Scenario and some new, more uniform, communication standards are being developed by Kel Aero and PAI, that are evolving into a compact, mass-producible, highly accurate aviation and general reporting weather network. Scenario and PAI electronics are important weather sensing and reporting components in a new aircraft instrument landing system called

PAMILA

Electronic weather stations range in price and availability from small home systems that can be purchased at the discount department store, to systems costing a quarter of a million dollars.

When design work began on P.A.M.I.L.A., there were no commercially available barometers, capable of maintaining the necessary stability to function with the high level of proportional rate technology developed by Kel. One product, the best at the time, was stable only to 1/10th of a millibar (3.5 feet of altitude) which meant that if we had used it in our system the rate display would have been wandering positive and negative excessively, rendering it useless. Scenario requires that the barometer be stable at .03 millibar (1 foot of altitude) which provides a useful proportional rate (ProRata) signal at .1 millibar instantaneous rate, per hour.

The function of Scenario is to "anticipate" changes in the atmosphere, and project or forecast for localized events. The sensing head is compact, and contains the three primary atmospheric sensors

Barometer

Air Temperature

Relative Humidity

The integrated sensor and signal conditioning electronics are protected with a dynamically aspirated

Radiation Shield

Wind speed, direction, and a 10 minute gust average is included.

Wind Bird

Wind Shear Research

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