| 摘要 |
PROBLEM TO BE SOLVED: To provide an antenna system that does not produce noncovmities, such as damages or interference to other devices, even during the construction work in a forest or the like. SOLUTION: The front of a cab 11 of a construction machine is provided with a front window 12, and the rear face of the cab 11 is provided with a rear window 13. Furthermore, an entrance door is provided with a door window 14, the left side face of the cab 11 is provided with a left side window 15, and a right side face of the cab 11 is provided with a right side window. The front window 12 is equipped with a wiper and is installed capable of opening/closing in the vertical directions. Moreover, the door window 14 is opened/closed every time the operator gets on/off the machine. An antenna 18 is provided to one or both of the rear window 13 and the left side window 15.
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