User's Manual

16
Caution
Wear the hearing protection in areas with noise without interruption.
Wear the hearing protection only like is described in this operation instructions.
Check the device periodically for signs of fractures, cracks and wear.
During disregard the protective effect of the hearing protection can be seriously impaired.
This hearing protection should not be carried if the danger exists that the cord gets caught or
drag along during carrying.
By a mechanical hit against the ear hanger can result harmful noise level.
d. Connect the PTT button via the plug and the radio adaptor to the radio. Switch the radio on and
adjust at the radio the desired volume of reception for the ear microphone.
CAUTION!
Before each start of operation control the volume of reception and adjust it, if necessary. Very
loud signals could damage your hearing.
Observe the manufacturer’s operating instruction for the radio device.
e. Transmitting and receiving: For transmitting (speaking) press the PTT button or the CT-Wireless-PTT
and keep it depressed. For safety reasons, keying of the CT-Wireless-PTT is limited to 30 seconds.
The radio is switched to transmission. You can speak as long as you keep the transmit button
depressed. Let the transmit button go in order to switch the radio back to standby/receiving (hearing).
CT-ClipCom Digital ear microphone
The DNR electronics (Digital Noise Reduction) filter and eliminate ambient noise from the voice
signal.
Radio messages are heard on both sides. In case a PTT transmit button is actuated the ear
microphone in the right ear switches from earphone to microphone operation. Consequently, the
ambient sound reception (ASR) of this ear microphone is not active.
CT-ClipCom Digital gooseneck microphone
The noise cancelling gooseneck microphone works without DNR function.
During activation of the PTT button, ambient sound reception is active on both sides.
4. Safekeeping – storage
After use, keep the cleaned devices in a clean and dry place at normal room temperature and at normal
relative air humidity.
5. Maintenance
5.1 Visual inspections
Check the CT-ClipCom Digital and particularly the cables and connectors periodically for signs of
fractures, cracks and wear. Check ear moulds and earphones/ear microphones after every use for
pollution.
Pollution can be the cause for skin irritation and malfunction.
5.2 Cleaning
ATTENTION!
When cleaning, make sure that no moisture penetrates inside the device. Do not use any
solvents (e.g. benzine, alcohol, sterilizing agents, etc.). After cleaning, keep earphones/ear
microphones unpacked until completely dry.
Obstructed sound channels of ear moulds and ear plugs cause poor communication in transmitting
(speaking) and reception (hearing). For periodical cleaning of components we recommend special
cleaning tissues (see chapter 6).