There goes all my phone sponsorships… - RF Chamber Explainer
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Promos
Thanks to Raymond EMC for sponsoring this video! Check them out today at lmg.gg Raymond EMC specializes in the engineering, design, fabrication, installation, and testing of custom radio frequency (RF) shielded enclosures, reverb, and anechoic chambers for military, government, automotive, high-tech, medical, medical, and industrial applications. Facebook: @RaymondEMCEnclosuresLtd LinkedIn: linkedin.com Twitter: twitter.com ► GET MERCH: lttstore.com ► LTX 2023 TICKETS AVAILABLE NOW: lmg.gg ► GET EXCLUSIVE CONTENT ON FLOATPLANE: lmg.gg ► SPONSORS, AFFILIATES, AND PARTNERS: lmg.gg ► EQUIPMENT WE USE TO FILM LTT: lmg.gg ► OUR WAN PODCAST GEAR: lmg.gg FOLLOW US --------------------------------------------------- Twitter: twitter.com Facebook: @LinusTech Instagram: @linustech TikTok: @linustech Twitch: twitch.tv MUSIC CREDIT --------------------------------------------------- Intro: Laszlo - Supernova Video Link: youtube.com iTunes Download Link: itunes.apple.com Artist Link: soundcloud.com Outro: Approaching Nirvana - Sugar High Video Link: youtube.com Listen on Spotify: spoti.fi Artist Link: youtube.com Intro animation by MBarek Abdelwassaa @mbarek_abdel Monitor And Keyboard by vadimmihalkevich / CC BY 4.0 geni.us Mechanical RGB Keyboard by BigBrotherECE / CC BY 4.0 geni.us Mouse Gamer free Model By Oscar Creativo / CC BY 4.0 geni.us CHAPTERS --------------------------------------------------- 0:00 Intro 1:08 Faraday Cage Overview 2:41 Raymond EMC Install 4:18 Grounding the Enclosure 6:02 The Door 7:02 Spectrum Analyzer 8:30 Wave Guide 9:23 Power 10:55 Recap 11:24 Wall Lining
The video opens with a reveal of a brand new electromagnetic compatibility EMC chamber, highlighting the transformative testing capabilities it provides. The host explains how the chamber blocks wireless signals and how quickly signal networks disappear once the door is closed, illustrating the Faraday cage concept in a real lab setting. The discussion then pivots to design nuances, emphasizing that not every Faraday cage is a shielded enclosure suitable for precise testing. The team walks through the key constraints, such as ensuring a homogeneous ground, avoiding unintended antenna paths, and recognizing how holes, gaps, and material choices can influence test results. The segment also delves into the practical build aspects, including a concrete floor pour, insulating layers, proper bonding to ground, and the peril of even a single loose screw undermining the entire enclosure, with real-life demos to prove the point. The sponsor integration with Raymond EMC is acknowledged, framing their expertise as essential for achieving reliable RF testing conditions and accurate lab results.
Topics · engineering · science · technology · lab_testing
Questions answered
- What is the fundamental purpose of the RF chamber in this video?
- The RF chamber provides a controlled, electromagnetically shielded environment to test devices without background electromagnetic interference, ensuring accurate lab measurements and repeatable results.
- Why is grounding the enclosure important in the build process?
- Grounding ensures the electrical charge is homogeneous across the enclosure, preventing currents from creating unintended antennas or leakage paths that would compromise test results.
- What role does the waveguide play in testing?
- The waveguide provides a specially designed hole for data and power that blocks certain frequencies while allowing necessary connections, using length and geometry to cancel unwanted frequencies.
- How does the video verify that the chamber works as intended?
- They use a spectrum analyzer and a one gigahertz signal to show that when the door is closed, the signal peak disappears, demonstrating effective shielding.