ZXCBTS (V5.4) CDMA Micro Base Transceiver Station & Remote Station Installation Manual
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7. There are two types of antenna: the pointer-modulated antenna and
digital-modulated antenna. Adjust the former with a spanner and modulate the
latter by setting the exact value in the equipment room. When the control line
connecting the antenna is broken, you must adjust the antenna with a spanner.
You must measure every single-polarized antenna. For digital-modulated
antenna, keep the lower obliquity the same as planned, and keep consistency
between the two single-polarized antennae.
8. All antenna poles are installed stably and grounded well. They are vertical to the
ground, with the deviation within 2°.
9. The transceiving distance of omni antennae is no less than 3.5m.
10. The distance between an omni antenna and the tower is more than 1.5m, and that
between a directional antenna and the tower is more than 1m.
11. The top of the jacket of an omni antennae is level with or higher than the
antenna mount.
12. The distance between an omni antenna and the antenna lightning rod is no less
than 2.5m when the antenna situates on the rooftop.
13. An omni antenna can cover all areas when it is installed on the rooftop.
14. The diversity antenna of each sector corresponds with the jumper cables on top
of the shelf.
15. The diversity distance between two antennae of one sector refers to the vertical
distance between two antennae. The diversity distance is more than 3.5m for a
800M micro-BTS/remote station; the diversity distance for a 1.9G
micro-BTS/remote station is more than 1.5m; the diversity distance is more than
6.7m for a 450M micro-BTS/remote station.
16. The vertical distance between two directional antennae of different sectors
installed on the same antenna mount is more than 0.6m.
17. The antennae are separated from G-network antennae, distancing more than 1m
vertically and more than 2m horizontally.
18. The GPS antenna is installed in an open, low and safe place. It is vertical and its
solid angle is bigger than 90°.
19. A lightning rod is installed specially for the GPS antenna situated on rooftop.