Ocean Reef GAMMA-ALPHA 2010 User manual

OWNER’S MANUAL

GAMMA-ALPHA 2010 Owner’s manual rel.1.0 october 2010
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GAMMA-ALPHA 2010 Owner’s manual rel.1.0 october 2010
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GAMMA-ALPHA 2010
WARNINGS…...……………………………………………………..….4
INTRODUCTION………..…………………………………………..….5
COMPONENTS…………………………………………………………6
POSSIBLE AUDIO INTERACTIONS BETWEEN DIVERS AND
SURFACE.……………………………………………………………..10
GAMMA-ALPHA POSSIBLE AUDIO
CONFIGURATIONS..…..…..11
DIFFERENT POSSIBILITIES OF VIDEO RECORDING………….12
TROUBLESHOOTING…..…………………………………………....13
WARRANTY………………...………………………………………….14

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WARNINGS, CAUTIONS, NOTES
Pay special attention when accompanied by these symbols:
A WARNING indicates a procedure or situation that, if not
avoided, could result in serious injury or death to the user.
A CAUTION indicates any situation or technique that could
cause damage to the product, and could subsequently result
in injury to the user.
A NOTE is used to emphasize important points, tips, and
reminders.

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INTRODUCTION
The GAMMA-ALPHA is an hardwired audio and video
communication system. The surface unit may be connected by
audio and video to 2 divers.
The GAMMA-ALPHA allows conversations between the surface
and one or two divers, powered volume for both diver and surface,
adjustable volume (from surface unit) for both diver and surface.
With regards to the video, the installed 7” LCD color monitor
displays the video feed coming from the UW camera of diver 1 or
diver 2. It is possible to switch the video to external monitors /
recorders. There are 3 different possibilities of video recording:
diver 1 through video out plug #1, diver 2 through video out plug #2,
mixed through the video out plug under the switch. With this third
option, one can record the same images you see in the 7 inch
monitor.

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COMPONENTS
The system consists of the following items:
Surface unit (OR033106)
VIDEO SIDE
1. 2 video input ports
2. Power switch
3. Video out port for diver 1 & 2
4. Charger port
5. Diver 1 or 2 switch for monitor and
audio out
6. 7 inch colour monitor
AUDIO SIDE
7. 2 ports for 2 communication cables
8. On/off and volume adjustment switch
9. Microphone port
10.Switch for communication between
surface & diver 1, surface & diver 2,
surface & diver 1 & diver 2
11.Headset port (headset optional)
12.Battery charger, external power
&audio out port (cables optional)
13.Audio/video recall
14.Incorporated speaker
15.Underwater unit volume adjustment
(for both divers)
•12v rechargeable battery
•Battery charger
9
13
2
3
4
1
5
6
11
7
8
10
12
14
15

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One professional surface/diver cable (50meters -165 ft long) (if
sold separately code OR033134)
1xmini rg59 + 4x0.18mm²cable with a polyurethane jacket to better
resist to salt water. The whole cable is covered with a rope made to
resist to 4000N pull strength.
The cable includes waterproof rubber 6 pin connector at the diver
side and DIN connector on the surface side.
The Professional cable is also available at any length on request.
A carry-bag is available with the cable and sold separately as an
accessory.
4000 N is the tear up strength, audio signal may be lost
earlier!
It is fundamental to pay attention that the cable does not get stuck on the boat or on
the seafloor. It is also very important to keep the cable slightly buoyant, by attaching
a small buoy or floating device to the cable a few feet away from the underwater unit.
It is a good idea to connect the cable with a hook or retractor to the BC jacket,
avoiding any traction between the surface and the underwater unit. During the dive
the surface operator must slowly feed the cable out to the underwater diver as
needed, while keeping voice contact. It is not advised to simply throw the cable into
the water. The same procedure should be used when the dive is completed and the
cable has to be brought on board.

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One underwater unit (if sold separately
code OR033135)
!Waterproof piezoelectric speaker
!D-Mic microphone
!Full-duplex system
!Audio/video recall button
!6 pin waterproof connector
!NACS support system
The connector between the cable and the underwater unit
can be disconnected and connected again underwater
The serial number on the Surface unit is located on the top inside cover of the
case.
The serial number on the underwater unit is located inside the battery housing.

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One surface/diver video cable (50 meters -165 ft long) (if sold
separately code OR008575)
One CCD micro video camera with underwater housing (if sold
separately PAL = code OR008574 - NTSC = code OR008573)
The cable is a mini RG59 + 4x0.18mm²cable with a polyurethane
jacket to better resist to salt water. The whole cable is covered with
a rope made to resist to 4000N pull strength.
It is equipped with an 4pin connector on the surface side and a 4
pin rubber connector on the diver side.
Do not try to connect a different kind of camera to the GAMMA-ALPHA 2010
surface unit! You will risk damage to your camera.
The video camera maybe handled or connected to the right side of your Neptune
SPACE mask. The cable must be fixed to the BC avoiding direct tension.

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POSSIBLE AUDIO INTERACTIONS BETWEEN DIVERS AND
SURFACE
By adding an additional surface/diver cable and underwater unit,
the GAMMA-ALPHA may communicate with two divers at the same
time. It is also possible for the surface to switch between each of
the divers.
DIVER 1 SELECTED
Receive from
Talk to
Surface
Diver 1 & 2
Diver 1
Diver 1
Diver 2 & Surface
Surface
Diver 2
None
Diver 1 & Surface
DIVER 2 SELECTED
Receive from
Talk to
Surface
Diver 1 & 2
Diver 2
Diver 1
none
Diver 2 & Surface
Diver 2
Diver 1 & Surface
Surface
DIVER 1&2 SELECTED
Receive from
Talk to
Surface
Diver 1 & 2
Diver 1 & 2
Diver 1
Diver 2 & Surface
Diver 2 & Surface
Diver 2
Diver 1 & Surface
Diver 1 & Surface

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GAMMA-ALPHA 2010 POSSIBLE AUDIO CONFIGURATIONS
The 6 pin connector of the professional cable makes it possible to
connect different underwater units to surface unit:
1. X-DIVER underwater unit
2. GSM CUBE³
3. MHA-2 trough the GC2008 or GC2010 adapter
You can choose the underwater unit you like, connect and
disconnect it underwater, and use different kinds of them at the
same time in the two diver ports.
Don’t try to use the GC2008 or GC2010 adapter to connect
the X-DIVER underwater unit or the GSM-CUBE³to the
cable!!
Be careful about the correct alignment of the GC2008
adapter (see GC2008 folder)
1
2
3

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DIFFERENT POSSIBILITIES OF VIDEO RECORDING
The GAMMA-ALPHA 2010 has three different possibilities of video
recording (or external screen playing):
Through plug #1 it is possible to record only diver one camera
regardless of what is displayed on the monitor.
Through plug #2 it is possible to record only diver two camera
regardless of what is displayed on the monitor.
Through plug #3 it is possible to record exactly what you see on the
monitor (selected through the selection switch #4)
1
2
3
4

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TROUBLESHOOTING
Problem
Probable cause
What to do
The unit does not turn on
Low battery
Recharge the batteries
The underwater unit does
not receive
Power turned off
Flooded underwater unit
The surface diver cable is
not attached to the
surface unit
Turn on the surface unit
Return to surface, rinse in fresh
water and send to Neptune service
center
Check the surface unit jack
connection
Surface is not receiving
audio signal
Volume too low
Power turned off
Flooded microphone on
underwater unit
Underwater unit not
working
Raise volume on the surface audio
and check the power
Turn on the surface unit
Return to surface, rinse in fresh
water, replace mic
Return to surface, rinse in fresh
water and send to Neptune service
center
Whistle noise
Defect in the alarm
system
Return to surface, rinse in fresh
water and send to Neptune service
center
Alarm system not
working
Defect in the underwater
unit button
Defect in surface unit
alarm system
Return to surface, rinse in fresh
water and send to Neptune service
center
Return to surface and send to
Neptune service center

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Surface not receiving video
signal
Disconnected plugs
General power off
Monitor turned off
Flooded camera
Connect plugs
Switch on
Switch on
Send for servicing
Video signal not clear
System not at full speed
Wait some minutes
Colours not real
Bad monitor settings
Adjust monitor parameters
WARRANTY
(1) OCEAN REEF communication units are guaranteed to be free
of material or manufacturing defects for a period of 24 months from
the time the unit is purchased. For the duration of the guarantee,
the Company’s responsibility is limited to replacement of any parts
that are defective in our opinion, and that have not been used
incorrectly or handled negligently. The unit must be returned to the
outlet from which it was bought, along with the warranty card. The
cost of transport is to be prepaid by the customer.
(2) Even during the guarantee period, this guarantee shall not be
valid where:
·Damage was caused by incorrect handling or carelessness.
·Damage was caused by the unit falling after it was purchased.
·Damage caused by fire, earthquake, floods, lightning, or other
natural disasters, pollution or electrical charges.
·The warranty card is not produced.
·Our name, the date of purchase, and the seller’s name do not
appear on the warranty card.
(3) Additional warranty cards cannot be issued. Keep your
certificate in a safe place where it cannot be lost.

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MESTEL SAFETY S.r.l.
Via Arvigo 2, 16010 Genova (Italia)
Phone [phone] Fax [phone]
e-mail [email protected]
OCEAN REEF, Inc.
1699 La Costa Meadows Dr. Suite 101 San Marcos, CA 92078
Phone [phone] Fax [phone]
OCEAN REEF on the Internet
http://www.oceanreefgroup.com
© OCEAN REEF 2008