Show HN: We built the smallest dual-band aircraft tracker

Our tenants live in our property that is in a known Airport Influence Area ("AIA")[1] but this year, they reported to us the noise associated with the airport's Instrument Approach Procedures have increased. Airplanes arriving at the airport fly less than 1,000 feet in elevation right above our neighborhood. Even worse, airplanes come in consecutively so the noise is back to back w/o much reprieve.

The Noise and Capacity Office allows to manually report[2] such aircraft but I'm wondering if this device can detect these aircrafts which can lead to report submission. Any insight on doing this is appreciated!

[1] https://lacounty.maps.arcgis.com/home/item.html?id=7cb3fb165...

[2] https://viewpoint.emsbk.com/lgb7

Wow that's incredibly cool! I've been doing ADS-B with a tracker in my window using a pair of RTL-SDRs for more than a decade at this point. This seems like it could make a nice improvement to the Stratux project (ADS-B in / poor man's TCAS for small planes) as well.

I was about to say, “coolnamesalltaken already has a pretty small one,” but you are them! I’m definitely excited by this project, I have something I wanted to add ADS-B integration to and this looks like an even better option!

As for a question, how do you balance low power with performance? Is there a target range or use case to decide the performance envelope?

Looks good. However, an RF question: Both CC1314 and LR2021 are sub 1GHz components, are you not working outside their spec at 1.090GHz?

Related (I think). Others?

Show HN: ADSBee, an open source dual band embedded ADS-B receiver for anything - https://news.ycombinator.com/item?id=46459195 - Jan 2026 (3 comments)

Any plans to launch a competitor to the ForeFlight Sentry? The current Sentry is severely overpriced.

A normal non ADS-B iPad GPS flight module is almost 10% the price of the Sentry

https://www.garmin.com/p/645104/

Exciting! Picked up a dev kit to mess with and maybe build into my drone.

Finally UAT support!

How's the software side though?

Last time I looked dump1090 worked well, but there was no way to decode UAT packets.

Something on my to-do list, that's now become more plausible with Claude assisting the research.