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2. Cellular frequencies in the United States - Wikipedia

   en.wikipedia.org/wiki/Cellular_frequencies_in...

   There are 51 MTAs, 493 BTAs and 175 EAs in the United States. The Advanced Wireless Services (AWS) bands, auctioned in the summer of 2006, were for 1,710–1,755 MHz, and 2,110–2,155 MHz. The spectrum was divided into blocks: A blocks were for Cellular Market Areas, based on existing cellular (1G) licenses, and were 2 × 10 MHz.

3. List of mobile virtual network operators in the United States

   en.wikipedia.org/wiki/List_of_mobile_virtual...

   Yes, U.S. coverage also usable in Puerto Rico & U.S. Virgin Islands; coverage also provided in Canada & Mexico with 5 GB of LTE data (unlimited 128 kbit/s thereafter), network normal usage policies apply; [393] additional international calling, texting, and roaming packages available via call center or email Yes

4. Comparison of wireless data standards - Wikipedia

   en.wikipedia.org/wiki/Comparison_of_wireless...

   Some of these technologies include standards such as ANT UWB, Bluetooth, Zigbee, and Wireless USB . Wireless Sensor Networks (WSN / WSAN) are, generically, networks of low-power, low-cost devices that interconnect wirelessly to collect, exchange, and sometimes act-on data collected from their physical environments - "sensor networks".

5. Comparison of mobile phone standards - Wikipedia

   en.wikipedia.org/wiki/Comparison_of_mobile_phone...

   GSM uses TDMA and FDMA for user and cell separation. UMTS, IS-95 and CDMA-2000 use CDMA. WiMAX and LTE use OFDM . Time-division multiple access (TDMA) provides multiuser access by chopping up the channel into sequential time slices. Each user of the channel takes turns to transmit and receive signals.

6. RootMetrics launches Cell Phone Coverage Map, uses crowd ...

   www.aol.com/news/2011-04-12-rootmetrics-launches...

   Decades later, this skeptical method is being applied to mobile carriers thanks to RootMetrics' Cell Phone Coverage Map, a crowd-sourced application aiming to provide reliable, verified ...

7. Consumer Cellular - Wikipedia

   en.wikipedia.org/wiki/Consumer_Cellular

   Consumer Cellular, Inc. is an American postpaid mobile virtual network operator founded by John Marick and Greg Pryor in Portland, Oregon in October 1995. [ 3] The company offers cellphones, no-contract cellphone plans, and accessories with a focus on users over age 50. Including its corporate headquarters in Scottsdale, Arizona, Consumer ...