Work · alternatives · 2026

24 alternatives to Smart IP67 digital radio BF-TD511
IP67 Two-way Radio
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites. Smart IP67 digital radio BF-TD511 launched in 2020; newer entries below may have overtaken it.
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📡 An AX.25 packet radio chat protocol with support for digital signatures and binary compression. Like IRC over radio waves. - brannondorsey/chattervox
2018 · github.com · its alternatives →
- 2IR
2020 · stdw.github.io · its alternatives →
- 3

Hi HN, r2t2 is a command-line tool for transmitting data through sound using the PC speaker on the motherboard. The name of the tool is a reference to the R2-D2 robot from Star Wars :) In short, you type some message and it gets FSK modulated and transmitted via sound through the PC speaker. Note that this is the speaker/buzzer that you connect to the motherboard and not the regular speakers that you connect to the sound card. I also made a simple web page that listens to the sound emitted by r2t2 and decodes the received messages. The page can be used by simply opening it on your phone…
2021 · github.com · its alternatives →
- 4
Switchboard▲406Turn your phone into a handsfree intercom
2018 · switchboard.audio · its alternatives →
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Full network stack over sound -- lwIP driver for libquiet - quiet/quiet-lwip
2016 · github.com · its alternatives →
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Radio LLM▲141Off-grid, disaster-proof LLM platform using Meshtastic
2024 · github.com · its alternatives →
- 9
We built the smallest dual-band aircraft trackerfrom $48/mo▲95I grew frustrated with closed source ADS-B receivers a few years ago, and wanted to build a true low cost embedded ADS-B receiver from scratch for low power applications. I ended up developing a custom radio frontend that uses RP2040 PIO for Mode S preamble detection and demodulation, and also released the first open soruce implementation of UAT decoding on an RF MCU from TI (which works somewhat beyond the publicly stated specs for the chip). Today, ADSBee is a fully featured dual-band ADS-B receiver, with Mode S, ADSB, UAT ADSB, UAT TIS-B / FIS-B, a ton of configurable reporting…
Aug 2026 · pantsforbirds.com · its alternatives →
- 10
radio-active▲80Play more than 30K radio stations from your terminal
2021 · github.com · its alternatives →
- 11FR
Deliver real-time data and low-latency WebSockets & pub/sub at the edge with Fastly. Scale chat, IoT, live apps and messaging with a self-managed infrastructure.
2017 · fanout.io · its alternatives →
- 12

Hello all - Inspired by many who build/assemble for their daughters/sons, I took cue and assembled a two-way communication between my son and his friends. Nothing spectacular. Just basic stuff to talk. He is eleven and doesn't have a phone. I wanted him to talk to his friends without an account, a feed, or an algorithm in between, so I built five ESP32-S3 touchscreen units, one per kid. Tap a friend's name, their unit rings. Tap Everyone, they all ring. Each unit dials outbound to a relay I run, so no house opens a port. Audio is uncompressed 16 kHz PCM in 20 ms frames, AES-256-GCM…
Aug 2026 · sundaradnus.ca · its alternatives →
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Simple mDNS based reverse proxy for personal infrastructure. - whytheplatypus/switchboard
2020 · github.com · its alternatives →
- 15

PandwaRF: RF analysis tool with a sub-1 GHz wireless transceiver controlled by a smartphone or - Home · ComThings/PandwaRF Wiki
2016 · github.com · its alternatives →
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WFB-ng release 24.08 is out. This is a core transport protocol used by OpenIPC FPV
2024 · github.com · its alternatives →
- 21

Kompatibles Arista Networks CAB-Q-Q-100G-1M BlueLAN
2020 · blueoptics.de · its alternatives →
- 22

2021 · youtube.com · its alternatives →
- 23

A field guide to the hidden world of digital networks
2015 · architectureofradio.com · its alternatives →
- 24

I built a software-defined radio transmission platform that runs on a Raspberry Pi Zero W. It spawns its own WiFi hotspot and serves a web UI — connect from any device and you have a portable RF signal generator with 12 transmission modes: FM broadcasting with RDS, FT8, RTTY, FSK, POCSAG paging, Morse code, SSTV image transmission, voice cloning via live mic, spectrum painting, IQ replay, carrier wave, and frequency sweeps. Everything runs through a browser interface. Upload audio files, type messages, configure frequencies, and transmit. The Pi's GPIO pin does the actual RF generation via…
Feb 2026 · github.com · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →