sub band meaning in Hindi

Examples

1. :: Er . . . Traditional FM radio uses a purely analog modulation method ( ignoring some of the sub band extensions ).
2. The frequency ranges allocated to them are still known today throughout much of the world as the Novice Sub Bands even though it is no longer possible to obtain a Novice class license in the US.
3. In some areas there is some commercial usage of the'BBC local'sub bands while in Scotland, Wales and Northern Ireland the'Radio 4'and'BBC Local'ranges are used interchangeably.
4. Any arrangement that efficiently uses the 108 MHz bandwidth in the frequency range 698-806 MHz must thus have more than one duplexer .  Dual duplexer means that the handset has 2 duplexers, one per sub band as illustrated in figure 8.