Campbell TurfWeather, Инструкция по эксплуатации

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TurfWeather Weather Station
2.3.1.2 Grounding Issues
Outdoor cables may be subject to induced currents due to lightning or other
environmental factors. Therefore proper grounding is imperative to avoid
damage to the weather station and/or the Host computer.
To minimize the possibility of equipment damage or
personal hazard, we strongly recommend a qualified
electrician design and install the grounding and data
isolation components of a directly wired installation. CAUTION
2.3.2 Wireless Communications
2.3.2.1 Transmission Ranges
Site your TurfWeather weather station within the spread spectrum radio
transmission range. Typical transmission ranges are listed below:
x
Up to ½ mile (0.8 km)for the weather station 916MHz and weather station
922MHz
x
Up to ¼ mile (0.4 km)for the weather station 2.40GHz
x
Up to 7 miles if an optional higher gain antenna is installed on both the
weather station and the RF401 Base Station
a. The transmission ranges assume standard weather station
antennas are used at the computer site. User-supplied, higher
gain antennas at the base station or on the weather station can
increase the transmission range. NOTE
b. The ranges assume no obstructions are in the line-of-sight.
Line-of-sight is defined and described below.
2.3.2.2 Line-of-Sight
Line-of-sight is defined as a straight path between a transmitting and receiving
antenna that is unobstructed by intermediate topography or obstructions (see
Figure 2-2). A clear line-of-sight is required to achieve the optimum
transmission range. The affect of obstructions on the transmission range can
vary. Therefore if obstructions lie within the line-of-sight, you should test your
radio transmissions before permanently installing your weather station (see
Testing Radio Transmissions (Section 2.3.2.3).
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