Teledyne Benthos - Underwater Systems, Survey Equipment:  Seafloor Mapping, Hydrophones, Locators, Flotation and Positioning Products Teledyne Benthos - Underwater Systems, Survey Equipment:  Seafloor Mapping, Hydrophones, Locators, Flotation and Positioning Products Teledyne Benthos - Underwater Systems, Survey Equipment:  Seafloor Mapping, Hydrophones, Locators, Flotation and Positioning Products
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ACOUSTIC MODEMS

Teledyne Benthos underwater acoustic modems are used in worldwide subsea applications to transmit data wirelessly through the water.

Modem applications include remote monitoring of oceanographic sensors, control of wellhead and pipeline valves, control of autonomous underwater vehicles (AUVs), subsea networking and many military applications. The ATM series acoustic telemetry modems are the most advanced, multi-path and noise tolerant, and cost efficient ever available. They are designed to meet both the high data rate requirements of commercial users, and the higher reliability, lower data rate requirements of the military. "Telesonar" is derived from the words telemetry and sonar, where telemetry is data transmission, and the word sonar (a general term for the applications of underwater sound), was derived many years ago from the acronym for sound navigation and ranging.

For more information about modem applications click here.

Click on the images below to view the full page product information.

 
Subsea Units
  Depth Size Weight Power Frequencies

ATM-885

2000 m (6,560 ft)

Diameter:
14 cm 
(5.5 in)

Length:
85 cm 
(33.5 in)

Dry:
11 kg 
(24 lbs)

Wet:
5 kg 
(11 lbs) 

378 W·Hr internal batteries (can also be powered by external source) 

Low frequency (LF) 9-14 kHz

Mid frequency (MF) 16-21 kHz 

ATM-886

2000 m (6,560 ft)

Diameter:
13.97 cm 
(5.5 in)

Length:
36.65 cm (14.41 in)

Dry:
4.08 kg 
(9 lbs)

Wet:
1.36 kg 
(3 lbs)

 

No internal batteries. 12-48VDC external power required

Low frequency (LF) 9-14 kHz

Mid frequency (MF) 16-21 kHz

 ATM-887

 

6000 m(19,680 ft) 

Diameter:
12.7 cm 
(5.0 in) 

Length:
85.3 cm 
(33.6 in)

Dry:
16.4 kg 
(36 lbs)

Wet:
7.7 kg 
(17 lbs)
 

588 WHr internal batteries (can also be powered by external source) 

Low frequency (LF) 9-14 kHz

Mid frequency (MF) 16-21 kHz 

 OEM Options

Transducer rated to 
6000 m (19,680 ft) 

14.04 cm 
(5.53 in)
x
4.64 cm 
(1.83 in) 

6.90 cm 
(2.72 in) 
for board set

0.56 kg 
(1.25 lbs) 
electronics

1.81kg 
(4 lbs) or less transducer 

12-48 VDC (provided by customer)

Low frequency (LF) 9-14 kHz

Mid frequency (MF) 16-21 kHz

Smart Modem SR-100
 

6,700 m (22,000 ft) 

Diameter:
12.7 cm 
(5 in) 

Length:
111.8 cm 
(46 in) 

Dry:
47.7 kg 
(105 lbs)

Wet:
37.7 kg 
(83 lbs)

 

588 WHr internal 
batteries (up to 2 year battery life)

Low frequency (LF)9-14 kHz 

Smart Modem SR-50

305 m
(1,000 ft) 

Diameter:
19.8 cm 
(7.8 in)  

Length:
74.7 cm 
(29.4 in)
 

Dry:
15.64 kg 
(34.5 lbs)

Wet:
6.8 kg 
(15 lbs)

 

588 W Hr internal batteries (up to 2 year battery life)

Low frequency (LF)
9-14 kHz

Smart Modem SM-75

6700 m (22,000 ft) 

Diameter:
33 cm 
(13 in) 
or
43 cm 
(17 in) 

33 cm (13 in) 
= 18 kg (40 lbs)

43 cm (17 in) 
= 27 kg (60 lbs) 

588 W Hr internal batteries (up to 1 year deployment life) 

Low frequency (LF)
9-14 kHz
 

Surface Units  
  Depth Size  Weight  Power  Frequency 

Universal Deck Box
UDB-9000

Surface use only, not depth rated

Transducer rated to 
200 m 
(656 ft)

Length:
29.8 cm (11.75 in) 
length

Width:
44.4 cm (17.5 in)

Height:
17.8 cm 
(7 in) 
each case


Deck Box:
<13.6 kg 
(30 lbs)

Transducer: 
<13.6 kg 
(30 lbs)

Internal: 
24V lead acid battery (two 12V in series)

External AC:
AC, 85-265 VAC, 
47-63 Hz,

External DC:
10-30 VDC
 

Low frequency (LF) 7-15 kHz, 
other frequencies available upon request

ATM-980

Surface use only, not depth rated

Length:
19.05 cm 
(7.5 in)

Width:
23.87 cm (9.4 in)

Height:
12.06 cm (4.75 in) height

 

1.36 kg 
(3 lbs)
12-22 VDC See ATM-886

 


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