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| All I remember about the equipment in the cab is a box about 8 inches square and an antenna. The box had a couple switches and a big dial like an ammeter. Keep the needle centered and you were on swath. The swath had to be incremented manually with one of the switches. It triangulated the position of the floater with radio signals from the two transmitters that were located on a field edge perpendicular to the swath. I never drove a floater with one of theses systems, but I did see one work. Accuracy was better than most drivers could achieve with foam markers. Reliability of the hardware was not good. It may have been made by Motorola. I forget what it was called. | |
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Old time field positioning
