Codan Radio Radio Repeater Systems Training Guide - Manual (Page 39)

RADIO REPEATER SYSTEM | TRAINING GUIDE
Chapter 4: Installation and Maintenance Page 31
CHAPTER 4: INSTALLATION AND MAINTENANCE
INSTALLATION HINTS AND TECHNIQUES
Similar to installation of a mobile or a base station, the installation of a repeater requires care and
neatness. The following suggestions may be of value:
a) All outside cabling should be well secured.
b) Any messenger cable between poles, towers and buildings should be of good quality 6 mm (1/4
in) galvanized wire, or 3 mm (1/8 in) stainless wire.
c) Ground lines of 6 mm (1/4 in) copper wire from antennas must take the shortest path to earth.
Weld or double clamp connections. Ensure that the ground lines and the coaxial cables are
separated by as much distance as possible.
d) Secure coaxial cables using ultra-violet light resistant plastic ties (the black ones). Coaxial cable
entry to buildings through lightning resistant feed-throughs is recommended.
e) Crimp-on, Type N, coaxial cable connectors are also recommended.
f) If using a cylindrical fi berglass building for accommodation, ensure that curved battery shelves
are secured to the base. High winds on site can move a shelf right across the fl oor, even when
loaded with 450 kg of batteries.
g) If using a fi berglass building, use 1.8 m (6 feet) rock bolts to anchor the corners instead of tying
down with cables and short rock anchors.