Shortwave in SDRCrew: HF tuning + know what you will hear

Shortwave (2.3-26.1 MHz) is probably the most fascinating part of the radio spectrum - and the hardest to explore "at random": signals that bounce off the ionosphere and arrive from thousands of kilometres away, but with times and frequencies that change season by season. Turning the knob hoping to find something worked in the 1980s. Today we can do better.

What the tab does

Full HF reception (2.3-26.1 MHz), with direct sampling enabled by default: below about 24-28 MHz many RTL-SDR dongles receive nothing without it, since shortwave is below the classic tuner's limit.

A real schedule, not a static list: almost 8,000 broadcast transmissions catalogued (source EiBi, updated each broadcast season), with station, language, target area and time.

Search by station name or language, and an "on air now" filter that compares the current UTC time with the schedule - no more wasted attempts on a station that perhaps only broadcasts at night.

Double-click a result and the receiver tunes there, ready to listen.

A detail I am proud of: the data comes from EiBi (Eike Bierwirth), a source that explicitly states it can be freely redistributed - no scraping of third-party sites that would not allow it. A small thing, but for me doing things properly matters.

As always, free and open. If you find a missing station or a wrong time, write to me from the contacts in the Info tab - and if the project is useful to you, a coffee to support its development is always welcome ☕.