ICS ELECTRONICS NAV6 V3 Series, Руководство пользователя

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NAV6 Series NAVTEX System User Guide
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Connecting an antenna to the Receiver Unit
The NAV6 Series complete systems (except the NAV6repeater) are supplied with a NAVTEX
receiver unit and 50ohm Passive NAVTEX Antenna as standard. The ICS Passive NAVTEX
Antenna is optimised for maximum sensitivity at the 490 and 518kHz NAVTEX frequency and
provides very good rejection of interfering signal outside of these frequencies.
Alternatively ICS can offer the following active antenna options:
Active 50 ohm (Whip)
1metre tall ICS order code ICS.905.04
Active 50 ohm (White Tube) 1metre tall ICS order code ICS.905.05
Note: Active antennas will require the use of an external PSU.
Tip: Active antennas offer a wider bandwidth, and when used with a suitable splitter they may be
shared with other receivers onboard such as an SSB or weatherfax.
Alternatively you may wish to use a backstay as an antenna or you may wish to run a wire
around your headlining in the cabin.
All of these options may be used with the NAV6, the suitability of each option will greatly
depend upon your own circumstances. For instance, running a wire around the cabin in a steel
boat may not be very successful.
Passive 50ohm Antenna (supplied)
ICS supply a passive 50ohm antenna that has
been specified for NAVTEX use. An equivalent
antenna specified for operation at 490kHz and
518kHz would also be acceptable.
The antenna should be connected to ANT
(antenna coax centre) and ANT GND (antenna
coax screen) on the receiver unit connector.
CONNECTOR PIN CONNECTION
1 Antenna coax centre connection
2 Antenna coax screen