fm
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fm
G
enie
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Batteries &
charging
36
User Operating Guide – Mic muting
4
fm
G
enie
fm
G
enie
Microphone muting is operated by pressing the star function
once. When muted, the
status display shows the crossed microphone
symbol
to indicate that the
external microphone is being muted.
Another short press of the
button will return to normal operation.
ENVIRONMENTAL MICROPHONE MUTING
(Default setting: off)
Environmental microphone muting will mute a lapel or other microphone
connected into a receiver.
BONE CONDUCTION
An fmGenie receiver works as a really good bone
conduction amplifier. More than one user has
commented that a bone conductor on an fmGenie has
a much stronger stimulus than a modified post-aural
bone conduction hearing aid.
The operation and settings for an fmGenie for use with
bone conductors are the same as for headphones.
A monaural headband and single bone conductor is
part number MBONEM and a Binaural headband with
two bone conductors is part number MBONEB.
Move switch 4 up to allow environmental microphone muting
The advantage of muting the environmental microphone is a reduction of
unwanted background noise pickup with a resulting improvement in
signal to noise ratio (intelligibility).
CHOICE OF BATTERY
The fmGenie
and
both use two AA batteries. We advise using
rechargeable batteries and a twin tail charger.
Rechargeable batteries - order code MBRAAX4
Connevans supply AA Nickel Metal Hydride (NiMH) 2200 mAh
capacity rechargeable batteries for use with fmGenie equipment –
higher capacity batteries can be used but may not give a longer
operating time.
NiMH batteries do not suffer from a ‘memory effect’ nor do they
need to be discharged before recharge. Just as for a mobile phone,
watch the battery level display and recharge when convenient.
A fully charged battery will last around 40 hours, can be recharged up to
1000 times and once charged will retain useable charge for up to a month.
In practice you can expect rechargeable batteries to last around 2 years in
service.
Non rechargeable batteries
Alkaline non rechargeable AA batteries can also be used and are ideal
for intermittent use such as for DDA applications.
An alkaline battery will last around 120 hours and has a long shelf life.
FITTING BATTERIES
To fit the batteries, slide open the battery cover, the technique is a
combination of ‘squeeze, thumb and wiggle’– you won’t break it and the
firm fit stops the battery cover accidentally falling off.
When using non rechargeable batteries ensure that
users
never
attempt to recharge them.
To allow the processor circuitry to reset itself when
replacing batteries, please ensure that you wait
about 15 seconds with no batteries fitted.
David’s tip: write or label the date on batteries
before fitting them – it is amazing how times flies!
Please refer to Appendix 5 for battery handling precautions.
Batteries & charging
Binaural headband with bone
conductors and ‘V’ patch lead
