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USER & INSTALLATION MANUAL
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extended navigation & communication
ExNC
extended navigation & communication
ExNC
6.3 Antenna installation
6.3.1 VHF antenna installation
Please make sure that the antenna used with your ExNC 101 is a marine band
antenna having following characteristics:
Frequency band from 156.025 to 162.025 MHz
Antenna type: Vertical radiator
Impedance: 50 Ohm
Antenna gain: 0-3 dBi with a bandwidth sufficient to maintain VSWR <
1,5 over the frequency band
Connector type: SMA
The best spot to place the VHF antenna is high above sea level. The height of your
antenna influences the range of your transceiver. Place the antenna at least 3 m
away from any other VHF antenna and give them different heights. Allow the antenna
a clear 360° view to have the best performance.
Concerning your own and your passengers’ safety mount the VHF antenna at least
3m above any person standing on deck to meet safety directives on Maximum
Permissible Exposure (MPE) / Specific Absorption Rate (SAR).
Run the antenna cable at the shortest way to your transponder to avoid any signal
loss. All connectors need to be properly terminated and sealed to avoid humidity,
signal losses, and reduced functionality.
WARNING
Leaving the VHF antenna port disconnected, or shorting the VHF antenna port will
activate the VSWR alarm and causes the unit to stop transmitting position reports
and can cause damage to your transponder.
www.busse-yachtshop.de | info@busse-yachtshop.de
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