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Nucleus 8 Sound Processor User Guide 103
Wireless communication link
The wireless communication link operates in the 2.4 GHz ISM
band using GFSK (Gaussian frequency-shift keying), and a
proprietary bidirectional communication protocol. It
continuously switches between channels to avoid interference
on any specic channel.
ꞏ The remote control operates over 4 channels, over a
distance of at least 2 metres from the sound processor.
It indicates via its display when the sound processor is
out of operating distance (or switched o) or when the
link is interrupted due to broad spectrum interference
(see remote’s user guide for more information).
ꞏ The True Wireless accessories operate over 16 channels,
over a distance of at least 3 metres for the Phone Clip,
and 7 metres for the Mini Microphone and TV Streamer.
Bluetooth® Low Energy also operates in the 2.4 GHz ISM band,
using frequency hopping over 37 channels to combat
interference. Operating range is at least 7 metres, and the app
indicates when the sound processor is out of operating distance
(or switched o) or when the link is interrupted due to broad
spectrum interference.
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