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4 ANTENNA & ACCESSORY SOCKET
4.1 Antenna
The antenna for the radio is fitted to the unit
via a robust screw fitting to an M8 threaded
socket on the top of the radio (Fig 4.1). This sys-
tem is more rugged than a traditional BNC
connector, so the radio’s drop-proof integrity is
not compromised by the antenna fixing.
While the radio is drop-proof and very robust,
damage to the antenna such as bending or
kinking may adversely affect the transmission
efficiency of the unit, which may lead to over-
loading of the power module. Damaged anten-
nae should be replaced immediately.
Replacement antennae can be purchased from
authorised Simrad Service Agents. A full list is
supplied with this unit. Please refer to section
5.1 for more details on spare parts and acces-
sories available.
4.2 Accessory Socket (150 & 250 only)
Commercial and GMDSS versions of the radio
(150, 250) have an accessory socket fitted
behind the antenna housing (Fig 4.2). This
socket will accept approved accessories such as
waterproof fistmikes and headsets.
The accessory socket is waterproof, but it has
an additional splash cover to protect the elec-
trical contacts from prolonged exposure to
moisture. Always replace the cover when the
socket is not in use. A coating of silicone or
Teflon grease to the socket is recommended to
assist in protecting the contacts from moisture.
Always turn the radio off before plugging any
accessory into the socket. It is recommended
that any excess moisture is wiped away to
avoid any problems caused by water shorting
out adjacent contacts.
NOTE - The use of unapproved accessories
with the accessory socket may damage the
radio and invalidate the warranty.
Fig 4.1 - Antenna fixing
Fig 4.2 - Accessory socket (150/250 only)
Splash Cover
