Type 8221, 8212, 8142 & 8091 HPT
Type 8182 HPT Modems
HPT Variants
UM-8142
Issue B Rev 1
Section 12 – Technical Specifications 65
12.3 8142-000-01, 8142-000-31, 8142-000-11 USBL Transceivers
Mechanical
Parameter Specifications
Diameter (Max) 225 mm (8.9 in)
Overall Length 370 mm (14.6 in)
Note: An additional 180 mm (7 in) should be allowed for flange and connector to fit onto a sea chest.
Weight in Air (Standard Version)* 28 kg (62 lb)
Weight in Water (Standard Version)* 15 kg (33 lb)
Electrical
Maximum Power
15 W Standby
120 W Max
Voltage 24 or 48 V DC
Communication 2 x RS485 Half Duplex COM
or Ethernet 100 base T
(Standard on Type 8142-000-11)
or 1 x RS485 Full Duplex COM
Acoustic
Transmitting
Source Level 169 to 199 dB ref: 1 µPa @ 1 m
Receiving
Operating Envelope ±80° (160 deg) min
Sensitivity Threshold 80 dB ref 1 µPa
Repeatability (8142 Only)
Better Than 0.1% of Slant Range Given a SNR of
35 dB in Equivalent Signed Bandwidth
Range Precision Better Than 0.015 m
Environmental
Operating Temperature -5 to 40°C (23 to 104°F)
Storage Temperature -20 to 45°C (-4 to 131°F)
* Estimated Weights
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