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Technology Stocks : The New Qualcomm - a S&P500 company

QCOM 165.13

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Nov 26 3:59 PM EST

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To: engineer who wrote (3997)	12/7/1999 1:00:00 PM
From: RalphCramden	Read Replies (1) of 13582

I think the numbers are a LOT lower than that. What did you do to get these? For CDMA, I thought it was about 7 per secotor per 1.25 MHz. So a 3 sector base station would be 21 calls. I've heard it will go to 17 with some recent upgrade (heard from a Sprint guy). That is still only 51 per base station, where do you get 200? For AMPS, each voice call takes 30 kHz. BUt you can only reuse the frequency in one out of every 21 sectors in order to not get mutual interference. So a 3 sector base station in a system limited to 1.25 MHz bandwidth could carry about 6 voice calls. Where do you get 57? engineer wrote: Each 1.25 Mhz band will carry about 57 analog callers per cell site versus about 700 with a fuly runing CDMA system.

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