCB design, firmware, and real-time monitoring tools for lab and field deployment.&lt;/p&gt;
&lt;p&gt;I care about building things that actually work under real deadlines — reliable, well-instrumented systems over polished-but-fragile ones. Comfortable moving between hardware, firmware, and tooling to get a project across the finish line.&lt;/p&gt;</description>
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