Page 5
6.1.
Storing and un-storing a selected level of noise cancelling
Once a suitable filter level has been selected, this level can be stored. This is achieved by
pressing the FUNCTION button for a few seconds. The unit will respond with a tone and
the STATUS indicator will turn Green. Having stored a desired level, brief presses of the
FUNCTION button will now cause the unit to cycle between noise cancelling OFF
(STATUS Indicator – RED) and noise cancelling ON at the saved level (STATUS Indicator
– GREEN). To un-store the saved level, press and hold the FUNCTION Key again until
the unit emits a tone. The STATUS indicator will change back to Orange and the unit will
now cycle through the various levels of noise cancelling.
Note:
It is advisable not to drive
a vehicle and change the filter level at the same time.
Note:
Higher levels of noise cancellation will remove virtually all the background noise, but the
user will note that the audio may be slightly distorted if high levels of background noise are
present. Switching off the noise cancellation will restore the audio. If there is a lot of noise
present on the audio signal it may be necessary to increase the output volume when
listening with the noise cancellation switched on, once the noise has been removed.
If the
volume is increased and the noise
cancellation is then switched off, the resulting
unprocessed signal will be at a higher level. Care must
be taken to avoid excessive signal
levels to avoid possible damage to your hearing or equipment. bhi Ltd does not accept
responsibility for damage to equipment or hearing however caused.
7.
Sleep mode
With power applied to the speaker it can be manually put to into sleep mode by pressing
and holding the FUNCTION button for approximately 6 seconds. You will firstly hear a low
tone then after approximately six seconds a high tone, releasing the button after this will
leave the speaker in sleep mode. The unit consumes very little current (3mA) and the
STATUS indicator flashes red every 15 seconds to show that it is still powered.
7.1.
Waking the unit up
To wake the unit up, simply press the FUNCTION button momentarily and the unit will start
to operate in the last mode it was set to.
7.2.
Auto sleep function
If the unit fails to see any audio above the minimum required level for greater than 30
minutes, the unit will place itself into Sleep mode. The unit consumes very little current
(3mA) and the STATUS indicator flashes red every 15 seconds to show that it is still
powered. To wake the unit up, press the FUNCTION button and the audio will be
restored.
8.
Specifications
DC Power
DC input voltage
10 to 16 Volts DC.
Current
2
Amps
maximum
Protection
Over current and reverse polarity protected