Campbell TurfWeather, Инструкция по эксплуатации

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TurfWeather Weather Station
FIGURE 2-1. Ten Times the Height Rule. If the height of the tree, T, is
8 feet and the height of the shed, H, is 7 ft then the weather station
should be placed at least 80 ft away from the tree (i.e., 10T = 10x8 =80
ft) and 70 ft away from the shed (i.e., 10H = 10x7 = 70 ft).
Another option when obstructions exist is to raise the weather station height
above the obstruction by using mast extensions.
a. If your weather station will be inside a fence to discourage
vandalism, the fence top must be lower than the wind sensors
even if the fence is chain-link.
NOTE
b. Accurate wind measurements require your weather station to
be located at the highest point in a particular region.
c. The tripod/mast height cannot exceed 10 feet (312 cm).
2.3 Communications Considerations
2.3.1 Direct Communications
Short-haul modems enable communication between the weather station and
computer over two twisted pairs of wires. This communication requires the
DCE/DTE switch on the modem to be in the DTE position at the weather
station, and in the DCE position at the computer.
2.3.1.1 Cable Lengths
The maximum distance between modems is determined by baud rate and wire
gage. At 9600 baud, the approximate range is 2 miles using 24 AWG wire.
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