Show HN: Web App Uses RTL-SDR to Align HDTV Antenna

#1

Post by robotastic » Mon, Jul 13, 2026, 2:34 AM UTC

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!

Show HN: Web App Uses RTL-SDR to Align HDTV Antenna
tunerscope.com

Re: Show HN: Web App Uses RTL-SDR to Align HDTV Antenna

#2

Post by AlexSSSaint » Mon, Jul 13, 2026, 11:58 AM UTC

[dead]

Re: Show HN: Web App Uses RTL-SDR to Align HDTV Antenna

#3

Post by isawczuk » Wed, Jul 15, 2026, 11:44 AM UTC

I love it. Great example of using web usb.

Re: Show HN: Web App Uses RTL-SDR to Align HDTV Antenna

#4

Post by qdotme » Wed, Jul 15, 2026, 12:11 PM UTC

Lol. Full circle.

RTL-SDR was originally the DVB-T tuner, hacked for SDR, to become.. a DVB-T tuner.

Great job!

Re: Show HN: Web App Uses RTL-SDR to Align HDTV Antenna

#5

Post by ayarseus » Wed, Jul 15, 2026, 1:21 PM UTC

Amazing. Thank you because TIL about WebUSB.

Re: Show HN: Web App Uses RTL-SDR to Align HDTV Antenna

#6

Post by ejanus » Fri, Jul 17, 2026, 11:26 AM UTC

qdotme wrote: post #4

Lol. Full circle. RTL-SDR was originally the DVB-T tuner, hacked for SDR, to become.. a DVB-T tuner. Great job!

Is US using DVB-T standard?

Re: Show HN: Web App Uses RTL-SDR to Align HDTV Antenna

#7

Post by qdotme » Mon, Jul 20, 2026, 1:11 PM UTC

ejanus wrote: post #6

qdotme wrote: post #4

Lol. Full circle. RTL-SDR was originally the DVB-T tuner, hacked for SDR, to become.. a DVB-T tuner. Great job!

Is US using DVB-T standard?

ATSC. Technically orginal RTL tuners handled both (in really thin gateware, which is why the chip was so hackable for SDR, you just turned its debug mode and it would stream its IQ values).