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The CruzPro SOG2 module contains a sensitive GPS receiver and GPS patch antenna and electronics to create an analog paddlewheel signal so you can display Speed Over the Ground (SOG) on a standard speed log without a transducer in the water. Also outputs standard NMEA 0183 data output for use with charting software or display on a radar or multi-function screen, etc.


SOG2

Click here to download User's Manual PDF

CruzPro SOG-2 GPS NMEA to Paddlewheel output converter



Specifications:

Supply Voltage:
10.5 to 14.50 VDC 0.04 amps nominal.

Operating temperature:
0 to 50 deg Celsius ( 32 to 122 deg Fahrenheit).

Size:
50 x 35 x 30 mm (2 x 1.4 x 1.2 inch)

Input:
Internal GPS with internal GPS antenna.

Signal Output:
Analog paddlewheel signal 22,000 pulses per nautical mile.

GPS NMEA 0183 data output:
$GPRMC (Time, Lat, Lon, SOG, COG, Date)

Speed Range:
0.00 to 65.00 knots with 0.01 knot resolution.

Output Voltage:
0 to 12V nominal square wave for speedlog input
0-6V NMEA 0183 serial data output

Advantages:

No speed transducer required.
No extra hole(s) in your boat.
No fouling or cleaning of the paddle wheel.
Gives speed over the ground.
Unaffected by water currents.
More reliable than a paddlewheel.
More accurate than a paddlewheel.
Resolution of 0.01 knots.
Accurate up to 65.00 knots.
Provides GPS NMEA 0183 data to your chartplotter, Nav program, etc.
Good backup if your paddlewheel suddenly stops working.

Tested to work with:

Raymarine ST-40.
Raymarine ST-50.
Raymarine ST-60.
Navman S100.
Navman Speed 3100.
NASA Clipper Duet.
CruzPro SLT110.
CruzPro MaxDS110.
CruzPro MaxVu110.
CruzPro SLT-60.


SOG2 GPS paddlewheel signal converter

The SOG2 creates an analog paddlewheel output signal from the built-in GPS NMEA 0183 so you can connect and display Speed Over the Ground (SOG) on a standard analog or digital speed log.

The SOG2 replaces a thru-hull or transom mount paddlewheel speed transducer and provides Speed Over the Ground in place of Speed Through the Water.

No more cleaning of paddlewheels to remove marine growth or weeds.

Provides a more accurate estimate of time to get to your destination since it is not affected by water currents and provides a resolution of 0.01 knots from 0.00 to 65.00 knots.

The SOG2 is powered by 12VDC and draws only 0.04 amps.

Read the article about the SOG1 (without internal GPS) written by Mark Corke here: Click here to read the article



SOG2 Connection Diagram


SOG2 Connection Diagram

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