Rumors are leads to hidden sites. Tune SRS to the rumor, follow its A/N course through the search area and land by the white-flagged tyre to make the site fully usable.

Yes. SRS is required for A/N exploration. The personal search signal is sent through SimpleRadio Standalone only after it verifies that your radio is tuned to the rumor's exact frequency and modulation. Without SRS, or with either setting wrong, you receive no A/N signal.

1. Open the rumor in F10 > Other > Tycoon > Navigation > Current rumors or on the map.
2. Tune its exact frequency and modulation in SRS.
3. Fly into the search circle along the broad direction from the named anchor airfield.
4. A steady tone means you are on the course; Morse A or N tells you which side of it you have drifted to.
5. Land by the white-flagged tyre. It marks the real site, not the centre of the search circle.

The Gazelle hears a wider, more forgiving course and slightly farther away than other airframes. After mapping, the tyre becomes friendly and the site's normal map details, F10 navigation and beacon unlock.

Only a limited number of rumors can be open and ignored leads eventually lapse. Tier 2 and Tier 3 sites also need a regional Survey Station. Exploration and Direction Finding explains rumor states, tiers and station networks.