C_wiz: for total recall

Low cost, high performance vessel monitoring for Microsoft Windows

"Small minds discuss people, average minds discuss events, great minds discuss ideas."

- Admiral Hyman Rickover

Acknowledgements to Ken (Will's brother)...

D3 Library and SDK

At the heart of the flexibility of C_wiz is the D3 (data device driver) architecture.

What is a D3

Current D3 Library

All D3s listed below are included with the Evaluation Edition Download.

As D3s are not particularly hard to write, our intention is to provide any D3s developed in the future by ForTotalRecall free of charge. This statement of intent obviously can not cover any D3s written by third parties.

All D3s have inbuilt diagnostics tools, a 60 second trace capability and fully utilize the C_wiz Test Drive facility to provide context sensitive online documentation.

Contact Us if you think we don't have your requirement covered.


The AIS D3 listens to an AIS (Automatic Identification System) transponder or receiver which is issuing NMEA  0183 !..VDM messages. It can also simultaneously listen to a GPS which is issuing NMEA 0183 $..RMC messages.

Any other messages from the AIS or GPS are ignored.

The D3 extracts data about AIS targets and sends it to C_wiz. This data may be dynamic (such as latitude, longitude, course and speed) or static (such as vessel name, call sign, destination etc).

When the D3 is simultaneously listening to a GPS it can filter the AIS data based on user supplied thresholds for CPA (closest point of approach) and TCPA (time to CPA).

Caterpillar M5X


COM On-Off

COM Patch Panel

CruzPro All-In-One

Depth (NMEA 0183 DPT)

Frame Grabber (LTMM)

Frame Grabber (S2255)


ICP DAS 7000(II)

Rudder (NMEA 0183 RSA)

SAE J1587

System Monitor

VDO Logic Combi

D3 Plans

D3 Software Development Kit (SDK)


Other Services



D3 Library and SDK

Dreaded Feature Summary



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