ELPRO RT2e, Руководство по эксплуатации

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EN - 11 Wireless Sensor RT2e
EL6107E
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5. Technical data
5.1 Radio settings
Aerial

• External, omnidirectional
• 1/4 wavelengths
• Synthetic whip
• RP-SMA connection
• The range is approximately 1000m in open areas and with line of sight
Signal weakening
in air

This example makes the dramatic relation between free space damping and transmission frequency very
clear.
The damping factor for solid materials is 4 - 6 times higher than the factor for free space damping (air).
Channel
FCC (MHz)
Color coding of
the aerial
0 - F 915 yellow
Frequency band (MHz) Signal weakening at a distance of:
10m 100m
dB Factor dB Factor
915 51.5 380 71.5 3800