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Web App Uses RTL-SDR to Align HDTV Antenna

Web App Uses RTL-SDR to Align HDTV Antenna

by robotastic·Jul 13, 2026·7 points·0 comments
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AI Analysis

●●●BangerBig BrainNiche GemShip It

WebUSB spectrum analyzer beats guessing games with real-time signal metrics.

Strengths
  • •Zero-install WebUSB implementation runs entirely in the browser without drivers.
  • •Snapshot A/B comparison mode lets you verify antenna adjustments against a frozen reference.
  • •Analyzes carrier-to-noise and multipath echo, not just raw signal strength.
Weaknesses
  • •Limited to Chromium browsers; Firefox and Safari users are completely locked out.
  • •Requires specific RTL2832U hardware dongles that casual users may not own.
Category
Hardware
Target Audience

Cord-cutters and DIY antenna users

Similar To

HDHomeRun · SDR# · rtl_433

Post Description

I was sick of losing the Telemundo signal during World Cup, so I built a Web App that uses a local RTL-SDR dongle to analyze the HDTV signal and help you point your antenna... GOAAALLLL!

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