hi,
how much output power is needed during transmission for a mobile phone ?
i was told that it is 0.5 w from BSNL(Bharat Sanchar Nigham Limited) in Tamil nadu, India.
anybody can give other ideas
GSM Mobile phones have 2W max. output power.
This power is variable depending on phone-base station distance.Mobile phone would adjust the output power regarding to received BER level.
Actually it depends on the standard used. The max. output power depends on the MS power class. In GMS900, most of phones are power class 4 and transmit 33dBm (2W) while they are class 1 in DCS1800 and transmit 30dBm (1W).
For more data, check the 3GPP site in the section specification download. look for 51.010.
I use to work for the Nextel Cell Phone company back in 2000. I was told that the tansmit power is .5Watts for the cell phone. The base station radio transceiver was around 70 Watts. I never questioned it to be false I just trusted in the fact that my superiors knew what they were talking about