The base unit has a RF transceiver at 2,4 GHz, a microprocessor for data synchronisation and separa-
tion, D/A converter, a USB port to connect the host PC.
The base unit can be supplied with builtāin antennas (as standard), or with external antennas. The appli-
cation of the external antennas allows the extension of the useful working area of the system.
3.4 Docking module
When not in use, wireless electrodes should be in the docking module to recharge the batteries.
The recharge occurs by coils, attached to the electrodes support base and on the layer of the charger; the
energy transfer occurs via induction.
Coils on the docking are excited to resonance by adequate impulses in frequency and amplitude; when
the electrode is on the docking, there is an induced alternate current in the electrode coil that will be sent
to the battery for its recharging.
The docking module has a LED status indicator of the charger; during charging the LED is orange,
when charging is over, the LED turns to green, as described below.
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