iHiFi . In pure electronic terms, the width of a communication channel, .. There are two main types of hi-fi pickup cartridge - the 'moving magnet' and 'moving ..
NXT Sound - FAQs . In any event, sound below about 200Hz does not carry much directional .. and perturbations with frequencies in excess of about 100Hz. This is the ..
Magnetic fields (EHC 69, 1987) . cells responded to different directional changes in the magnetic field. WT (1985) Coupling of living organisms to ELF electric and magnetic fields.
EMC Compliance Club . Physiological monitoring has a bandwidth of around 100Hz and is very .. All modern pacemakers have bi-directional radio telemetry systems that allow ..