Codan-radio Radio Repeater Systems Training Guide Uživatelský manuál stáhnout pdf (Strana 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.

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Codan-radio Radio Repeater Systems Training Guide Uživatelský manuál Strana 39