Trimble Inc. 7112-900IP Benutzerhandbuch
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2.1.1 TC900 Location on Machine
Several factors should be considered when locating the optimum site for TC900
installation. The unit should be placed as high as feasible on the machine.
installation. The unit should be placed as high as feasible on the machine.
Make sure the antenna is mounted so that its radiating element is completely
above the top of any obstructions, including any mast used as a means to elevate
the modem to a more favorable location on the machine.
above the top of any obstructions, including any mast used as a means to elevate
the modem to a more favorable location on the machine.
2.1.2 Antenna Considerations
The efficiency of the TC900 wireless modem can be severely impaired if the
mounting location permits obstruction of the antenna radiation path by metal
objects. When the TC900 is installed on a machine, ensure that the antenna base
and tip are above the machine, such that if the antenna were bent to its full extent,
it would not hit anything.
mounting location permits obstruction of the antenna radiation path by metal
objects. When the TC900 is installed on a machine, ensure that the antenna base
and tip are above the machine, such that if the antenna were bent to its full extent,
it would not hit anything.
Note – The TC900 antenna contact tip, see Figure 1-2, has been designed for
maximum efficiency and very low loss. In order to maintain its integrity the
flexible antenna base has been bonded to the top end-cap assembly.
maximum efficiency and very low loss. In order to maintain its integrity the
flexible antenna base has been bonded to the top end-cap assembly.
Caution – Do not attempt to remove the flexible antenna base from the TC900
top end-cap under any circumstances. Forcibly removing the antenna base will
damage this contact tip.
top end-cap under any circumstances. Forcibly removing the antenna base will
damage this contact tip.