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Re: best Radio, Rom?
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![]() cellular radio telecom definition A radio system that positions numerous, low-power transmit/receive antennas throughout a metropolitan area, thereby dividing a large area of coverage, or macrocell, into smaller microcells, or even smaller picocells. Allocated spectrum is divided into a number of bands and further subdivided into a number of voice grade channels.The bands are distributed among the cells and each frequency band can be reused in nonadjacent cells. The basic concept of cellular radio dates to 1947, when numerous, lowpower transmit/receive antennas were scattered throughout a metropolitan area to increase the effective subscriber capacity of specialized mobile radio (SMR) systems. The first prototype cellular radio system was developed by AT&T and Bell Labs in 1977. The first commercial cellular system was activated in Tokyo, Japan by Nippon Telephone and Telegraph (NTT) in 1979.The first commercial system in the United States was activated in Chicago in 1983. The coverage area of each individual cell overlaps those of neighboring cells, with the cell diameter generally a minimum of about one mile and a maximum of about five miles, sensitive to factors such as topography and traffic density. Approximately in the center of each cell is a fixed antenna known as a base station (BS) that establishes and maintains connections with mobile stations (MSs). As a mobile station moves out of the effective range of one cell, the call switches from one base station to another through a process known as handoff, in order to maintain connectivity at acceptable signal strength. The handoff is controlled through a mobile telephone switching office (MTSO), which is the functional equivalent of a central office in the public switched telephone network (PSTN).The MTSOs generally are interconnected and also provide connections to the PSTN. Cellular radio initially was analog in nature, although contemporary systems are largely digital.Analog standards include Advanced Mobile Phone System (AMPS), Narrowband AMPS (N-AMPS),Total Access Communications System (TACS), and Nordic Mobile Telephone (NMT). Digital standards include Digital AMPS (D-AMPS), Global System for Global Communications (GSM), Personal Communications System (PCS), and Personal Digital Cellular (PDC **Now, the reasons to flash a new one is if you have poor voice/data coverage with the stock one and lots of heat in the hand. Some of the best ones out there are the Telus radio and the new Sprint Radio. Follow these thread to learn about which radio/city are best based on user experience. http://forum.ppcgeeks.com/showthread.php?t=56611 Here is the thread with the radios available. http://forum.ppcgeeks.com/showthread.php?t=40609 Since you already have flashed a custom rom, you will also know how to flash a radio which is the same process. Best of luck. Last edited by Riley; 03-24-2009 at 04:52 PM. |
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Re: best Radio, Rom?
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Edit one more thing: Some of the radios thanks to Juggalo are packaged in a way so it will not hard reset your phone. The Telus radio 1.04.05v, Sprint 1.11.00f and the Sprint radio 1.03.15f. So post flash your will be up and running and not lose anything which is great! the others will hard reset your phone after flashing. Just wanted you to know since you will lose your customizations. Last edited by Riley; 03-24-2009 at 05:07 PM. |
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Re: best Radio, Rom?
No problem. Also if you have any questions regarding radios, you can visit the radio sticky and people will respond if you need help. I have noticed without a doubt better performance with the telus radio rom. also the phone does not get as hot. Currently using the new sprint radio and it seems to be working very well as well. Good luck
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Re: best Radio, Rom?
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Basically, it's preference and location based... certain radios work better in certain areas.
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![]() Phone: Sprint HTC EVO 3D ROM: Synergy Nightly with Own Mods ![]() |
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