SEEKER Acoustic Directional Receiver for
Subsea Vehicles
 Small size and rugged design
 Mounts easily on ROV or AUV
 Compatible with ATT400
series acoustic transponders
The SEEKER
The SEEKER acoustic directional receiver (VADR) is
a small but rugged passive pinger receiver used to
assist operators of ROVs and AUVs in tracking acoustic sound sources from 25kHz to 40kHz. In addition,
the SEEKER receiver can function as an “acoustic
transponder interrogator” and provide accurate range
and bearing to targets marked with a line of custom
acoustic transponders. There are two different
models of SEEKER receivers: VADR1000M operates to
depths of 750 meters and the VADR6000M can withstand depths of 6,000 meters.
The VADR receiver’s small size and rugged design
allows for easy mounting on a ROV (Remotely Operated Vehicle) or AUV (Autonomous Underwater Vehicle). Electronics and a highly directional hydrophone
are contained in the pressure housing and are externally powered by the subsea vehicle through a 5-pin
bulkhead connector. In addition, all telemetry data
for controlling the VADR receivers and output data is
accessed through this same connector.
A RS232 data interface is used to access the directional indication, range to target, and other operational information and control functions of the VADR
receiver using an ASCII data string. Software is also
provided to allow the operator easy access to control
and receive the necessary directional information to
track the acoustic sound source.
For tracking an acoustic sound source, like a “Black
Box” beacon, the operator selects the proper frequency through the SEEKER software. The VADR
receiver begins to look for that acoustic signal
through a directional hydrophone which is mounted
into the front of the pressure housing. Once received,
the signal is processed by the electronics and fed to
the software. Then bearing data and signal strength
is provided to the ROV operator for navigating the
ROV to the target area.
In addition, the ROV operator can change the mode
of the VADR receiver to track and locate ATT400
series acoustic transponders. This option allows the
ROV operator to mark locations or equipment underwater with accuracies within one meter. Because the
system is now operating as a transponder interrogator, the feedback to the ROV operator is more accurate as range and bearing data is delivered to the
SEEKER software. Each ATT400 transponder can be
programmed to reply on eight(8) different frequencies allowing the marking of multiple locations within
an operational range of up to 750 meters.
RJE International, Inc.
15375 Barranca Pkwy, Suite I-112, Irvine, CA 92618
Tel: 949-727-9399, Fax: 949-727-0070
www.rjeint.com Email: [email protected]
600-18015 7/15/2015
SEEKER Acoustic Directional Receiver for
Subsea Vehicles
SPECIFICATIONS
Pinger Receiver Mode:
Receive Bandwidth:
Receiver Sensitivity:
Transponder Mode:
Receive Frequencies:
Interrogation Frequency:
Acoustic Output:
Acoustic Signal:
System Range:
Directional Hydrophone:
Beam Width:
Bearing Indication:
Bearing Accuracy:
Bearing Resolution:
Control Interface:
RS232:
Connector:
Interface Software:
Input Voltage:
Mechanical/Environmental:
Housing:
Depth Rating:
VADR1000M:
VADR6000M:
Weight:
VADR1000M:
VADR6000M:
Dimensions:
VADR1000M:
VADR6000M:
Operating temperature range:
25 TO 40kHz in 100Hz increments
-100dB ref 1µPa @ 1 meter
27, 28, 29, 30, 21, 32, 33, 34kHz
26kHz
190dB ref 1µPa @ 1m
Coded
up to 750m (2,461ft)
40 ± 5 degrees Conical
4 BINS: Left or right, 3, 8, 20 or > 20 degrees
5 degrees nominal in BINS 1 and 2
2 degrees
9600 Baud, No Parity, 8 Data Bits, and 1 Stop Bit
5 pin Underwater Pluggable
Microsoft OS, Provided
18 to 32VDC, 24VDC nominal
Aluminum Hard Coat Anodized
1,000m (3,281ft)
6,000m (19,685ft)
3.8kg (8.5lbs) in air / 3.2kg (7.0lbs) in water
6.8kg (15lbs) in air / 5.5kg (12lbs) in water
11.4cm(Ø) x 26.0cm(L) (4.50in(Ø) x 10.2in(L))
12.7cm(Ø) x 28.0cm(L) (5.00in(Ø) x 11.0in(L))
-18°C to 43°C (0°F to 110°F)
Specifications are subject to change without notice
SEEKER Software
RJE International, Inc.
15375 Barranca Pkwy, Suite I-112, Irvine, CA 92618
Tel: 949-727-9399, Fax: 949-727-0070
www.rjeint.com Email: [email protected]
600-18015 7/15/2015