Komatsu PC118MR-8 Operation And Maintenance Manual page 192

FUNCTIONING
KOMTRAX SYSTEM
q Be careful not to let water deposit on the communication terminals or their cables.
q Do not disconnect or tamper with the KOMTRAX communication terminal; consult the Komatsu
Distributor in case of failures.
REMARK
As KOMTRAX is a wireless system, it cannot be used inside tunnels, undergrounds, buildings or in mountainous
areas where radio waves cannot be received.
Even when the machine is outdoors, it cannot be used in areas where radio signals are weak or areas not covered
by the signal.
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