Bts Antenna Safety Distance
A bts typically has multiple transceivers that allow it to serve many of the cell s different frequencies and sectors.
Bts antenna safety distance. The product range in the mobile communications segment extends from 25 to 6 000 mhz featuring directional and omni directional antennas tailored to specific customer needs as well as special antennas for buses and trains and for ground to air communications. Off air via an antenna on the roof an on site bts base transceiver station and finally the newest approach. But it generally doesn t generate the cellular signal itself. A receiving antenna is generally circular or elliptical in space.
Kathrein s extensive product range can be appreciated in the catalogue for the 690. Not all mobile antennas are the same. A parent base station controller bsc controls all btss via the base station control function bcf either a separate unit or integrated with the trx for compact base stations. If the vertical antenna is three feet above your head you will be in a much lower field of rf energy than if the antenna is at your eye level and three feet horizontally from you.
The network can be that of any of the wireless communication technologies like gsm cdma wireless local loop wi fi wimax or other wide area network. At this distance the power density of our terminal is computed by eq. Some manufacturers recommend that users and other nearby individuals maintain some minimum distance e g 1 to 2 feet from a vehicle mounted antenna during transmission or mount the antenna in such a way as to provide maximum shielding for vehicle occupants. There are four typical signal sources.
There is a difference between a receiving antenna and a transmitting antenna. The most usual way to make out is the difference in space. For bcch broadcast control channel channel 46 3 60 0 04 17 57 6dbm 575 439watts. For a mobile phone base station antenna mounted on a tower that is 5 meters high about 15 feet there should be no areas that will come anywhere close to the rf radiation safety guidelines so the concept of a minimum safe distance doesn t really apply to generally occupied areas.
Safe distance from a mobile phone tower making sense of the antennas. Because of this a vertical separation distance will be even more effective than a horizontal separation distance. The computed result is 3 2 w m 2 less than 10 w m 2. In some bts systems trx carriers unit rru remote radio unit will be installed very close to antenna in such cases rf cable length from rru to antenna will be less than a metre and hence rf cable loss can be omitted.
A das needs to be fed signal from somewhere. A distributed antenna system as the name implies distributes signal. Posted 03 25 2007 01 20 pm et us. A base transceiver station bts is a piece of equipment that facilitates wireless communication between user equipment ue and a network.
Eirp for gsm system. Ues are devices like mobile phones handsets wll phones computers with wireless internet connectivity.