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Technology Stocks : Qualcomm Moderated Thread - please read rules before posting -- Ignore unavailable to you. Want to Upgrade?

To: Amots who wrote (79249)	7/28/2008 2:18:48 AM
From: pheilman_	Read Replies (1) \| Respond to of 196545

Amots, CDMA systems minimize transmitted power to just enough to have communication at the base receive antenna. The peak power, which is the biologically relevant number, is higher in a TDMA system. If the transmitter is only on for 1 out of 8 slots, it must be, at a minimum, 8x stronger. As you ~concentrate the information to be sent into a shorter period, you must increase the bandwidth used to transfer the information. This allows a corresponding larger amount of noise into the receiver which must be counteracted by adding more transmit power. --Paul