2-5
Installation
Chapter 2: Installation
98-144591-D
Mounting the Units
2.2.3 Mounting the Antenna Tuning Unit (ATU)
The ATU may be positioned up to 100 metres from the Transceiver Unit using just one RG-213/U or
better coaxial cable.
The ATU must be installed outside in a convenient position to have good access for suffi cient length
of feed wire to meet the antenna connection point. It is recommended that the ATU be installed verti-
cally to allow any moist condensating inside the ATU to drain out through the rubber gasket along the
coax cable.
Antenna Tuning Unit 150 W/250 W
It is recommended to use the mounting bracket shown in section 2.2.4
Space for cable and
service access
164 mm 164mm
271 mm
150Min. mm
75 mm
12 mm
80 mm
200 mm
352 mm
504 mm
500Min. mm
50Min. mm
Space for
service access
Space to nearest overhang
80 mm
290 mm
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