<?xml version="1.0" encoding="utf-8"?>
<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom">
    <channel>
        <title>DragonOS Focal Unattended RF/Voice Triggered WBFM Demodulation and File Save (RTLSDR, SDR4space)</title>
        <link>https://stream.echo6.co/videos/watch/631bfee0-7693-4748-b1cd-a32dbddcf8e3</link>
        <description>This video shows how SDR4space can be setup to run unattended and remotely detect/record transmissions. In this case, the SDR4space basic detection script was enhanced by the developer to perform WBFM demodulation and to save resultant files to local disk with date and time of detection. A short transmission was performed and captured in real time. This could be done headless, via ssh, or setup via a script to start at various times or on boot. A quick secure copy of the .wav file back to my local laptop allowed me to play it and hear audio with VLC player. Center Freq, trigger value, sample rate, SDR type, and any offset needed can be set in the java script shown in the video. Something I didn’t know about, the index modulation could’ve been changed from .8 to .3 for better audio results. The .8 in the video was more for pager detection. The script will be included in the next DragonOS release or if possible, provided in a scripted update. In the meantime, here's a copy that can be used on the latest DragonOS Focal or DragonOS Pi64, https://drive.google.com/file/d/1KYCLDE8gzu6s8hfiSNkgPUHNxlsx1j0c/view?usp=sharing Enjoy! Follow @cemaxecuter on Twitter for more DragonOS and SDR info. Become a patron @ https://www.patreon.com/cemaxecuter</description>
        <lastBuildDate>Sun, 26 Apr 2026 17:24:33 GMT</lastBuildDate>
        <docs>https://validator.w3.org/feed/docs/rss2.html</docs>
        <generator>PeerTube - https://stream.echo6.co</generator>
        <image>
            <title>DragonOS Focal Unattended RF/Voice Triggered WBFM Demodulation and File Save (RTLSDR, SDR4space)</title>
            <url>https://stream.echo6.co/client/assets/images/icons/icon-512x512.png</url>
            <link>https://stream.echo6.co/videos/watch/631bfee0-7693-4748-b1cd-a32dbddcf8e3</link>
        </image>
        <copyright>All rights reserved, unless otherwise specified in the terms specified at https://stream.echo6.co/about and potential licenses granted by each content's rightholder.</copyright>
        <atom:link href="https://stream.echo6.co/feeds/video-comments.xml?videoId=631bfee0-7693-4748-b1cd-a32dbddcf8e3" rel="self" type="application/rss+xml"/>
    </channel>
</rss>