Compliance
NGT Transceiver System Technical Service Manual 21
Electromagnetic compatibility and safety notices
Radiation safety
To ensure optimal transceiver performance and to avoid exposure to excessive
electromagnetic fields, the antenna system must be installed according to the instructions
provided.
Safe working distance is based on continuous exposure to CW-type transmissions, as set
out in the ICNIRP Exposure Guidelines (1998) for occupational exposure. Safe working
distance can be reduced with normal voice communication.
Electromagnetic compatibility
To ensure that compliance with the EMC Directive is maintained, you must:
1 Use standard shielded cables supplied from Codan (where applicable).
1 Ensure the covers for the equipment are fitted correctly.
1 Cover unused connectors on the junction box (if fitted) and RF unit with the
protective caps supplied to prevent electrostatic discharge passing through your
NGT equipment.
WARNING
High voltages exist on the antenna during transmission and tuning. Do not
touch the antenna during these activities. RF burns may result.
WARNING
Install the grounding system or counterpoise as directed to prevent RF
burns from any metal part of the transceiver.
WARNING
You should not transmit from your transceiver or tune the antenna unless
people are beyond the safe working distance of:
• 1.5 m (5 ft) of any part of a mobile antenna
• 2 m (7 ft) of any part of a fixed antenna in a data installation of up to
125 W output
• 5 m (17 ft) of any part of a fixed antenna in a data installation of up to
1 kW output
CAUTION
If it is necessary to remove the covers at any stage, they must be
refitted correctly before using the equipment.
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