Indoor Installation - JRC JSS-296 Service Manual

3.4.1

Indoor Installation

Prior installation, complete the necessary preparation for the mounting brackets, grounding and laying of
cables. Grounding is very important for the transmission and reception of radio waves not only by
preventing induction impedance and reducing harmful noise but also by effecting antenna performance.
Take sufficient caution when performing grounding work and follow the instructions carefully.
(a) Construct mounting brackets and weld them to the ship wall.
(b) Weld the grounding terminal to the wall of the ship.
RUBBER
VENTILATION TUBE
RF CABLE
L=0.2m
WELDING
RG-10/U
(*1) GROUND TERMINAL
6ZPKD00084 (JRC supply)
130
TO ANTENNA
STAND-OFF
INSULATOR (SK-70)
250
4-M10
ANTENNA
TERMINAL
JRC
EARTH CABLE(*2)
EARTH PLATE
SOLDERING
GROUNDING
TERMINAL(*1)
CONTROL CABLE
L=0.6m
NQD-4190
Junction Box
4-M8
MPYCYS-12
(*2) EARTH CABLE
WIDTH: 50
LENGTH: 350
THICKNESS: 0.3
Figure 3-7 ANTENNA TUNER Installation (Indoor)
7ZCJD0144 (JRC supply)
SHIP WALL
MOUNTING BRACKETS
(DOCK supply)
MOUNTING BRACKETS
(DOCK supply)
WELDING
MOUNTING BRACKETS
(DOCK supply)
UNIT [mm]
EARTH CABLE
23