Is used for generation and emission of amplitude-modulate high-frequency signals in a particular area sector. Beacon signal reception provides the aircraft with information about pivot point toward runway threshold or route
| For devices set in heated space and installations (inside operating room or ATC tower): | |
| the ambient temperature | from -10° C to +55° C |
| relative air humidity at +25° C | below 80% |
| atmosphere sub pressure | below 700 hPa (525 millimeter of mercury column) |
| For devices set in the outdoor air or not heated space: | |
| the ambient temperature | from -50° C to +70° C |
| relative air humidity at +25° C | below 98% |
| atmospheric condensed precipitatio | hoarfrost, dew |
| atmospheric precipitation | rain, snow |
| air-flow rate for antenna-feeder devices, km/h | below 200 |
| atmosphere sub pressure | below 700 hPa (525 millimeter of mercury column) |
| operation (carrier) frequency, MHz | 75 |
| power output, W | from 0,1 to 1,3 |
| Type | Frequency, Hz | Manipulations |
| Inner radio beacon | 3000 | dot |
| Intermediate radio beacon | 1300 | dot-dash |
| Outer radio beacon | 400 | dash |
| Type | Frequency, Hz | Manipulations |
| Inner radio beacon | 3000 | dot |
| Intermediate radio beacon | 1300 | dot |
| Intermediate radio beacon | 400 | dash |