Speed Logs

NAVIKNOT 350E system is a single-axis speed log, working on the electromagnetic principle. It is providing longitudinal ship speed relative to sea water. The NAVIKNOT 350E same as the rest of Sperry Marine NAVIKNOT Series, meets all IMO and Classification Societies requirements applicable.

• Single-Axis Electromagnetic Speed Log
• Speed Through Water (STW) in one axis, ± 1% or 0.1 knots accuracy
• Large TFT display, with day/night modes
• Central alarm interface (Central Alarm Management system)
• NMEA 0183, pulse and analogue outputs
• Miles counter (total/daily)
• Console- or bracket-mounted

NAVIKNOT 450D SPEED LOG

NAVIKNOT 450D system is a single-axis speed log, working on the Doppler principle. It is providing longitudinal ship speed relative to sea water. The NAVIKNOT 450D same as the rest of Sperry Marine NAVIKNOT Series, meets all IMO and Classification Societies requirements applicable.

• Single-Axis Doppler Speed Log
• Speed Through Water (STW) in one axis, ± 1% or 0.1 knots accuracy
• Large TFT display, with day/night modes
• Central alarm interface (Central Alarm Management system)
• NMEA 0183, pulse and analogue outputs
• Miles counter (total/daily)
• Console- or bracket-mounted

NAVIKNOT 600 system is a dual-axis speed log, working on the Satellite/Doppler or Satellite/Electromagnetic principles, depending on the variant. It is providing longitudinal and transversal ship speed over ground (SOG) and longitudinal ship speed relative to sea water (STW). The NAVIKNOT 600 same as the rest of Sperry Marine NAVIKNOT Series, meets all IMO and Classification Societies requirements applicable.

• Dual-Axis Satellite/Doppler or Satellite/Electromagnetic Speed Log
• Speed Over Ground (SOG) in two axis and Speed Through Water (STW) in one axis, ± 1% or 0.1 knots accuracy
• Large TFT display, with day/night modes
• Central alarm interface (Central Alarm Management system)
• NMEA 0183, pulse and analogue outputs
• Miles counter (total/daily)
• Console- or bracket-mounted

The SKIPPER DL1 is a Single Axis Speed Log, working on the doppler principle, providing longitudinal ship’s speed (STW) and distance relative to sea water. The SKIPPER DL1 gives accurate navigation parameters, measured as they happen, and presented in a logical, user friendly way.

• Single Axis Doppler Speed Log
• Water speed (STW) in Single Axis
• Display in 28 x 30 LED dot matrix with full night dimming
• Sea Temperature readout
• NMEA 0183 output
• 3 userfriendly programmable displays and integrated menus
• Fully automatic settings

SKIPPER DL2 SPEED LOG

The SKIPPER DL2 is a Dual Axis Doppler Speed Log, working on the doppler principle, providing longitudinal and transversal ship’s speed (STW and SOG) and distance relative to sea water. The SKIPPER DL2 gives accurate navigation parameters, measured as they happen, and presented in a logical, user friendly way

• Dual Axis Doppler Speed Log
• Water speed in dual axis (STW)
• Ground speed in dual axis (SOG)
• Docking functionality as standard (Three axis in STW and SOG)
• 9" Touch Display
• Sea Temperature readout
• LAN and NMEA 0183 output
• User friendly programmable displays and integrated menus
• Fully automatic settings
• Resultant Sea Current in speed and direction

The SKIPPER DL21 is a Dual Axis Doppler Speed Log and a Single Axis Doppler Speed Log in one sensor unit. It is working on the doppler principle, providing longitudinal and transversal ship’s speed (STW and SOG) and distance relative to sea water. The SKIPPER DL21 gives accurate navigation parameters, measured as they happen, and presented in a logical, user friendly way.

The new DL21 Speed Log is designed for ships over 50.000 GT with simultaneous and independent measurement of speed through water and speed over ground. This is according to new IMO resolution MSC334(90)

• Dual Axis Doppler Speed Log
• Independent Single Axis Doppler Speed Log
• Water speed in single and dual axis (STW)
• Ground speed in dual axis (SOG)
• Docking functionality as standard (Three axis in STW and SOG)
• 9" Touch Display
• Sea Temperature readout
• LAN and NMEA 0183 output
• User friendly programmable displays and integrated menus
• Fully automatic settings
• Resultant Sea Current in speed and direction

The SKIPPER EML 224 is a dual axis speed log, working on the electromagnetic principle. It is providing longitudinal and transversal ship speed relative to sea water. The EML 224 gives accurate navigation parameters, measured as they happen, and presented in a logical, user friendly way.

• Water speed in dual axis
• Colour LCD screen with day/night screens
• Sea Temperature readout
• NMEA 0183 and Analogue pulses output
• 3 Programmable contact closures 

The SKIPPER EML224 Compact is the newest Electromagnetic Speed Log. The difference from the EML224 Graphic is that the operator unit (display) is smaller. The EML224 Compact is available in single or dual axis, making it more flexible depending on customers needs and demands.