Which is not a characteristic of an NDB?

An NDB, or Non-Directional Beacon, is a type of radio navigation aid that operates by transmitting radio signals in all directions. One of its key characteristics is that it uses non-directional signals, meaning that it does not provide directionality in the same way that a VOR (VHF Omnidirectional Range) does.

While NDBs do provide radio navigation, their accuracy is generally less than that of VOR systems. VORs are specifically designed to provide precise directional information, while NDBs can be influenced by atmospheric conditions and other factors, leading to less reliable accuracy for navigational purposes.

Additionally, NDBs operate on low frequencies, specifically in the range of 190 kHz to 535 kHz, which is another defining characteristic of this type of navigation aid. This low-frequency operating range is an essential aspect of how NDBs function and is important for pilots to understand when utilizing these beacons for navigation.

In summary, the correct choice indicates that NDBs are not more accurate than VORs, highlighting their limitations compared to other navigational aids in the aviation sector.