Amron 2830R/24 Series, Руководство пользователя

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2830R THREE DIVER COMMUNICATOR USER MANUAL
2830R-UM REV 5.0
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4.7
Option Controls: Helium Speech Unscrambler /26DSP3
The controls for the DSP3 Helium Speech Unscrambler (HSU) are located in the section
immediately right of the DIVER 3 controls on the front panel.
4.7.1
On/Off Switch
–
Allows the selection of air (OFF) or helium (ON) operation. In
the OFF position, the
divers’ microphone signal bypasses the HSU. In the ON
position, the microphone signals are routed to the HSU and the tender can adjust
the controls as necessary.
4.7.2
Treble Boost
–
Selects the amount of gain added to the High Frequency (HF)
portion of the div
ers’ microphone signals. This compensates for the HF drop
-off in
the sensitivity of most microphones. The TREBLE BOOST feature allows for
optimum frequency enhancement and improved intelligible speech from the diver’s
voice.
4.7.3
Depth Control
–
Selects the amount of frequency correction performed by the
HSU to produce intelligible speech. This control uses a multi-turn potentiometer
and is equipped with a turn counting knob and lock. Once the desired setting is
reached, the lock can be used to prevent accidental changes to this control.
4.7.4
Noise Reduction Filter
–
The Noise Reduction Filter (NRF) uses a complex
Digital Signal Processor algorithm based on a statistical-model of human voice
activity to capture the background noise and reduce it without affecting the
divers’
speech. The noise level can be reduced by up to 17 dB.
4.8
Option Controls: Wireless Tender /28A Option
The controls for the Wireless Tender Option are located in the section immediately right of the
DIVER 3 controls on the front panel. The Wireless Tender Option is for four-wire (Full Duplex)
operation only. System comes standard with a remote wireless tender module.
4.8.1
Wireless Option Panel
–
Comes standard with antenna and power on/off
switch. The “ON/OFF” switch powers the wireless PC card inside the
communicator. The antenna has a swivel and tilt that allows the antenna to be
folded down during shipment. For operation, the antenna should be pointing
upwards. For installations where the Diver Communicator is located inside a
structure, there is an optional Remote Antenna kit available. This kit allows the
antenna to be located outside the structure for maximum effective range.
IMPORTANT : When the wireless option is not used, turn the option panel switch to
“OFF”. When option panel switch is turned “ON”
, the wireless remote should be
“ON”. Otherwise a static noise may be heard through the communicator’s panel
speaker as it scans for available Remote Wireless Tender.
4.8.2
Remote Wireless Tender Module
–
This module comes standard with an
internal rechargeable battery. Headset and external 110V charger jacks are located
on remote module.