VHFinfo

VHF channels, when you need them

Lookup the channel for a bridge, lock or VTS without digging through PDFs — especially when you cross a border. Open data, on a map or as a cockpit-style nearby list.

Open the map Nearby channels GitHub

What it is

VHFinfo.org collects maritime VHF information as GeoJSON — coordinates plus the details you actually use on the radio. The data lives on GitHub, so anyone can use it. Different frontends (this website, a SignalK plugin, your own app) all read the same source.

Ways to use it

Map

The mobile-friendly map uses your phone’s GPS so you can see which channels are nearby — or ahead of you, if the compass is available.

VHFinfo map on a phone, with nearby channel cards under the chart

Nearby

Need the channels without a map? The nearby page is a high-contrast list like the SignalK plugin: huge channel numbers, type, listen/announce/report, and distance.

Nearby VHF page on a phone: Demo Amsterdam selected, with huge channel numbers for Sector Stad and Schellingwoude

SignalK plugin

The SignalK VHFinfo plugin uses your boat’s GPS and heading, including offline. Configure the search beam length and angle, then show the same list on your phone or a custom instrument display.

SignalK VHFinfo plugin webapp showing nearby channels

SignalK on a custom display

Pair the plugin with signalk-instrument-display-plugin to put the same VHF info on any browser display in the cockpit.

VHFinfo shown on a custom SignalK instrument display

Adding or editing information

Open the map, find the area, and press the pencil button. You will be asked to sign in (a link in your email — no password). You stay on the same map: click an area to change it, or draw a new one.

Contact

Questions or comments: contact@vhfinfo.org.