Longwave

In longwave refers to parts of the broadcasting spectrum that has longer wavelengths. These are typically kilometer-sized or greater. This was when the broadcasting spectrum was considered to consist of long, medium and short wavelengths. For broadcasting is it until 300 kilohertz.

Longwave is used to broadcast signals for date en hour. The  clock Junghans Mega can receive such signals.

Longwaves have the advantage that diffraction helps them travel far.

 References 

Category:Radio