Category Archives: Troubleshooting

Com Port Solutions

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USB to Serial Connection

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Merlin 8.4 Software Manual

merlin drag race software manual

Comprehensive manual for Merlin 8.4 weather management and drag racing  prediction software. More than 40 pages with tips, techniques, pictures, and step-by-step instructions for getting the best performance from your Altalab.

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WSI Maintenance

For owners of the older anemometer (cups are 1 inch in diameter) which does not have sealed bearings.

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Testing the Remote Sensor Cable

Especially useful for diagnosing faulty weather readings when your remote sensor cable is permanently routed through your trailer.

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Eprom Upgrade in AltaCom II

This is for customers who upgrade anemometers (wind speed sensor) in the field. A new eprom is required to compensate for the difference in wind cup size between WSI and WSI-PRO 23.

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Establishing Ground in the Remote Sensor Cable

Your AltaCom II weather readings will fluctuate and are unreliable unless you have sufficient ground between the metal hoods of your remote sensor cable ends. This is how to correct the problem in the field.

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  • What Racers Say:

    "If you're running in the other lane, I'd prefer you get your weather off of the end of your finger .... but if you want to know what you are going to run before the lights come down on the tree, I'd suggest you have an Altalab in the trailer." Jeff White, Crew Chief NHRA Top Dragster