How the bookmarks work
Bookmarks (sometimes also referred to as markers) have been introduced to allow quick tuning of predefined frequencies, and as a way to allow users to qickly identify transmissions without the need to be familiar with the receiver's location and HF environment.
They're the little colored "bubbles" that show up above the frequency bar on the top. They can come from three different sources, which correspond to the color of the bookmark:
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Bandplan frequencies (FT8 & co) in green, common amongst all users. Some specific modes have been tied in to specific frequencies, these are kept in the bandplan (
bands.json) and are subject to little changes over time. The bandplan can be modified by the receiver operator. -
Server-side bookmarks in yellow, common amongst all users. These are the classic bookmarks where you'd put your repeaters and radio stations. They can be modified by the receiver operator in the "Bookmark editor" in the web configuration.
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Client-side bookmarks in light blue, local to the current user. These bookmarks can be created using the bookmark button on the receiver panel and are stored in the browser's localstorage. They are not sent back to the receiver, and cannot be shared with other users.
Starting with OpenWebRX 1.0, no more example bookmarks are installed with the receiver. You can define your own in the web-based settings area of the receiver.