Ian Waugh - A Mariner\'s Guide to Marine Communications

whip

antenna

(r('ccivN)

wire

antenna

(transmitter)

insulator

sarf't)" loop

m<tsl ur

other

sup("rstructure

insdeck ulator ABOVE DECK

~~--~------------~--------------~-----------

earth strip

receive

"spliUer" antenna box I I-__ ~===~

MF/ HF

'----<tlscanning watch

receIver

reciever

User

Interface

main installationD

optional --__ extras" 1 - -, I

,

MF/HF

trans~

ceiver

unit

Main

control

unit

, , , ,

, ,

,

BELOW DECK

J 2124 volt

DC power

supply

'AC;DC~-----------() ,. 'ACpower supnly 0

l_r~c_tJ~e! t-- _ ___ Co --

remote

control unit

remote

speaker

--.(!iandsV

-------,- (for computer NBDP/ telex) -,

<€<aggg82>

, L. __ local area --~ ,

network

Figure Z2

The MF/HF Radio Installation

Antenna arrangement might include:

A whip antenna (of around six to nine metres in length).

• A wire antenna.

There will be an antenna coupler or antenna tuning unit (ATU) on
the antenna used by the SSB Transmitter. The ATU may be above or
below deck.

MARINE COMMUNICATIONS 137