saaana tu tena makubwa utaanza kuzaa watoto wenye vichwa vya kama virus vya ZIKA
Hii ndo taaluma yangu, so am well aware of what I am talking.
This is a popular misconception about mobile phone base stations. measurement of radio waves around a base station is done using a broadband meter.
For statrters, exposure to Radio waves depends on the transmission power, This Transmission power is determined by the intended coverage area.
Now, exposure to Radio waves greatly reduces as the distance between the subject and the transmitting antenna increases. having said that, now let us analyze a mobile Base station(Mnara).
The coverage area of base station in the urban areas is relatively small since there are many obstructions(buildings) its better to have many small base stations covering every possible angle. Since the coverage area is small the transmission power is very small. In rural areas the coverage is abit wide and the transmission power significantly higher. but it cost more to transmit at high power, so mobile carriers prefer to link base stations and transmit at low power around centres where there is more traffic(wateja).
Lets talk specifics, A 1500W Base station with a typical coverage of 35km radius will have only 20 watts transmitted through each antenna which are typically 3. In order to come close to the radio waves exposure limit of this antenna you will have to be about 1 to 2 meters from the FACE of the antenna, this means that if the antenna is above head height then you are already clear of the exposure area limit. with most tower heights being above 15 meters high the radio waves hit the ground level at about 60 to 100 meters, this means that the exposure to radio waves at this distance is a thousand times below the limit.
On the other hand, the circular dish like antennas are called Radio links, the radio links, link different base stations to one another to eventually form a network. Radio links produce a pencil beam at very high frequency(microwave) and at very low power, at this transmission power, the measuring probe of the broadband meter will have to be inside the antenna to even come close to the Radio waves exposure limits. This means that even standing infront of the antenna you'll still be clear of the radio waves limit area.
What we should be worried about are the TV and Radio transmission sites. Since they require a very large coverage area, in the range of hundreds of kilometers. their transmission power is very large and so is the Radio waves exposures. To give a clearer picture, ukienda transmission site ya radio stations kwa mfano Radio Free Africa pale Igoma Mwanza nane nane. wana hadi Transformer ya Tanesco pale since their power consumption is huge.
so if you ask me, ntaishi kwenye nyumba iliyo CHINI ya mnara wa sim any day but sio iliopo KARIBU na transmission site ya radio au TV.