JC-4s manual version 9.1 page 14
Important safety instructions:
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Read these instructions prior to installation of the product and heed warnings Retain this document.
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Apply during installation and use all possible safety countermeasures, like described in amateur radio
courses and literature.
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Install the product out of reach of persons and animals.
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Always install the product so that it cannot fall on persons or property.
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Do not attempt to modify the enclosure . Attempts to modify the enclosure will damage it and void
any warranty.
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Inspect the product on a regular basis and immediately replace if damaged.
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Install additional external lightning protection and earthing, as a means of secondary protection, and
disconnect the antenna wires during thunderstorms.
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Never work on the antennas or antenna wires during thunderstorms.
You will find the following “High Voltage Hazard” symbol on the product, indicating that the terminals
(just like the antenna itself) carry dangerous high voltages during transmission, and that caution is
required, in order to avoid electrocution or RF burns.
You will find the following "crossed out wheeled bin" symbol on the product, indicating that it can harm
the environment and it should be disposed of by the end user, separate from other types of waste.
In case of questions, please contact your local authorities regarding recycling.
Any questions you can email to:
The specifications and information regarding this product are subject to changes without prior notice.
All statements, information, recommendations and warnings in this user guide are deemed to be
accurate, but are given without any warranty. Users must take the full responsibility for the application
of the product.