41
Wireless Security Measures
Security of the wireless signals is assured through device system
design that includes:
• Individual MAC address for each unit which is checked during
each transmission.
• A built-in pairing table which specifies valid and legitimate
pairing among units
• A proprietary communication protocol which checks the
package numbers during each transmission.
• A Cyclic Redundancy Check (CRC) to check data validity and
correct errors.
GUIDANCE AND MANUFACTURER’S DECLARATION
Electromagnetic emissions
The Melodia™ series hearing aids are intended for use in the elec-
tromagnetic environment specified below. The customer or the
user of a Melodia™ series hearing aid should assure that it is used
in such an environment.
Emissions test Compliance Electromagnetic environment
- guidance
RF emissions
CISPR 11
Group 1
The Melodia™ hearing aid uses
RF energy only for its internal
function. Therefore, its RF
emissions are very low and are
not likely to cause any interfer-
ence in nearby electronic
equipment.
RF emissions
CISPR 11
Class B
The Melodia™ hearing aid is
suitable for use in all establish-
ments, including domestic es-
tablishments and those directly
connected to the public
low-voltage power supply net-
work that supplies buildings
used for domestic purposes.
Harmonic
emissions
IEC 61000-3-2
Not
applicable *)
Voltage fluctu-
ations/ flicker
emissions IEC
61000-3-3
Not
applicable *)
*) Battery powered equipment
