Puteti cit aici exact tot ce va intereseaza legat de 3G UMTS:
http://www.umtsworld.com/umts/faq.htm#f26 si in special paragarful cu
"Tell me about UMTS / 3G electromagnetic radiation safety."According to recent news articles there have been over 700 studies related to EMR without a final conclusion, so don't hold your breath to get a final answer in a near future.
People always forget that mobile antennas radiate about 40W power, but TV and radio towers use kilowatts of power and even a hair drier generates a nice EMR field from 1000W like a kitchen microwave oven.WCDMA transmitter spread the 20-40W power over 5MHz, while GSM 40W transmitter uses 200kHz band, but GSM BTS need more radios to serve an area.
Both systems use similar types of antennas, so EMR levels are similar. Both BTSs normally use power control to minimize the used power.
Deci concluzia ? (IMG:
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E jenant sa zici ca un operator foloseste antene care iradiaza iar altul care foloseste exact aceleasi tip de antene si aceasi tehnologie nu iradiaza.
(IMG:
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Acest mesaj a fost modificat de Speedo: 17th December 2007, 02:08