The Cellular Connection 1 phần 9 docx

... installation, the The Cellular Connection: A Guide to Cellular Telephones, Fourth Edition. Robert A. Steuernagel Copyright  2000 John Wiley & Sons, Inc. ISBNs: 0-4 71- 316 52-0 (Paper); 0-4 71- 20340-8 ... places the transceiver close to the antenna, which is usually mounted toward the rear of a vehicle. This proximity allows the length of the cable that connects the t...

Ngày tải lên: 07/08/2014, 21:20

... and the voice from the other end of the connection usually came through a loudspeaker. You couldn’t dial a call; instead the mobile operator at the other end of your radio link established the connection ... and interference from other phone systems was a common problem. Even so, the demand for mobile phone service was greater than could be met. In the late 19 60s and th...

Ngày tải lên: 07/08/2014, 21:20

... a nonwire- line, and the other to a wireline, the B block. The lower band (824—8 49 MHz) is for use by cellular phones to transmit to cell sites, and the upper one (8 69 894 MHz) is for use by ... 0-4 71- 20340-8 (Electronic) 9 Figure 2.2 CELLULAR FREQUENCIES Cellular frequencies range from 824 to 894 MHz, with a gap between 8 49 and 8 69 MHz for use by other communication...

Ngày tải lên: 07/08/2014, 21:20

... ‘‘*’’ on the dial, called ‘‘star.’’ Thus, ‘‘STAR-6 -1- 1’’ (or * 611 ) will usually connect you to your carrier’s customer service department. If you dial ‘‘ 611 ’’ without the ‘‘*,’’ you would get the ... dial the number for you. If you dial only ‘‘ 411 ,’’ without the star, you will get the local telephone company’s directory assistance services. It is important to remember to u...

Ngày tải lên: 07/08/2014, 21:20

... to hang up when they no longer hear the signal from the modem at the other end of the line. When one modem hangs up, so does the other. With dropouts and handoffs being a fact of cellular life, ... existing modem, to use it on a cellular system at the very least a device is needed between the modem and the cellular phone. This device makes the cellular phone appear t...

Ngày tải lên: 07/08/2014, 21:20

... 41 45, 52—55, 60, 64—73, 89, 95 96 , 10 1 10 2, 10 5 10 6, 11 3 11 5, 12 1, 12 2, 12 6, 12 7. See also Service provider CDMA, 11 4, 11 5, 12 1, 12 2 CDPD, 93 , 12 2 Cell, 4—7, 93 , 10 2, 11 0 11 1, 12 2, 12 3, 12 6 Cellphone, ... 73, 89, 95 , 10 7 10 9, 12 4 Dial tone, 53, 92 , 95 , 11 9 Digital, 24, 27, 92 93 , 11 2, 11 3 11 6, 12 1, 12 2, 12 4, 12 7 Dropo...

Ngày tải lên: 07/08/2014, 21:20

... Ericsson, NorTel, and Nokia, among others. Cellular HOW LICENSES WERE GRANTED 21 3 THE BUSINESS OF CELLULAR PHONES The business of cellular phones is a big one. Although cellular phone companies must ... beginning in 19 83 in order of city population, with licenses for the largest cities awarded first. While some potential users have had to wait for service in smaller cities, i...

Ngày tải lên: 07/08/2014, 21:20

... sales commissions paid to them by the carrier for cellular subscriptions to ‘‘buy down’’ the retail price of the cellular phone, so that the price of The Cellular Connection: A Guide to Cellular Telephones, ... price, the phone and service will be much more valuable to you if you’ve taken the time to go over everything on the list. 30 GETTING CELLULAR SERVICE Table...

Ngày tải lên: 07/08/2014, 21:20

... 29. 95 0 0.40 0.25 48.45 45.45 10 3 .95 91 . 95 Personal 19 .95 30 0.75 0.25 32 .95 28 .95 13 0.45 96 .45 Business 49. 95 10 0 0.35 0.25 49. 95 49. 95 82 .95 78 .95 Volume 79. 95 200 0.33 0.25 79. 95 79. 95 79. 95 ... you pay the long-distance rate between the MSC and the point you are calling. [2] When someone calls you, they pay the rate between their phone and the MSC and...

Ngày tải lên: 07/08/2014, 21:20

... A $0 .99 B $0.65 Las Vegas A $3,00 $0 .99 B $3.00 $1. 09 Los Angeles A $0 .99 B $2.00 $1. 09 Miami A $0 .99 B $0.65 Milwaukee A $0.65 B $0.65 Minneapolis A $0 .99 B $0.65 New Orleans A $3.00 $0 .99 B ... $0.60 B $0.65 Baltimore A $3.00 $0 .95 B $0.65 Boston A $3.00 $0 .99 B $1. 09 Chicago A $3.00 $0.85 B $0.65 Dallas A $0 .99 B $0.65 Denver A $0 .99 B $0.65 Detroit A $0 .99 B $0...

Ngày tải lên: 07/08/2014, 21:20