National Frequencies Search

The National tab lists frequency categories that apply UK-wide rather than to a specific airport or area — emergency and common channels, air-to-air refuelling, squadron nets, low-level frequencies, JTAC/FAC, and similar categories. Because these aren’t tied to a location, results don’t show a distance column. The tab has its own filter box plus All and Clear controls for quickly selecting or deselecting categories.

This is a separate tab from the “Include National Frequencies” option available on location searches — see Search Options — Range, ATC & National Frequencies if you want to add national channels to a location-based search instead of searching them on their own.