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GSM DC-Underwater transceiver
The GSM DC underwater transceiver unit incorporates the latest innovations in underwater ultrasonic 2-way radio communication. It is designed for use with all Neptune Series masks, but can be used on any full face mask equipped with a standard DIN female connection
-Wireless ultrasonic unit
-Digital driver for vocal message equalization
-Automatic system for activating transmission (DAT)
-Double transceiver channel
-Automatically activated once submerged in water, receiving also automatic
-System type H-SSB
 
GSM-Underwater transceiver
The GSM is the basic underwater transceiver unit. It has manual mode only with PPT (push to talk) transmission and automatic receiving. It operates on only one channel.
-Wireless ultrasonic unit
-Features a digital driver for vocal message equalization
-Double transceiver channel
-Automatically activated once submerged in water, receiving also automatic
-System type H-SSB
 
NACS-Neptune Adjustable Communication Support
NACS is an adjustable support arm for the GSM DC, GSM, or M101A receiving unit.
-Installed on left side of visor on mask
-Prevents the communication unit from hanging off the mask strap
-Allows mask strap to easily slide through buckle
-Can be adjusted for tilt and distance between the communication unit and visor
-All GSM models must be used with NACS
 
M-105 Digital-Surface transceiver
M-105 Digital is a surface to diver communication unit which allows surface personnel to talk with divers in the water and vice versa. It has one channel. The M-105 Digital comes standard with the following items:
-Headphone connection
-Volume control
-Loud speaker
-Water resistant case with pressure compensation valve
-Battery charger
-Connector and cable for external 12 VDC source
-Transducer cable bag
Available accessories: audio out cable, headphones
 
M-105 Digital DC-Surface transceiver
M-105 Digital DC is a surface to diver communication unit which allows surface personnel to talk with divers in the water and vice versa. It is like the M-105 Digital, but with the addition of a second channel. The M-105 digital comes standard with the following items:
-Additional second channel
-Headphone connection
-Volume control
-Loud speaker
-Water resistant case with pressure compensation valve
-Battery charger
-Connector and cable for external 12 VDC source
-Transducer cable bag
Available accessories: audio out cable, headphones
 
M-105 D Mariner-Surface transceiver
M-105 D Mariner is a surface to diver communication unit that may be installed on board a boat. It has the same operations and technical characteristics of the M-105; however, the M-105 Mariner uses a 12 v power source. The cable and transducer may be made to different lengths to accommodate fixed installations. It not only connects to a main power supply, but also to an internal loudspeaker system. The M-105 D Mariner kit includes:

-M-105 Digital electronics, assembled on an anodized aluminum panel (can be arranged horizontally or vertically)
-10 m cable and transducer
-PTT (push to talk) microphone
-Marine loudspeaker
 
M100-Portable surface transceiver
The M100 is a portable surface transceiver unit that may be worn on the operator’s belt. This unit is high performance, compact, and easy to use. It is made to respond to the demands of communicating with divers in action.
The main unit has a PTT (Push to Talk) button and a headphone/microphone connector. The unit turns on when the headphone/microphone is connected to the main unit. The unit turns off automatically when the headphone/microphone is removed.
A 10 m (30 ft) transducer cable connects to the main unit and is lowered into the water. The operator may control the depth of the transducer.
It operates on one channel and uses a 9v replaceable alkaline battery with autonomy of approximately 9 hours. The range of operation is approximately 250 m (750 ft).
The unit comes with the following items:
-10 m (30 ft) transducer cable
-Headphone/microphone
-Screwdriver
 
M101A-Underwater receiver
M-101 A is a receive-only unit. It fits on any standard mask strap, conventional masks or full face models.
Automatically activates once submerged in water
Strong reception, it may be worn on the mask or off
When held off a mask in open water, allows other divers to listen to transmission
 
M101AR-Receiving unit for underwater video cameras
M-101AR is a receiving unit for underwater video cameras. The unit connects to the “audio in” port of an underwater video camera to record conversations among divers and/or with the surface. The M-101AR may hang on the camera housing or BC jacket.
-Automatically activates once submerged in water
-Strong reception, it may be worn on the mask or off
-When held off a mask in open water, allows other divers to listen to transmission
-Cable (1m/3ft) should be connected to the audio/video port of the video camera housing while the receive unit is attached to a Neptune mask (ensuring quality of recorded audio)
 
ALPHA PRO-Hardwired Communications

ALPHA PRO is a hardwired, full-duplex underwater communication system for conversations between the surface and one or two divers. The system consists of a surface unit and an underwater unit with a Surface/Diver unit cable.

ALPHA PRO Surface unit includes:
-2 ports for 2 communication cables
-On/off and volume adjustment switches
-Microphone
-Switch for communication between surface and diver1, surface and diver 2, surface and diver 1 and diver 2
-Headset port (headset optional)
-External power charger, 9/12 v (cable optional)
-Battery charger port
-Audio/video recall
-Incorporated speaker
-6 v rechargeable battery
-Standby autonomy 24 hrs
 

Surface/Diver unit cable:
-50 m (165 ft)
-Waterproof connections
 

Underwater unit includes:
-Waterproof piezoelectric speaker
-D- Mic microphone
-Full duplex system
-Audio/video recall button
-Comes in either 220 v or 110 v
-Can purchase Surface/Diver unit cable by itself
-Can purchase Underwater unit by itself
By adding an additional surface/diver cable and underwater unit, the Alpha Pro may communicate with two divers at the same time. It is also possible for the surface to switch between each of the divers.

 
Gamma 105-Audio/video system
GAMMA 105 is an integrated audio/video system consisting of the M-105 Digital and a CCD Micro Video Camera.
--CCD Micro Video Camera may be fixed in an underwater housing, attached to a Neptune mask, or held by the diver
--Surface can communicate with an unlimited number of divers, within the range of the M-105, while simultanieously monitoring the underwater video footage
--Camera is hardwired via a 40 m (120 ft) cable to a 4 inch color LCD monitor
GAMMA 105 system includes:
-Ultrasonic surface communication unit (10 m/33 ft) transducer cable, microphone, external power supply cable, audio port, headphone port, volume control, and loudspeaker
-CCD Miro Video Camera with underwater housing and mounting bracket
-40 m (120 ft) camera cable
-4 inch color LCD monitor with 980x234 resolution, loudspeaker, audio and video port, brightness and color controls
-Video port for external video recorder or monitor
-12 v battery
-Battery charger connector
-12 v battery charger
 
Gamma 105 Camera & Adjustable Bracket
GAMMA 105 Camera and adjustable bracket is an accessory to the Gamma 105.
-May be removed from the bracket without tools, even during a dive
-Allows the camera to rotate up and down
-Easily connects to any Neptune mask
-NSTC size is larger than PAL size
 
Shield Display
Depth and tank pressure display for Neptune mask. This information is obtained by two LED displays on each side. Depth display is on the right and tank pressure display is on the left.

Shield display specifications