2 A.6
Grounding
Sounder
One very important requirement in installation of shipboard electronics
is to obtain the cleanest, noise-free environment possible so each piece of
electronic equipment can work to its best performance levels. This require-
ment isaccomplished byassuringaproper connection from each equipment
to the ship’s RF ground system. The ground provides a drain for shipboard
noise transmission and pickup.
A separate ground wire of # 10 or # 12 AWG 10 recommended) should
be connected from the ground screw marked
the rear of the unit to
the nearest connection point of the ship’s ground system.
a steel hull
good clean connection to the hullprovides
a sufficient ground. On a fiberglass or wood hull, connection to a ground
plate or to the engine block and other bonded groundwork should be
acceptable.
2.5
TRANSDUCER INSTALLATION
25.1
General Information
Each
Color Echo Sounder is provided with one of the new 2528
transducer assemblies. The ‘Iii-frequency transducers oper-
ate at
and 28Khz frequencies and are rated to
ofaverage power
peak).
The
intended for direct
hull mounting with thru-bolts and a
stuffing tube, while the 2528B bronze
transducer is used when the more tradi-
tional
stem mounted style is
preferred. Stuffing tubes for the 2528L
for use in wood, fiberglass, or steel ves-
sels and fairing block assemblies suit-
able. for both transducers are available,
as options, from your Raytheon dealer
to simplify installations. (See Options
list)
INSTALLATION 20
