JRC JHS-207, Instruction Manual

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10 Installation
Since the JHS-207 can be supplied as a GMDSS or a Maritime VHF radio and each
radio uses a different battery, ensure you install the batteries appropriately.
Following the applicable installation process according to the battery you will use;
either the emergency battery or the rechargeable battery.
Important
The Emergency battery should only be installed on the GMDSS radio in the event
of an emergency.
10.1 Upon receipt of the radio
Upon receipt of the radio, do the following:
1. Connect the antenna.
Important
When assembling the antenna to the radio, ensure you hold it at the base while
turning it clockwise. When the antenna starts to resist turning, turn it another 90
degrees.
Holding the antenna anywhere but at the base during assembly will damage it.