In view of public concern that pulsed signals from mobile phones might interact
differently with biological components from continuous RF signals, it is surprising
that there has been almost no discussion of how this might arise.
It is well known that pulsed RF fields can result in acoustic effects, which is a thermal effect and is
only detectable at high-level powers. So there would need to be another mechanism
if, for example, biological effects of pulsing were to occur at the power levels of the
GSM or TETRA handset .