Number of Feeder Clamps Needed For Antenna Feeder

The number of antenna feeder depends on number of antennas. The most common dual-polarized antenna need two feeder input to work, thus for a typical angular steel tower that has three dual polarized antennas, the whole tower will require six antenna feeder cables.

According to Huawei's antenna feeder construction standard, the antenna feeder on tower must be fastened at least every one meter. For a 50-meter tall steel tower, six feeder cables clamped at every one meter would require 300 single-hole rf feeder clamps (6/1*50). We usually use double-holes feeder clamp or triple-holes feeder clamp to save efforts and reduce the number of feeder cable clamp used. In this case, we only need 150 (6/2*50) double-holes feeder clamp and 100 (6/3*50) triple-holes feeder clamp.

Number of Feeder Clamps Needed For Main Feeder

Usually the bts cabinet is close to the steel tower, and main feeder is laid in cabling tray. For main feeder's fixation outdoor, adopt feeder clamp every 1.5 meters would be enough. If there are six 10-meter main feeder cables, you will need 42 sing-hole rf feeder clamps, 21 double-holes rf feeder clamps, or 14 triple-holes rf feeder clamps. The main feeder's inside-bts-cabinet part still needs a few feeder cable clamps, usually about ten for triple-holes feeder clamps.

Number of Feeder Clamps Needed For Whole BTS Installation

One-hole feeder clamp is hardly used in bts installation because it is not economy; feeder clamp more with than three-holes are not strong enough sometimes. Thus, the triple-holes feeder clamp is used most commonly. Now we just need to do some simple math. The antenna feeder needs 100; the main feeder needs about 25. That is 125 triple-holes feeder clamps. If you consider damaged, spare part, or other situations, a total number of 150 triple-holes feeder clamps is definitely enough for a common base station.

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