GSM(gray color)
GSM DC
TM
(black color)
GSM DAT
TM
Models
Side View
.M-101A Model
(yellow color)
Side View
Fig. 1
Front View for
GSM - GSM DC
TM
- GSM DAT
TM
and M-101A
Fig. 2
NACS slot
(Strap slot for M101A
only)
speaker
antenna
2
Battery housing
On/Off switch
contacts
Microphone cable
antenna
Transmission
Button
Microphone
GSM
GSM DAT
TM
GSM DC
TM
The M-101A is a receiver unit. It may be attached to any type mask of
goggles.
The communication range for the various models extends to about 200
meters (600 feet) and to a depth of 40 meters (120 feet).
(This may vary due to salinity, particulate, water temperature and noise level
in the water)
The OCEAN REEF underwater communication system uses the standard
UCF (32768 Hz frequency)
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