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Transponder, AUV / ROV / ETC.

cNode Explorer

cNODE Explorer

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cNODE EXPLORER transponders are designed for integration onto AUVs, ROVs, landers or other vehicles where space and weight are restricted. The cNODE electronics can be supplied in a pressure rated underwater housing or in compact lightweight non pressure rated OEM housing for full third party integration.

cNODE® Explorer is a compact transponder fully compatible with HiPAP®, cPAP® and μPAP® underwater positioning systems. Both Low Frequency and Medium Frequency models are available.

cNODE® Explorer may be connected with up to three remote transducers. The transducers may be selected and switched electronically by the subsea vehicle control system or acoustically, to optimize for example vertical or horizontal telemetry and positioning performance.

The transponder will operate as any standard cNODE® offering telemetry, SSBL and long baseline positioning modes.

cNODE® Explorer interfaces to the subsea vehicle via a serial interface to transfer modem data. The transparent modem capability allows commands and data to be transmitted to and from the subsea vehicle from the customers topside AUV operator station, via the vessels HiPAP® system.


  • SSBL and LBL Positioning
  • 560+ Cymbal® channels and HPR
  • High speed telemetry capabilities
  • Modem Function
  • Interleaves positioning and communication
  • Interface up to 3 remote transducers
  • 20-30kHz (MF) and 10-15kHz (LF) Models
  • Operating temperature -5ºC to +55ºC
  • Input power supply: 15Vdc, 24Vdc and 48Vdc (depending on models)
  • Data interfaces: RS232
  • Transmitting power (max): 100W
  • Standby power: < 100mW

cNODE® Explorer models

ModelcNODE® Explorer 34
Subsea MF aluminium
cNODE® Explorer 37
Subsea MF titanium
cNODE® Explorer 17
Subsea LF titanium
cNODE® Explorer 30 and 10
Part no.390582409159418540388775 (MF) / 418545 (LF)
HousingAnodized aluminium
(4500m depth rated)
(7000m depth rated)
(7000m depth rated)
Aluminium - for integration
(Not depth rated)
(Length / diameter)
279mm / 89mm
(plus 45mm connectors)
279mm / 79mm
(plus 45mm connectors)
279mm / 79mm
(plus 45mm connectors)
238mm / 68mm
(plus 11mm attachment lug)
Weight3.4kg (air)
1.65kg (water)
2.3kg (air)
1.8kg (water)
2.3kg (air)
1.8kg (water)

Transducer options

ModelTDR30H* for
TDR180* for
TDR30V* for
TDR40V* for
TDR180* for
Part no.395569395088398291321528394674330015
Beam width±15° horizontal(doughnut)±90° omni directional±15° vertical±20° vertical±90° omni±25°vertical
Depth rating4500m4500m4500m4500m7000m7000m
MaterialAluminiumAluminiumAluminiumAluminiumStainless steelStainless steel
Other options7000m / SS7000m / SS7000m / SS / Titan7000m / SS  

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