My playground for
testing new ideas
Dotish Labs is my playground for testing new ideas and gathering user feedback.
I appreciate you taking the time to visit the site and share your thoughts. My goal is to create educational projects that help people while also supporting internal development and experimentation.
Explore the projects, try what interests you, and leave honest feedback.
Thank you for being here.
Explore
Browse production apps, prototypes, concepts, and retired experiments from the wider Don Sylvester ecosystem.
Read the ask
Each entry names what it is, what stage it's in, and the question I'm testing right now.
Tell me
Give a thumbs up or down and a sentence on why. Useful beats polite.
Shape the bench
Your feedback helps decide what stays experimental, moves to production, or quietly retires.
The project lab
Browse the live work, prototypes, and loose ideas that do not all belong on a polished portfolio page.
Live Earth and Radio Signals
Ambient proof that the lab is alive: real-time earth data beside public radio receivers used for signal awareness, listening, and resilient communication.
Global Earthquake Pulse
USGS · live · 24hEmergency Radio Signals
public SDR · live receivers
Public software-defined radio receivers let you listen across HF/VHF bands from stations around the world. Pair them with seismic data for a broader sense of live earth and communication signals.
Shortwave SDR map
KiwiSDR / WebSDR / Web-888
A free-to-listen map of internet shortwave receivers, useful for finding browser-based listening points around the world.
Receiverbook
SDR directory
A broad directory of KiwiSDR, OpenWebRX, and other online receivers with locations, modes, and coverage notes.
OpenWebRX directory
HF / VHF / UHF
OpenWebRX receivers expose live spectrum views and audio controls directly in the browser.
WebSDR list
classic WebSDR
Legacy and community WebSDR receivers for listening across amateur, broadcast, and utility bands.
Quick listening guide
- 1. Pick a receiver near the event. Radio is local and propagation-dependent, so a nearby receiver is usually better for VHF weather or marine traffic.
- 2. Match the receiver to the band. HF receivers cover long-range shortwave; VHF-capable receivers are needed for NOAA Weather Radio and marine channels.
- 3. Tune, then adjust mode. Use FM for NOAA/marine VHF, USB for 20m HF voice, and LSB for 40m HF voice.
NOAA Weather Radio
162.400-162.550 MHz · FM
Seven U.S. weather channels carry continuous forecasts, watches, and warnings where a VHF receiver covers the local transmitter.
Marine distress calling
156.800 MHz · VHF Ch 16
Public marine safety and distress calling channel; useful near coasts, harbors, and waterways when a receiver covers VHF marine.
Hurricane Watch Net
14.325 MHz USB · 7.268 MHz LSB
HF amateur hurricane net frequencies used when activated; propagation and storm status determine what you can hear.
Listen only, follow local laws, and use official alerting channels for safety decisions. Many public-safety systems are encrypted or not carried by public SDR receivers.