> 2.4 | Ripple

> Another issue for power supply solutions is supply voltage ripple. Ripple can develop as a result of using a switched power supply circuit or as a result of disturbances caused by bad immunity to what is radiated from the own RF antenna. Please note that requirements here are far beyond those required to pass standard EMC tests.
> A U ripple requirement during a transmit burst should not exceed the following values (see [2] for module-specific voltage ripple conditions):

> • | V eff = 50mV @ f<200kHz

> • | V eff = 2mV @ f>200kHz