Alternatives
Products that do what Web App Uses RTL-SDR to Align HDTV Antenna does
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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There are lots of RTL-SDR applications, but you have to install them. I used the HTML5 USB API that exists in Chrome (did you know about it?) to build one that you can run straight from your browser, on your computer or your Android phone.
2024 · radio.ea1iti.es
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Hi everyone! Shortly after publishing my iOS 4 jailbreak last October[1], I got to work on my next hobby project: a from-scratch homebrew GPS receiver, which can solve the user’s location solely from billions of radio antenna samples. I took a commodity SDR (alongside the Python standard library and numpy) and built a signal processing pipeline that can detect and track GPS satellites over many minutes, drop and pick up satellites as they come in and out of view, and precisely determine the user’s position and clock inaccuracy. All told, gypsum can go from a cold start to a fix on the user’s…
2024 · axleos.com
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2016 · gammarf.io
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2024 · star.conor.link
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2020 · github.com
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I've been working on a football pass visualiser for the past week. It uses open data from StatsBomb to analyse and visualise passing patterns, allowing users to explore and filter the data by pass distance, team and players.
2024 · statsbomb-3d-viz.vercel.app
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2024 · github.com
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Apr 2026 · github.com
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Howdy HN! I find myself testing my ping from time to time, especially when my internet seems wonky while WFH. It feels like there should be an easier way test my ping than puling up a terminal or a complex web app - especially when I'm on my phone or any other device that doesn't have a terminal. I figured I should be the change I wish to see in the world and created this super light ping test. I also created a latency monitoring solution (https://github.com/cjjeakle/network-monitor), feel free to clone and try it out! I know there are a lot more mature monitoring…
2022 · ping.projects.chrisjeakle.com
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2018 · github.com
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2019 · npmjs.com
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I've been working on GeoTraceroute for a while and just shipped v2.3 with submarine cable inference. A few things that might interest HN: - 320 community-contributed nodes across 50 countries, all volunteer-run - Three views: 3D globe with day/night rendering, 2D map, and a topological mode that infers submarine cable routing - The submarine cable inference is the part I find most interesting. Since cable routers don't respond to ICMP, the underwater segments are invisible to standard traceroute. The tool detects ocean crossings by geolocation delta between consecutive hops, then infers…
Apr 2026 · geotraceroute.com
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EZ-TRAK is a comprehensive satellite tracking suite designed for amateur radio operators, weather satellite enthusiasts, and educational purposes. The software interfaces with an EZ-TRAK BLE device which is mounted to a lightweight foldable portable satellite dish antenna to hand track satellites in real-time, providing azimuth and elevation data for optimal antenna positioning.
2025 · github.com
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A fun weekend project: https://www.modembin.com It's a pastebin, except text/files are encoded into .wav files using real FSK modem audio. Image sharing is supported via Slow-Scan Television (SSTV), a method of transmitting images as FM audio originally used by ham radio operators. Everything runs in the browser with zero audio libraries and the encoding is vanilla TypeScript sine wave math: phase-continuous FSK with proper 8-N-1 framing, fractional bit accumulation for non-integer sample rates, and a quadrature FM discriminator on the decode side (no FFT windowing or…
Mar 2026 · modembin.com
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https://play.google.com/store/apps/details?id=com.fitzytv.an... Hey HN community! I'm James and I'm the developer for FitzyTV - a new Android app that acts as a cloud DVR for the TV Everywhere channels you get access to as part of your cable subscription. Works with any US cable/OTT provider. Please check it out using the play store link above and let me know what you think. #1 priority is new channels so let me know which ones should be added next. Also feature requests are appreciated!
2017
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Scheduling meetings across multiple time zones has always been painful for me, especially across daylight saving time transitions. So I built a visual timeline that makes it easy to find overlapping availability. Add your locations, drag to select a time range, and share a link. Recipients see the proposed times in their local time zone automatically. A few things that might be interesting: * Location search over GeoNames with fuzzy matching using weighted edit distance, so typos and partial names still resolve correctly. * Shareable links encode the selected time range and locations in a…
Mar 2026 · timezoneapp.co
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