Selecting The Installation Position - JRC NTG-420 Installation Manual

This instruction manual describes installation method of the NTG-420
Transmitter-Receiver. This manual describes radar system configuration with
X-band Radar Antenna and NCD-2247-1B PC type radar monitor display as an
example.

1. Selecting the installation position

1) Physical selection criteria
• Install the antenna at the center of the mast on the keel line.
• If the antenna cannot be installed at the above position for some reason, the
amount of deviation must be minimized. And, reinforce the mount base
and the platform and take precautions to protect the antenna from vibration
and impact at the installation position.
• To avoid the radiating section coming in contact with other installed objects
while it is rotating, ensure that there is at least 200 millimeters from the
swing circle (turning radius) to other installed objects (Fig.1-1). The swing
circle of the X-band Radar Antenna is as shown in Table 1-1.
min-height
必要最小高さ
- Preface -
Over 200mm
200mm 以上
Fig.1-1 Installation of antenna
Table 1-1 Swing circle
Antenna
X-band Radar Antenna
2
min-offset
オフセット最小
reinforcing member
Swing circle
2825mm
7ZPRR0001
補強材