Mada NDB (IS)

Name: Mada NDB
Identifier: IS (.. ...)
Frequency: 290 KHz
Location: -23.544800 | 23 32.687988 S | S23 32 41, -46.711700 | 46 42.702026 W | W046 42 42
Intended use: low-level enroute navigation (medium power)
Country: Brazil
Associated airport: Congonhas Airport