Underwater Communication System

Being able to communicate easily underwater has always been a "forbidden dream" for many underwater divers. For commercial use many complex, clumsy and expensive systems have been on the market for quite some time. The Ocean REEF underwater communication NEPTUNE system is designed for a wide variety of commercial, military, emergency assistance and search and rescue dive operations.  It is also beneficial for scientific or research purposes, easier instruction, underwater leadership and general recreational uses. The Ocean REEF Neptune communication system is compact in dimension and weight. Powerful and compatible with other underwater communicators, it's made with sturdy components and can be used even in the most extreme conditions.

M-101A- is a receiving unit which can be used by any underwater diver with a conventional mask or full face mask.  The M-101 has an efficient and extremely useful impulse transmission system (simple signals like Morse code) which increases its communication potential above and beyond a simple receiver.  It has a small, sturdy, compact design that is easy to attach to the strap of a mask.  The M-101A works with a standard 9 volts alkaline battery.
 

M-105 - is a professional surface station.  It has been designed to operate with any single sideband transceiver operating on the same frequency and within range. Comes standard with one frequency, 32.768 Hz.  However, single sideband allows the user to utilize the upper or lower bandwidth.  Channel number one is 32.768 Hz upper sideband.  Channel number two is 32.768 Hz lower sideband (standard channels).  Channels number three through six can be whatever the user desires.  M-105 operates on 8 "C" size alkaline batteries and comes standard with 1 hand held microphone and 1 transducer including 10 Mt. (35 feet) of transducer cable.  Located in the front panel is a volume control, 12 volt external receptacle, Channel select, Mic/Earphone receptacle and Heavy Duty Panel Speaker.  Its housed in a rugged container.

A NEW WAY TO DIVE

Recreational divers have always and mainly used a conventional mask and regulator with the full face mask being used by professionals and military personnel.  Ocean Reef is introducing a new concept to the recreational diver, with a lot of new applications and options for both recreational and professional divers.

It's time to forget the conventional mask and the conventional regulator.  It's time for a change.

Here are some reasons why:

• Thermal Protection: There is no conventional mask that will protect your face from the cold or polluted water in the way that Neptune II does.
• Visibility: Try to find a conventional mask that gives you a spherical 180° vision.
• Breathing: Which regulator gives you the possibility to breath with the nose as mother nature taught us to do?
• Safety: Neptune II NIRA can be equipped, simultaneously, with 2 regulators and the GSM to give you the opportunity to stay in touch with you buddies and the surface.
• Communication: With GSM and Neptune NIRA you can hear, ask, share emotions with you buddies and let you understand easily by speaking, not sign language.
• Price: The Neptune II NIRA costs, more or less, the same as the best "standard" mask + a conventional high quality regulator.  However, it does a lot for you and can give you much, much more!

Neptune II Full Face Mask - The innovative Full Face Mask NEPTUNE II is the result of intense research and patient experience acquired in the development and production of military protection equipment.  The Ocean REEF Group spent tens of thousands of hours testing the NEPTUNE II in laboratories and real world situations.  The surface based versions of the FFM have received international approval in the civil sector and have been adopted by specialized departments of numerous Military and Defense organizations for use in anti - Nuclear - Biological - Chemical (NBC) operations.  From the Gulf War to the Antarctic expeditions, from military to spacecraft applications, from civil to sports activities.....The Full Face Mask project, involving more than 50 different types of masks, started in 1985 and has reached the ultimate in unique experiences of extreme conditions and applications.  This allows Ocean REEF to be recognized as THE FULL FACE MASK COMPANY wherever you dive.

The NEPTUNE II has been engineered for underwater environments.   It has been designed to use two second stages and was designed to accept underwater (water/water, water/surface) communication units.  The concept of NEPTUNE II makes possible the use of the majority of available diving regulators in the market.  That allows the use of personal regulator without the need to get a brand new one.  The universal regulator attachment (two sizes) with the DIN fitting, allows almost any regulator to be attached to the mask.  The NEPTUNE II has been designed for both commercial and recreational purposes.  The Full Face Mask is built with the highest quality materials, providing maximum protection against extreme conditions and incidental impact.  All these features in a product that weighs only 200 gr. (in water).

Principle Technical Characteristics

• Adaptability
  The patented bellows type skirt with "spring profile" and large sealing surface (from 30 to 45mm, which is double that of a conventional mask) is molded by premium grade silicone rubber.  The spring effect is obtained thanks to the particular combination between the "double S" section and the internal ribs, which allows to reach the right compromise between the fitting comfort and the hardness to support the main structure of the full face mask.  The structure has two primary benefits.  It allows the mask to "float" comfortably in front of the face and allows for an exceptional fit for a large percentage of faces (more than 80% of those tested).  The face seal and strap concept are Ocean REEF patents.

• Visual Field
  The visor, made of transparent polycarbonate, was studied in order to have the optical part wider and closer to the face.  This maximizes the visual field, particularly the peripheral area.  The picture is a report of the visual field of the mask.  The dark area represents the monocular visual field obtained with one eye only, meanwhile the   lighter area shows the binocular visual field (obtained by 2 eyes together).   The visible light  transfer of the visor is 92%.

• The Head Harness - FRB II
  The head harness straps are directly attached to the sturdy face shield in a design that allows the pressure to be transmitted uniformly along the mask's skirt.  This is a benefit unique to the NEPTUNE II.  The low elasticity of the 6 straps of head harness (the spider) holds the mask in a firm position.  However at the same time the spider is able to compensate for the different neoprene hood thickness by a more calibrate pressure .  Due to the new buckle FRB II (Fast Rotating Buckle), the mask can be worn and taken off quickly, by releasing the lower strap buckles.  The removal of the NEPTUNE II is quite easy and is preformed by pulling on the 2 quick release balls at the front lower side of the harness.  The tip of each strap has a larger profile allowing an easier find while wearing neoprene gloves.  The material used for the clamping band resists at -30° C and permits the use of the NEPTUNE II in extreme conditions.

• External Environment Protection
  It is also possible to directly attach the mask to the hood of a watertight wet suit, creating a completely watertight seal, while still allowing easy mask release.   Creating a fully watertight seal helps protect the diver in cases of polluted diving environments.

• Air Circulation and limitation of CO²
  In the NEPTUNE II a system for air  circulation was designed to avoid any fogging of the mask while reducing the amount of CO and CO² inhaled.  The liquid silicone oral-nasal  pocket is furnished with two one way valves where the air goes through.  Exhaled air is directed through the valve under the oral-nasal pocket, limiting the mixing of this "dead air" (having a high percentage of Carbon Dioxide) with the fresh air coming from the regulator.  The cover of exhalation valve may be rotated to direct the bubbles (this is quite important to avoid possible interference's while using a wireless communication system).  A low inner volume (only 750cc) offers a quick ventilation of all the mask and a lower buoyancy.

• Draining
  The NEPTUNE II inside pressure is equal to the external one because the diver breaths inside of the mask and the pressure is automatically compensated by the regulator.   This characteristic avoids any "sucker effect" during the dive, typical of the conventional masks, and any possible water leakage.  However, if for any reason there would be the need to remove the water from inside the mask, there would be no problem.  You simply exhale or press the exhaust button of the regulator, this makes the water flow out from the lower exhaust valve.

• Mechanical and scratching resistance
  The visor of the NEPTUNE II can resist the impact of a 6.35mm steel sphere traveling at a speed of 540 km per hour.  It is double side coated by a siloxane resin to increase the scratching resistance.  To improve protection during carrying, the NEPTUNE II has a removable protective shield (remove before diving).

• The 2D equalization system
  A movable and adjustable plate with 2 anatomic silicone nuts, has been designed to allow equalization during a dive. The equalization is quite easy. By pressing the upper side of the visor, the plate with the 2 nuts moves back and close the nostrils. The 3D equalization system could be adjusted to have the right position in according of individual's nose. The nuts may be move up and down depending on the length of the individual's nose.  They have an eccentric assembly on the plate and it allows the fitting of larger or narrower noses.  The plate has 3 fixed adjustments + a micro adjustment for each position.  It makes equalization very comfortable and avoids any undesired pressure during the dive,  The 3D equalization system is an Ocean REEF patent.

• Regulator Attachment
  A special adapter comes with the mask allowing the connection of many types of regulators to the NEPTUNE II.  The NEPTUNE II is supplied with a medium size regulator attachment and a small size attachment is available.  Ocean REEF recommends the use of an adjustable regulator without over injection characteristics.  You can check with you Ocean REEF dealer for proper air flow of the regulator.  It is also possible to connect two second stages to the mask simultaneously.  NEPTUNE II may be used with 2 regulators at the same time.

Packaging
*Transparent Visor Shield is attached to the mask's outer frame system, the              shield protects the mask from impact during storage.
*Maintenance tools are specially designed for the easy service of the mask            (made from technopolymer).
*Training video "NEPTUNE" has information and instructions about the use of the NEPTUNE system.
*User's manual contains descriptions of how to use and service the NEPTUNE II, NIRA, NEPTUNE II NIRA 6600 and TR94 POLAR.
*Mail in "Ocean REEF Full Face Mask Diver Card and receive automatically the magazine "The Creating the Future" and a newsletter with information and upgrades regarding the NEPTUNE System.
*Lifetime Warranty.

• Optional Accessories
  *Polar Tex Strap for extreme low temperature applications.
  *Support System for optical lenses - A lens frame specially designed for the NEPTUNE II masks allows the use of standard optical lenses (not included) during the dive.  This accessory which is both lightweight and strong, can easily be inserted inside the mask, and quickly removed.
  *Small size regulator attachment for regulators with lower dimensions.

NEPTUNE II NIRA
NEPTUNE II NIRA is the integration of a dedicated regulator (NIRA) to the NEPTUNE II full face mask.  NIRA, Neptune Integrated Regulator Adapter, is an injected and adjustable regulator specifically designed for the full face mask characteristics.   To obtain the high-test performance level of your NEPTUNE II mask, we recommend that the NIRA be used in conjunction with it.  The NIRA is equipped with an aspiration deflector that has 2 possible positions, "surf" and "dive".  The deflector reduces or increases the air flow avoiding (in the "surf" position) any possible "free flow" cause by undesirable impacts on the surface.  The deflector positions are well marked, for easy identification, while wearing the mask.  The NIRA is also equipped with an adjustable knob which allows the diver to equalize in the proper way the air flow of the 2nd stage in accordance with the divers position and depth.   The NIRA can be easily removed from the front side of the NEPTUNE II allowing the retrofitting of the standard regulator connector.  The NIRA may be assembled on any NEPTUNE II and all previous releases of Ocean REEF Full Face masks.  Ask your dealer to order the proper kit.   With the NIRA it's always possible to use an additional regulator connected to the side port.  The NIRA is specially recommended for low temperature applications where conventional regulators have the tendency to freeze.  The NIRA is a lightweight regulator.

The NEPTUNE II NIRA is a compact, light and very comfortable diving full face mask, it is available in 2 additional versions provided with a 1st stage.

• NEPTUNE II NIRA 6600
  (3 colors available) with a 921 gr. chromed brass and stainless steel piston 1st stage with 2 HP ports, 4 LP ports and swivel joke.   
• NEPTUNE II NIRA TR94 POLAR
  (3 colors available) with a 1320 gr. chromed plate brass and stainless steel balanced membrane 1st stage with 2 HP ports, 4 LP ports, swivel joke and environmental kit.

• Optional accessories for Neptune masks

  • Support system for optical lens is a lens frame specially designed for the NEPTUNE II masks and allows the use of standard optical lenses (not included) during the dive.  This accessory is easily assembled inside of the mask, may be quickly removed and is light and strong.
  • Small size Regulator Attachment is for regulators with lower dimensions.
  • NIRA hose quick connection allows a quick disconnection or connection of the Neptune NIRA from he 1st stage.  They are male and female chromed plated brass parts that allow quick release of the connection to the low pressure hose.
  • NIRA/hose swivel connection is made of chromed plated brass.  It is attached to the NIRA and the LP hose, allowing a more comfortable positioning of the hose.

   

  Underwater Communication System

  Being able to communicate easily underwater has always been a "forbidden dream" for many underwater divers. For commercial use many complex, clumsy and expensive systems have been on the market for quite some time. The Ocean REEF underwater communication NEPTUNE system is designed for a wide variety of commercial, military, emergency assistance and search and rescue dive operations.  It is also beneficial for scientific or research purposes, easier instruction, underwater leadership and general recreational uses. The Ocean REEF Neptune communication system is compact in dimension and weight. Powerful and compatible with other underwater communicators, it's made with sturdy components and can be used even in the most extreme conditions.
   
   

About Underwater Communication

Talking underwater requires some special attention to the following

• Talk slowly with clear pronunciation.
• Talk briefly
• While you talk, exhale slowly.
• Direct exhaust bubbles away from the antenna by moving the exhaust deflector.  Air bubbles are a terrible filter for ultrasonic frequencies.

Ultrasonic communication is very sensitive to the environment.   Reflections are always possible, mainly inside square swimming pools.  In this case the noise increases and an undesired "Larsen effects" could appear.   Water thermocline (quick water temperature changes) and air bubbles from your regulator are another reason for poor quality transmissions.  Microbubbles of air stitching on the antenna, due to breathing or cavitation, could be the reason for a dramatic reduction of transmission power.  Obstacles as well as rocks and wrecks decrease the transmission quality generating "shadows area" where it could be difficult if not impossible to have communication.